Merge ca08796f77 into b323703c1b

## Changes
This PR adds a warning validating that the configuration for a single
node cluster is valid for interactive, job, job-task, and pipeline
clusters.

Note: We skip the validation if a cluster policy is configured because
the policy is likely to configure `spark_conf` / `custom_tags` itself.

Note: Terrform originally only had validation for interactive, job, and
job-task clusters. This PR adding the validation for pipeline clusters
as well is new.

This PR follows the same logic as we used to have in Terraform. The
validation was removed from Terraform because we had no way to demote
the error to a warning:
https://github.com/databricks/terraform-provider-databricks/pull/4222

### Background
Single-node clusters require `spark_conf` and `custom_tags` to be
correctly set in the cluster definition for them to function optimally.
The cluster will be created even if incorrectly configured, but its
performance will not be great.

For example, if both `spark_conf` and `custom_tags` are not set and
`num_workers` is 0, then only the driver process will be launched on the
cluster compute instance thus leading to sub-optimal utilization of
available compute resources and no parallelization across worker
processes when processing a spark query.

### Issue

This PR addresses some issues reported in
https://github.com/databricks/cli/issues/1546

## Tests
Unit tests and manually.

Example output of the warning:
```
➜  bundle-playground git:(master) ✗ cli bundle validate
Warning: Single node cluster is not correctly configured
  at resources.pipelines.bar.clusters[0]
  in databricks.yml:29:11

num_workers should be 0 only for single-node clusters. To create a
valid single node cluster please ensure that the following properties
are correctly set in the cluster specification:

  spark_conf:
    spark.databricks.cluster.profile: singleNode
    spark.master: local[*]

  custom_tags:
    ResourceClass: SingleNode
  

Name: foobar
Target: default
Workspace:
  User: shreyas.goenka@databricks.com
  Path: /Workspace/Users/shreyas.goenka@databricks.com/.bundle/foobar/default

Found 1 warning
```

.codegen.json

@@ -5,8 +5,7 @@
     },
     "batch": {
         ".codegen/cmds-workspace.go.tmpl": "cmd/workspace/cmd.go",
-        ".codegen/cmds-account.go.tmpl": "cmd/account/cmd.go",
+        ".codegen/cmds-account.go.tmpl": "cmd/account/cmd.go"
-        ".codegen/lookup.go.tmpl": "bundle/config/variable/lookup.go"
     },
     "toolchain": {
         "required": ["go"],

.codegen/lookup.go.tmpl

@@ -1,134 +0,0 @@
-// Code generated from OpenAPI specs by Databricks SDK Generator. DO NOT EDIT.
-
-package variable
-
-{{ $allowlist :=
-	list
-		"alerts"
-		"clusters"
-		"cluster-policies"
-		"clusters"
-		"dashboards"
-		"instance-pools"
-		"jobs"
-		"metastores"
-		"pipelines"
-		"service-principals"
-		"queries"
-		"warehouses"
-}}
-
-{{	$customField :=
-		dict
-			"service-principals" "ApplicationId"
-}}
-
-import (
-	"context"
-	"fmt"
-
-	"github.com/databricks/databricks-sdk-go"
-)
-
-type Lookup struct {
-	{{range .Services -}}
-	{{- if in $allowlist .KebabName -}}
-	{{.Singular.PascalName}} string `json:"{{.Singular.SnakeName}},omitempty"`
-
-	{{end}}
-	{{- end}}
-}
-
-func LookupFromMap(m map[string]any) *Lookup {
-	l := &Lookup{}
-	{{range .Services -}}
-	{{- if in $allowlist .KebabName -}}
-	if v, ok := m["{{.Singular.SnakeName}}"]; ok {
-		l.{{.Singular.PascalName}} = v.(string)
-	}
-	{{end -}}
-	{{- end}}
-	return l
-}
-
-func (l *Lookup) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
-	if err := l.validate(); err != nil {
-		return "", err
-	}
-
-	r := allResolvers()
-	{{range .Services -}}
-	{{- if in $allowlist .KebabName -}}
-	if l.{{.Singular.PascalName}} != "" {
-		return r.{{.Singular.PascalName}}(ctx, w, l.{{.Singular.PascalName}})
-	}
-	{{end -}}
-	{{- end}}
-
-	return "", fmt.Errorf("no valid lookup fields provided")
-}
-
-func (l *Lookup) String() string {
-	{{range .Services -}}
-	{{- if in $allowlist .KebabName -}}
-	if l.{{.Singular.PascalName}} != "" {
-		return fmt.Sprintf("{{.Singular.KebabName}}: %s", l.{{.Singular.PascalName}})
-	}
-	{{end -}}
-	{{- end}}
-	return ""
-}
-
-func (l *Lookup) validate() error {
-	// Validate that only one field is set
-	count := 0
-	{{range .Services -}}
-	{{- if in $allowlist .KebabName -}}
-	if l.{{.Singular.PascalName}} != "" {
-		count++
-	}
-	{{end -}}
-	{{- end}}
-
-	if count != 1 {
-		return fmt.Errorf("exactly one lookup field must be provided")
-	}
-
-	if strings.Contains(l.String(), "${var") {
-		return fmt.Errorf("lookup fields cannot contain variable references")
-	}
-
-	return nil
-}
-
-
-type resolverFunc func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error)
-type resolvers struct {
-	{{range .Services -}}
-	{{- if in $allowlist .KebabName -}}
-	{{.Singular.PascalName}} resolverFunc
-	{{end -}}
-	{{- end}}
-}
-
-func allResolvers() *resolvers {
-	r := &resolvers{}
-	{{range .Services -}}
-	{{- if in $allowlist .KebabName -}}
-	r.{{.Singular.PascalName}} = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["{{.Singular.PascalName}}"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.{{.PascalName}}.GetBy{{range .NamedIdMap.NamePath}}{{.PascalName}}{{end}}(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.{{ getOrDefault $customField .KebabName ((index .NamedIdMap.IdPath 0).PascalName) }}), nil
-	}
-	{{end -}}
-	{{- end}}
-
-	return r
-}

.gitattributes

@@ -1,4 +1,3 @@
-bundle/config/variable/lookup.go linguist-generated=true
 cmd/account/access-control/access-control.go linguist-generated=true
 cmd/account/billable-usage/billable-usage.go linguist-generated=true
 cmd/account/budgets/budgets.go linguist-generated=true

CHANGELOG.md

@@ -1,5 +1,28 @@
 # Version changelog
 
+## [Release] Release v0.235.0
+
+**Note:** the `bundle generate` command now uses the `.<resource-type>.yml`
+sub-extension for the configuration files it writes. Existing configuration
+files that do not use this sub-extension are renamed to include it.
+
+Bundles:
+ * Make `TableName` field part of quality monitor schema ([#1903](https://github.com/databricks/cli/pull/1903)).
+ * Do not prepend paths starting with ~ or variable reference ([#1905](https://github.com/databricks/cli/pull/1905)).
+ * Fix workspace extensions filer accidentally reading notebooks ([#1891](https://github.com/databricks/cli/pull/1891)).
+ * Fix template initialization when running on Databricks ([#1912](https://github.com/databricks/cli/pull/1912)).
+ * Source-linked deployments for bundles in the workspace ([#1884](https://github.com/databricks/cli/pull/1884)).
+ * Added integration test to deploy bundle to /Shared root path ([#1914](https://github.com/databricks/cli/pull/1914)).
+ * Update filenames used by bundle generate to use `.<resource-type>.yml` ([#1901](https://github.com/databricks/cli/pull/1901)).
+
+Internal:
+ * Extract functionality to detect if the CLI is running on DBR ([#1889](https://github.com/databricks/cli/pull/1889)).
+ * Consolidate test helpers for `io/fs` ([#1906](https://github.com/databricks/cli/pull/1906)).
+ * Use `fs.FS` interface to read template ([#1910](https://github.com/databricks/cli/pull/1910)).
+ * Use `filer.Filer` to write template instantiation ([#1911](https://github.com/databricks/cli/pull/1911)).
+
+
+
 ## [Release] Release v0.234.0
 
 Bundles:

bundle/config/mutator/apply_presets.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/databricks/cli/bundle"
 	"github.com/databricks/cli/bundle/config"
+	"github.com/databricks/cli/libs/dbr"
 	"github.com/databricks/cli/libs/diag"
 	"github.com/databricks/cli/libs/dyn"
 	"github.com/databricks/cli/libs/textutil"
@@ -221,6 +222,27 @@ func (m *applyPresets) Apply(ctx context.Context, b *bundle.Bundle) diag.Diagnos
 		dashboard.DisplayName = prefix + dashboard.DisplayName
 	}
 
+	if config.IsExplicitlyEnabled((b.Config.Presets.SourceLinkedDeployment)) {
+		isDatabricksWorkspace := dbr.RunsOnRuntime(ctx) && strings.HasPrefix(b.SyncRootPath, "/Workspace/")
+		if !isDatabricksWorkspace {
+			target := b.Config.Bundle.Target
+			path := dyn.NewPath(dyn.Key("targets"), dyn.Key(target), dyn.Key("presets"), dyn.Key("source_linked_deployment"))
+			diags = diags.Append(
+				diag.Diagnostic{
+					Severity: diag.Warning,
+					Summary:  "source-linked deployment is available only in the Databricks Workspace",
+					Paths: []dyn.Path{
+						path,
+					},
+					Locations: b.Config.GetLocations(path[2:].String()),
+				},
+			)
+
+			disabled := false
+			b.Config.Presets.SourceLinkedDeployment = &disabled
+		}
+	}
+
 	return diags
 }
 

bundle/config/mutator/apply_presets_test.go

@@ -2,12 +2,16 @@ package mutator_test
 
 import (
 	"context"
+	"runtime"
 	"testing"
 
 	"github.com/databricks/cli/bundle"
 	"github.com/databricks/cli/bundle/config"
 	"github.com/databricks/cli/bundle/config/mutator"
 	"github.com/databricks/cli/bundle/config/resources"
+	"github.com/databricks/cli/bundle/internal/bundletest"
+	"github.com/databricks/cli/libs/dbr"
+	"github.com/databricks/cli/libs/dyn"
 	"github.com/databricks/databricks-sdk-go/service/catalog"
 	"github.com/databricks/databricks-sdk-go/service/jobs"
 	"github.com/stretchr/testify/require"
@@ -364,3 +368,88 @@ func TestApplyPresetsResourceNotDefined(t *testing.T) {
 		})
 	}
 }
+
+func TestApplyPresetsSourceLinkedDeployment(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("this test is not applicable on Windows because source-linked mode works only in the Databricks Workspace")
+	}
+
+	testContext := context.Background()
+	enabled := true
+	disabled := false
+	workspacePath := "/Workspace/user.name@company.com"
+
+	tests := []struct {
+		bundlePath      string
+		ctx             context.Context
+		name            string
+		initialValue    *bool
+		expectedValue   *bool
+		expectedWarning string
+	}{
+		{
+			name:          "preset enabled, bundle in Workspace, databricks runtime",
+			bundlePath:    workspacePath,
+			ctx:           dbr.MockRuntime(testContext, true),
+			initialValue:  &enabled,
+			expectedValue: &enabled,
+		},
+		{
+			name:            "preset enabled, bundle not in Workspace, databricks runtime",
+			bundlePath:      "/Users/user.name@company.com",
+			ctx:             dbr.MockRuntime(testContext, true),
+			initialValue:    &enabled,
+			expectedValue:   &disabled,
+			expectedWarning: "source-linked deployment is available only in the Databricks Workspace",
+		},
+		{
+			name:            "preset enabled, bundle in Workspace, not databricks runtime",
+			bundlePath:      workspacePath,
+			ctx:             dbr.MockRuntime(testContext, false),
+			initialValue:    &enabled,
+			expectedValue:   &disabled,
+			expectedWarning: "source-linked deployment is available only in the Databricks Workspace",
+		},
+		{
+			name:          "preset disabled, bundle in Workspace, databricks runtime",
+			bundlePath:    workspacePath,
+			ctx:           dbr.MockRuntime(testContext, true),
+			initialValue:  &disabled,
+			expectedValue: &disabled,
+		},
+		{
+			name:          "preset nil, bundle in Workspace, databricks runtime",
+			bundlePath:    workspacePath,
+			ctx:           dbr.MockRuntime(testContext, true),
+			initialValue:  nil,
+			expectedValue: nil,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				SyncRootPath: tt.bundlePath,
+				Config: config.Root{
+					Presets: config.Presets{
+						SourceLinkedDeployment: tt.initialValue,
+					},
+				},
+			}
+
+			bundletest.SetLocation(b, "presets.source_linked_deployment", []dyn.Location{{File: "databricks.yml"}})
+			diags := bundle.Apply(tt.ctx, b, mutator.ApplyPresets())
+			if diags.HasError() {
+				t.Fatalf("unexpected error: %v", diags)
+			}
+
+			if tt.expectedWarning != "" {
+				require.Equal(t, tt.expectedWarning, diags[0].Summary)
+				require.NotEmpty(t, diags[0].Locations)
+			}
+
+			require.Equal(t, tt.expectedValue, b.Config.Presets.SourceLinkedDeployment)
+		})
+	}
+
+}

bundle/config/mutator/process_target_mode.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/databricks/cli/bundle"
 	"github.com/databricks/cli/bundle/config"
+	"github.com/databricks/cli/libs/dbr"
 	"github.com/databricks/cli/libs/diag"
 	"github.com/databricks/cli/libs/dyn"
 	"github.com/databricks/cli/libs/iamutil"
@@ -57,6 +58,14 @@ func transformDevelopmentMode(ctx context.Context, b *bundle.Bundle) {
 		t.TriggerPauseStatus = config.Paused
 	}
 
+	if !config.IsExplicitlyDisabled(t.SourceLinkedDeployment) {
+		isInWorkspace := strings.HasPrefix(b.SyncRootPath, "/Workspace/")
+		if isInWorkspace && dbr.RunsOnRuntime(ctx) {
+			enabled := true
+			t.SourceLinkedDeployment = &enabled
+		}
+	}
+
 	if !config.IsExplicitlyDisabled(t.PipelinesDevelopment) {
 		enabled := true
 		t.PipelinesDevelopment = &enabled

bundle/config/mutator/process_target_mode_test.go

@@ -3,14 +3,17 @@ package mutator
 import (
 	"context"
 	"reflect"
+	"runtime"
 	"strings"
 	"testing"
 
 	"github.com/databricks/cli/bundle"
 	"github.com/databricks/cli/bundle/config"
 	"github.com/databricks/cli/bundle/config/resources"
+	"github.com/databricks/cli/libs/dbr"
 	"github.com/databricks/cli/libs/diag"
 	"github.com/databricks/cli/libs/tags"
+	"github.com/databricks/cli/libs/vfs"
 	sdkconfig "github.com/databricks/databricks-sdk-go/config"
 	"github.com/databricks/databricks-sdk-go/service/catalog"
 	"github.com/databricks/databricks-sdk-go/service/compute"
@@ -140,6 +143,7 @@ func mockBundle(mode config.Mode) *bundle.Bundle {
 				},
 			},
 		},
+		SyncRoot: vfs.MustNew("/Users/lennart.kats@databricks.com"),
 		// Use AWS implementation for testing.
 		Tagging: tags.ForCloud(&sdkconfig.Config{
 			Host: "https://company.cloud.databricks.com",
@@ -522,3 +526,32 @@ func TestPipelinesDevelopmentDisabled(t *testing.T) {
 
 	assert.False(t, b.Config.Resources.Pipelines["pipeline1"].PipelineSpec.Development)
 }
+
+func TestSourceLinkedDeploymentEnabled(t *testing.T) {
+	b, diags := processSourceLinkedBundle(t, true)
+	require.NoError(t, diags.Error())
+	assert.True(t, *b.Config.Presets.SourceLinkedDeployment)
+}
+
+func TestSourceLinkedDeploymentDisabled(t *testing.T) {
+	b, diags := processSourceLinkedBundle(t, false)
+	require.NoError(t, diags.Error())
+	assert.False(t, *b.Config.Presets.SourceLinkedDeployment)
+}
+
+func processSourceLinkedBundle(t *testing.T, presetEnabled bool) (*bundle.Bundle, diag.Diagnostics) {
+	if runtime.GOOS == "windows" {
+		t.Skip("this test is not applicable on Windows because source-linked mode works only in the Databricks Workspace")
+	}
+
+	b := mockBundle(config.Development)
+
+	workspacePath := "/Workspace/lennart@company.com/"
+	b.SyncRootPath = workspacePath
+	b.Config.Presets.SourceLinkedDeployment = &presetEnabled
+
+	ctx := dbr.MockRuntime(context.Background(), true)
+	m := bundle.Seq(ProcessTargetMode(), ApplyPresets())
+	diags := bundle.Apply(ctx, b, m)
+	return b, diags
+}

bundle/config/mutator/translate_paths.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 
 	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/bundle/config"
 	"github.com/databricks/cli/libs/diag"
 	"github.com/databricks/cli/libs/dyn"
 	"github.com/databricks/cli/libs/notebook"
@@ -103,8 +104,13 @@ func (t *translateContext) rewritePath(
 		return fmt.Errorf("path %s is not contained in sync root path", localPath)
 	}
 
-	// Prefix remote path with its remote root path.
+	var workspacePath string
-	remotePath := path.Join(t.b.Config.Workspace.FilePath, filepath.ToSlash(localRelPath))
+	if config.IsExplicitlyEnabled(t.b.Config.Presets.SourceLinkedDeployment) {
+		workspacePath = t.b.SyncRootPath
+	} else {
+		workspacePath = t.b.Config.Workspace.FilePath
+	}
+	remotePath := path.Join(workspacePath, filepath.ToSlash(localRelPath))
 
 	// Convert local path into workspace path via specified function.
 	interp, err := fn(*p, localPath, localRelPath, remotePath)
@@ -120,8 +126,34 @@ func (t *translateContext) rewritePath(
 func (t *translateContext) translateNotebookPath(literal, localFullPath, localRelPath, remotePath string) (string, error) {
 	nb, _, err := notebook.DetectWithFS(t.b.SyncRoot, filepath.ToSlash(localRelPath))
 	if errors.Is(err, fs.ErrNotExist) {
+		if filepath.Ext(localFullPath) != notebook.ExtensionNone {
 			return "", fmt.Errorf("notebook %s not found", literal)
 		}
+
+		extensions := []string{
+			notebook.ExtensionPython,
+			notebook.ExtensionR,
+			notebook.ExtensionScala,
+			notebook.ExtensionSql,
+			notebook.ExtensionJupyter,
+		}
+
+		// Check whether a file with a notebook extension already exists. This
+		// way we can provide a more targeted error message.
+		for _, ext := range extensions {
+			literalWithExt := literal + ext
+			localRelPathWithExt := filepath.ToSlash(localRelPath + ext)
+			if _, err := fs.Stat(t.b.SyncRoot, localRelPathWithExt); err == nil {
+				return "", fmt.Errorf(`notebook %s not found. Did you mean %s?
+Local notebook references are expected to contain one of the following
+file extensions: [%s]`, literal, literalWithExt, strings.Join(extensions, ", "))
+			}
+		}
+
+		// Return a generic error message if no matching possible file is found.
+		return "", fmt.Errorf(`notebook %s not found. Local notebook references are expected
+to contain one of the following file extensions: [%s]`, literal, strings.Join(extensions, ", "))
+	}
 	if err != nil {
 		return "", fmt.Errorf("unable to determine if %s is a notebook: %w", localFullPath, err)
 	}

bundle/config/mutator/translate_paths_test.go

@@ -2,8 +2,10 @@ package mutator_test
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"testing"
 
@@ -507,6 +509,59 @@ func TestPipelineNotebookDoesNotExistError(t *testing.T) {
 	assert.EqualError(t, diags.Error(), "notebook ./doesnt_exist.py not found")
 }
 
+func TestPipelineNotebookDoesNotExistErrorWithoutExtension(t *testing.T) {
+	for _, ext := range []string{
+		".py",
+		".r",
+		".scala",
+		".sql",
+		".ipynb",
+		"",
+	} {
+		t.Run("case_"+ext, func(t *testing.T) {
+			dir := t.TempDir()
+
+			if ext != "" {
+				touchEmptyFile(t, filepath.Join(dir, "foo"+ext))
+			}
+
+			b := &bundle.Bundle{
+				SyncRootPath: dir,
+				SyncRoot:     vfs.MustNew(dir),
+				Config: config.Root{
+					Resources: config.Resources{
+						Pipelines: map[string]*resources.Pipeline{
+							"pipeline": {
+								PipelineSpec: &pipelines.PipelineSpec{
+									Libraries: []pipelines.PipelineLibrary{
+										{
+											Notebook: &pipelines.NotebookLibrary{
+												Path: "./foo",
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			bundletest.SetLocation(b, ".", []dyn.Location{{File: filepath.Join(dir, "fake.yml")}})
+			diags := bundle.Apply(context.Background(), b, mutator.TranslatePaths())
+
+			if ext == "" {
+				assert.EqualError(t, diags.Error(), `notebook ./foo not found. Local notebook references are expected
+to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb]`)
+			} else {
+				assert.EqualError(t, diags.Error(), fmt.Sprintf(`notebook ./foo not found. Did you mean ./foo%s?
+Local notebook references are expected to contain one of the following
+file extensions: [.py, .r, .scala, .sql, .ipynb]`, ext))
+			}
+		})
+	}
+}
+
 func TestPipelineFileDoesNotExistError(t *testing.T) {
 	dir := t.TempDir()
 
@@ -787,3 +842,163 @@ func TestTranslatePathWithComplexVariables(t *testing.T) {
 		b.Config.Resources.Jobs["job"].Tasks[0].Libraries[0].Whl,
 	)
 }
+
+func TestTranslatePathsWithSourceLinkedDeployment(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("this test is not applicable on Windows because source-linked mode works only in the Databricks Workspace")
+	}
+
+	dir := t.TempDir()
+	touchNotebookFile(t, filepath.Join(dir, "my_job_notebook.py"))
+	touchNotebookFile(t, filepath.Join(dir, "my_pipeline_notebook.py"))
+	touchEmptyFile(t, filepath.Join(dir, "my_python_file.py"))
+	touchEmptyFile(t, filepath.Join(dir, "dist", "task.jar"))
+	touchEmptyFile(t, filepath.Join(dir, "requirements.txt"))
+
+	enabled := true
+	b := &bundle.Bundle{
+		SyncRootPath: dir,
+		SyncRoot:     vfs.MustNew(dir),
+		Config: config.Root{
+			Workspace: config.Workspace{
+				FilePath: "/bundle",
+			},
+			Resources: config.Resources{
+				Jobs: map[string]*resources.Job{
+					"job": {
+						JobSettings: &jobs.JobSettings{
+							Tasks: []jobs.Task{
+								{
+									NotebookTask: &jobs.NotebookTask{
+										NotebookPath: "my_job_notebook.py",
+									},
+									Libraries: []compute.Library{
+										{Whl: "./dist/task.whl"},
+									},
+								},
+								{
+									NotebookTask: &jobs.NotebookTask{
+										NotebookPath: "/Users/jane.doe@databricks.com/absolute_remote.py",
+									},
+								},
+								{
+									NotebookTask: &jobs.NotebookTask{
+										NotebookPath: "my_job_notebook.py",
+									},
+									Libraries: []compute.Library{
+										{Requirements: "requirements.txt"},
+									},
+								},
+								{
+									SparkPythonTask: &jobs.SparkPythonTask{
+										PythonFile: "my_python_file.py",
+									},
+								},
+								{
+									SparkJarTask: &jobs.SparkJarTask{
+										MainClassName: "HelloWorld",
+									},
+									Libraries: []compute.Library{
+										{Jar: "./dist/task.jar"},
+									},
+								},
+								{
+									SparkJarTask: &jobs.SparkJarTask{
+										MainClassName: "HelloWorldRemote",
+									},
+									Libraries: []compute.Library{
+										{Jar: "dbfs:/bundle/dist/task_remote.jar"},
+									},
+								},
+							},
+						},
+					},
+				},
+				Pipelines: map[string]*resources.Pipeline{
+					"pipeline": {
+						PipelineSpec: &pipelines.PipelineSpec{
+							Libraries: []pipelines.PipelineLibrary{
+								{
+									Notebook: &pipelines.NotebookLibrary{
+										Path: "my_pipeline_notebook.py",
+									},
+								},
+								{
+									Notebook: &pipelines.NotebookLibrary{
+										Path: "/Users/jane.doe@databricks.com/absolute_remote.py",
+									},
+								},
+								{
+									File: &pipelines.FileLibrary{
+										Path: "my_python_file.py",
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			Presets: config.Presets{
+				SourceLinkedDeployment: &enabled,
+			},
+		},
+	}
+
+	bundletest.SetLocation(b, ".", []dyn.Location{{File: filepath.Join(dir, "resource.yml")}})
+	diags := bundle.Apply(context.Background(), b, mutator.TranslatePaths())
+	require.NoError(t, diags.Error())
+
+	// updated to source path
+	assert.Equal(
+		t,
+		filepath.Join(dir, "my_job_notebook"),
+		b.Config.Resources.Jobs["job"].Tasks[0].NotebookTask.NotebookPath,
+	)
+	assert.Equal(
+		t,
+		filepath.Join(dir, "requirements.txt"),
+		b.Config.Resources.Jobs["job"].Tasks[2].Libraries[0].Requirements,
+	)
+	assert.Equal(
+		t,
+		filepath.Join(dir, "my_python_file.py"),
+		b.Config.Resources.Jobs["job"].Tasks[3].SparkPythonTask.PythonFile,
+	)
+	assert.Equal(
+		t,
+		filepath.Join(dir, "my_pipeline_notebook"),
+		b.Config.Resources.Pipelines["pipeline"].Libraries[0].Notebook.Path,
+	)
+	assert.Equal(
+		t,
+		filepath.Join(dir, "my_python_file.py"),
+		b.Config.Resources.Pipelines["pipeline"].Libraries[2].File.Path,
+	)
+
+	// left as is
+	assert.Equal(
+		t,
+		filepath.Join("dist", "task.whl"),
+		b.Config.Resources.Jobs["job"].Tasks[0].Libraries[0].Whl,
+	)
+	assert.Equal(
+		t,
+		"/Users/jane.doe@databricks.com/absolute_remote.py",
+		b.Config.Resources.Jobs["job"].Tasks[1].NotebookTask.NotebookPath,
+	)
+	assert.Equal(
+		t,
+		filepath.Join("dist", "task.jar"),
+		b.Config.Resources.Jobs["job"].Tasks[4].Libraries[0].Jar,
+	)
+	assert.Equal(
+		t,
+		"dbfs:/bundle/dist/task_remote.jar",
+		b.Config.Resources.Jobs["job"].Tasks[5].Libraries[0].Jar,
+	)
+	assert.Equal(
+		t,
+		"/Users/jane.doe@databricks.com/absolute_remote.py",
+		b.Config.Resources.Pipelines["pipeline"].Libraries[1].Notebook.Path,
+	)
+}

bundle/config/presets.go

@@ -17,6 +17,11 @@ type Presets struct {
 	// JobsMaxConcurrentRuns is the default value for the max concurrent runs of jobs.
 	JobsMaxConcurrentRuns int `json:"jobs_max_concurrent_runs,omitempty"`
 
+	// SourceLinkedDeployment indicates whether source-linked deployment is enabled. Works only in Databricks Workspace
+	// When set to true, resources created during deployment will point to source files in the workspace instead of their workspace copies.
+	// File synchronization to ${workspace.file_path} is skipped.
+	SourceLinkedDeployment *bool `json:"source_linked_deployment,omitempty"`
+
 	// Tags to add to all resources.
 	Tags map[string]string `json:"tags,omitempty"`
 }

bundle/config/validate/files_to_sync.go

@@ -21,6 +21,12 @@ func (v *filesToSync) Name() string {
 }
 
 func (v *filesToSync) Apply(ctx context.Context, rb bundle.ReadOnlyBundle) diag.Diagnostics {
+	// The user may be intentional about not synchronizing any files.
+	// In this case, we should not show any warnings.
+	if len(rb.Config().Sync.Paths) == 0 {
+		return nil
+	}
+
 	sync, err := files.GetSync(ctx, rb)
 	if err != nil {
 		return diag.FromErr(err)
@@ -31,6 +37,7 @@ func (v *filesToSync) Apply(ctx context.Context, rb bundle.ReadOnlyBundle) diag.
 		return diag.FromErr(err)
 	}
 
+	// If there are files to sync, we don't need to show any warnings.
 	if len(fl) != 0 {
 		return nil
 	}

bundle/config/validate/files_to_sync_test.go

@@ -0,0 +1,105 @@
+package validate
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/bundle/config"
+	"github.com/databricks/cli/internal/testutil"
+	"github.com/databricks/cli/libs/diag"
+	"github.com/databricks/cli/libs/vfs"
+	sdkconfig "github.com/databricks/databricks-sdk-go/config"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/iam"
+	"github.com/databricks/databricks-sdk-go/service/workspace"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestFilesToSync_NoPaths(t *testing.T) {
+	b := &bundle.Bundle{
+		Config: config.Root{
+			Sync: config.Sync{
+				Paths: []string{},
+			},
+		},
+	}
+
+	ctx := context.Background()
+	rb := bundle.ReadOnly(b)
+	diags := bundle.ApplyReadOnly(ctx, rb, FilesToSync())
+	assert.Empty(t, diags)
+}
+
+func setupBundleForFilesToSyncTest(t *testing.T) *bundle.Bundle {
+	dir := t.TempDir()
+
+	testutil.Touch(t, dir, "file1")
+	testutil.Touch(t, dir, "file2")
+
+	b := &bundle.Bundle{
+		BundleRootPath: dir,
+		BundleRoot:     vfs.MustNew(dir),
+		SyncRootPath:   dir,
+		SyncRoot:       vfs.MustNew(dir),
+		Config: config.Root{
+			Bundle: config.Bundle{
+				Target: "default",
+			},
+			Workspace: config.Workspace{
+				FilePath: "/this/doesnt/matter",
+				CurrentUser: &config.User{
+					User: &iam.User{},
+				},
+			},
+			Sync: config.Sync{
+				// Paths are relative to [SyncRootPath].
+				Paths: []string{"."},
+			},
+		},
+	}
+
+	m := mocks.NewMockWorkspaceClient(t)
+	m.WorkspaceClient.Config = &sdkconfig.Config{
+		Host: "https://foo.com",
+	}
+
+	// The initialization logic in [sync.New] performs a check on the destination path.
+	// Removing this check at initialization time is tbd...
+	m.GetMockWorkspaceAPI().EXPECT().GetStatusByPath(mock.Anything, "/this/doesnt/matter").Return(&workspace.ObjectInfo{
+		ObjectType: workspace.ObjectTypeDirectory,
+	}, nil)
+
+	b.SetWorkpaceClient(m.WorkspaceClient)
+	return b
+}
+
+func TestFilesToSync_EverythingIgnored(t *testing.T) {
+	b := setupBundleForFilesToSyncTest(t)
+
+	// Ignore all files.
+	testutil.WriteFile(t, "*\n.*\n", b.BundleRootPath, ".gitignore")
+
+	ctx := context.Background()
+	rb := bundle.ReadOnly(b)
+	diags := bundle.ApplyReadOnly(ctx, rb, FilesToSync())
+	require.Equal(t, 1, len(diags))
+	assert.Equal(t, diag.Warning, diags[0].Severity)
+	assert.Equal(t, "There are no files to sync, please check your .gitignore", diags[0].Summary)
+}
+
+func TestFilesToSync_EverythingExcluded(t *testing.T) {
+	b := setupBundleForFilesToSyncTest(t)
+
+	// Exclude all files.
+	b.Config.Sync.Exclude = []string{"*"}
+
+	ctx := context.Background()
+	rb := bundle.ReadOnly(b)
+	diags := bundle.ApplyReadOnly(ctx, rb, FilesToSync())
+	require.Equal(t, 1, len(diags))
+	assert.Equal(t, diag.Warning, diags[0].Severity)
+	assert.Equal(t, "There are no files to sync, please check your .gitignore and sync.exclude configuration", diags[0].Summary)
+}

bundle/config/validate/single_node_cluster.go

@@ -0,0 +1,137 @@
+package validate
+
+import (
+	"context"
+	"strings"
+
+	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/libs/diag"
+	"github.com/databricks/cli/libs/dyn"
+	"github.com/databricks/cli/libs/dyn/convert"
+	"github.com/databricks/cli/libs/log"
+)
+
+// Validates that any single node clusters defined in the bundle are correctly configured.
+func SingleNodeCluster() bundle.ReadOnlyMutator {
+	return &singleNodeCluster{}
+}
+
+type singleNodeCluster struct{}
+
+func (m *singleNodeCluster) Name() string {
+	return "validate:SingleNodeCluster"
+}
+
+const singleNodeWarningDetail = `num_workers should be 0 only for single-node clusters. To create a
+valid single node cluster please ensure that the following properties
+are correctly set in the cluster specification:
+
+  spark_conf:
+    spark.databricks.cluster.profile: singleNode
+    spark.master: local[*]
+
+  custom_tags:
+    ResourceClass: SingleNode
+  `
+
+const singleNodeWarningSummary = `Single node cluster is not correctly configured`
+
+func showSingleNodeClusterWarning(ctx context.Context, v dyn.Value) bool {
+	// Check if the user has explicitly set the num_workers to 0. Skip the warning
+	// if that's not the case.
+	numWorkers, ok := v.Get("num_workers").AsInt()
+	if !ok || numWorkers > 0 {
+		return false
+	}
+
+	// Convenient type that contains the common fields from compute.ClusterSpec and
+	// pipelines.PipelineCluster that we are interested in.
+	type ClusterConf struct {
+		SparkConf  map[string]string `json:"spark_conf"`
+		CustomTags map[string]string `json:"custom_tags"`
+		PolicyId   string            `json:"policy_id"`
+	}
+
+	conf := &ClusterConf{}
+	err := convert.ToTyped(conf, v)
+	if err != nil {
+		return false
+	}
+
+	// If the policy id is set, we don't want to show the warning. This is because
+	// the user might have configured `spark_conf` and `custom_tags` correctly
+	// in their cluster policy.
+	if conf.PolicyId != "" {
+		return false
+	}
+
+	profile, ok := conf.SparkConf["spark.databricks.cluster.profile"]
+	if !ok {
+		log.Debugf(ctx, "spark_conf spark.databricks.cluster.profile not found in single-node cluster spec")
+		return true
+	}
+	if profile != "singleNode" {
+		log.Debugf(ctx, "spark_conf spark.databricks.cluster.profile is not singleNode in single-node cluster spec: %s", profile)
+		return true
+	}
+
+	master, ok := conf.SparkConf["spark.master"]
+	if !ok {
+		log.Debugf(ctx, "spark_conf spark.master not found in single-node cluster spec")
+		return true
+	}
+	if !strings.HasPrefix(master, "local") {
+		log.Debugf(ctx, "spark_conf spark.master does not start with local in single-node cluster spec: %s", master)
+		return true
+	}
+
+	resourceClass, ok := conf.CustomTags["ResourceClass"]
+	if !ok {
+		log.Debugf(ctx, "custom_tag ResourceClass not found in single-node cluster spec")
+		return true
+	}
+	if resourceClass != "SingleNode" {
+		log.Debugf(ctx, "custom_tag ResourceClass is not SingleNode in single-node cluster spec: %s", resourceClass)
+		return true
+	}
+
+	return false
+}
+
+func (m *singleNodeCluster) Apply(ctx context.Context, rb bundle.ReadOnlyBundle) diag.Diagnostics {
+	diags := diag.Diagnostics{}
+
+	patterns := []dyn.Pattern{
+		// Interactive clusters
+		dyn.NewPattern(dyn.Key("resources"), dyn.Key("clusters"), dyn.AnyKey()),
+		// Job clusters
+		dyn.NewPattern(dyn.Key("resources"), dyn.Key("jobs"), dyn.AnyKey(), dyn.Key("job_clusters"), dyn.AnyIndex(), dyn.Key("new_cluster")),
+		// Job task clusters
+		dyn.NewPattern(dyn.Key("resources"), dyn.Key("jobs"), dyn.AnyKey(), dyn.Key("tasks"), dyn.AnyIndex(), dyn.Key("new_cluster")),
+		// Job for each task clusters
+		dyn.NewPattern(dyn.Key("resources"), dyn.Key("jobs"), dyn.AnyKey(), dyn.Key("tasks"), dyn.AnyIndex(), dyn.Key("for_each_task"), dyn.Key("task"), dyn.Key("new_cluster")),
+		// Pipeline clusters
+		dyn.NewPattern(dyn.Key("resources"), dyn.Key("pipelines"), dyn.AnyKey(), dyn.Key("clusters"), dyn.AnyIndex()),
+	}
+
+	for _, p := range patterns {
+		_, err := dyn.MapByPattern(rb.Config().Value(), p, func(p dyn.Path, v dyn.Value) (dyn.Value, error) {
+			warning := diag.Diagnostic{
+				Severity:  diag.Warning,
+				Summary:   singleNodeWarningSummary,
+				Detail:    singleNodeWarningDetail,
+				Locations: v.Locations(),
+				Paths:     []dyn.Path{p},
+			}
+
+			if showSingleNodeClusterWarning(ctx, v) {
+				diags = append(diags, warning)
+			}
+			return v, nil
+		})
+		if err != nil {
+			log.Debugf(ctx, "Error while applying single node cluster validation: %s", err)
+		}
+	}
+	return diags
+}

bundle/config/validate/single_node_cluster_test.go

@@ -0,0 +1,566 @@
+package validate
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/bundle/config"
+	"github.com/databricks/cli/bundle/config/resources"
+	"github.com/databricks/cli/bundle/internal/bundletest"
+	"github.com/databricks/cli/libs/diag"
+	"github.com/databricks/cli/libs/dyn"
+	"github.com/databricks/databricks-sdk-go/service/compute"
+	"github.com/databricks/databricks-sdk-go/service/jobs"
+	"github.com/databricks/databricks-sdk-go/service/pipelines"
+	"github.com/stretchr/testify/assert"
+)
+
+func failCases() []struct {
+	name       string
+	sparkConf  map[string]string
+	customTags map[string]string
+} {
+	return []struct {
+		name       string
+		sparkConf  map[string]string
+		customTags map[string]string
+	}{
+		{
+			name: "no tags or conf",
+		},
+		{
+			name: "no tags",
+			sparkConf: map[string]string{
+				"spark.databricks.cluster.profile": "singleNode",
+				"spark.master":                     "local[*]",
+			},
+		},
+		{
+			name:       "no conf",
+			customTags: map[string]string{"ResourceClass": "SingleNode"},
+		},
+		{
+			name: "invalid spark cluster profile",
+			sparkConf: map[string]string{
+				"spark.databricks.cluster.profile": "invalid",
+				"spark.master":                     "local[*]",
+			},
+			customTags: map[string]string{"ResourceClass": "SingleNode"},
+		},
+		{
+			name: "invalid spark.master",
+			sparkConf: map[string]string{
+				"spark.databricks.cluster.profile": "singleNode",
+				"spark.master":                     "invalid",
+			},
+			customTags: map[string]string{"ResourceClass": "SingleNode"},
+		},
+		{
+			name: "invalid tags",
+			sparkConf: map[string]string{
+				"spark.databricks.cluster.profile": "singleNode",
+				"spark.master":                     "local[*]",
+			},
+			customTags: map[string]string{"ResourceClass": "invalid"},
+		},
+		{
+			name: "missing ResourceClass tag",
+			sparkConf: map[string]string{
+				"spark.databricks.cluster.profile": "singleNode",
+				"spark.master":                     "local[*]",
+			},
+			customTags: map[string]string{"what": "ever"},
+		},
+		{
+			name: "missing spark.master",
+			sparkConf: map[string]string{
+				"spark.databricks.cluster.profile": "singleNode",
+			},
+			customTags: map[string]string{"ResourceClass": "SingleNode"},
+		},
+		{
+			name: "missing spark.databricks.cluster.profile",
+			sparkConf: map[string]string{
+				"spark.master": "local[*]",
+			},
+			customTags: map[string]string{"ResourceClass": "SingleNode"},
+		},
+	}
+}
+
+func TestValidateSingleNodeClusterFailForInteractiveClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range failCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Clusters: map[string]*resources.Cluster{
+							"foo": {
+								ClusterSpec: &compute.ClusterSpec{
+									SparkConf:  tc.sparkConf,
+									CustomTags: tc.customTags,
+								},
+							},
+						},
+					},
+				},
+			}
+
+			bundletest.SetLocation(b, "resources.clusters.foo", []dyn.Location{{File: "a.yml", Line: 1, Column: 1}})
+
+			// We can't set num_workers to 0 explicitly in the typed configuration.
+			// Do it on the dyn.Value directly.
+			bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+				return dyn.Set(v, "resources.clusters.foo.num_workers", dyn.V(0))
+			})
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Equal(t, diag.Diagnostics{
+				{
+					Severity:  diag.Warning,
+					Summary:   singleNodeWarningSummary,
+					Detail:    singleNodeWarningDetail,
+					Locations: []dyn.Location{{File: "a.yml", Line: 1, Column: 1}},
+					Paths:     []dyn.Path{dyn.NewPath(dyn.Key("resources"), dyn.Key("clusters"), dyn.Key("foo"))},
+				},
+			}, diags)
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterFailForJobClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range failCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Jobs: map[string]*resources.Job{
+							"foo": {
+								JobSettings: &jobs.JobSettings{
+									JobClusters: []jobs.JobCluster{
+										{
+											NewCluster: compute.ClusterSpec{
+												ClusterName: "my_cluster",
+												SparkConf:   tc.sparkConf,
+												CustomTags:  tc.customTags,
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			bundletest.SetLocation(b, "resources.jobs.foo.job_clusters[0].new_cluster", []dyn.Location{{File: "b.yml", Line: 1, Column: 1}})
+
+			// We can't set num_workers to 0 explicitly in the typed configuration.
+			// Do it on the dyn.Value directly.
+			bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+				return dyn.Set(v, "resources.jobs.foo.job_clusters[0].new_cluster.num_workers", dyn.V(0))
+			})
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Equal(t, diag.Diagnostics{
+				{
+					Severity:  diag.Warning,
+					Summary:   singleNodeWarningSummary,
+					Detail:    singleNodeWarningDetail,
+					Locations: []dyn.Location{{File: "b.yml", Line: 1, Column: 1}},
+					Paths:     []dyn.Path{dyn.MustPathFromString("resources.jobs.foo.job_clusters[0].new_cluster")},
+				},
+			}, diags)
+
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterFailForJobTaskClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range failCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Jobs: map[string]*resources.Job{
+							"foo": {
+								JobSettings: &jobs.JobSettings{
+									Tasks: []jobs.Task{
+										{
+											NewCluster: &compute.ClusterSpec{
+												ClusterName: "my_cluster",
+												SparkConf:   tc.sparkConf,
+												CustomTags:  tc.customTags,
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			bundletest.SetLocation(b, "resources.jobs.foo.tasks[0].new_cluster", []dyn.Location{{File: "c.yml", Line: 1, Column: 1}})
+
+			// We can't set num_workers to 0 explicitly in the typed configuration.
+			// Do it on the dyn.Value directly.
+			bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+				return dyn.Set(v, "resources.jobs.foo.tasks[0].new_cluster.num_workers", dyn.V(0))
+			})
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Equal(t, diag.Diagnostics{
+				{
+					Severity:  diag.Warning,
+					Summary:   singleNodeWarningSummary,
+					Detail:    singleNodeWarningDetail,
+					Locations: []dyn.Location{{File: "c.yml", Line: 1, Column: 1}},
+					Paths:     []dyn.Path{dyn.MustPathFromString("resources.jobs.foo.tasks[0].new_cluster")},
+				},
+			}, diags)
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterFailForPipelineClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range failCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Pipelines: map[string]*resources.Pipeline{
+							"foo": {
+								PipelineSpec: &pipelines.PipelineSpec{
+									Clusters: []pipelines.PipelineCluster{
+										{
+											SparkConf:  tc.sparkConf,
+											CustomTags: tc.customTags,
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			bundletest.SetLocation(b, "resources.pipelines.foo.clusters[0]", []dyn.Location{{File: "d.yml", Line: 1, Column: 1}})
+
+			// We can't set num_workers to 0 explicitly in the typed configuration.
+			// Do it on the dyn.Value directly.
+			bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+				return dyn.Set(v, "resources.pipelines.foo.clusters[0].num_workers", dyn.V(0))
+			})
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Equal(t, diag.Diagnostics{
+				{
+					Severity:  diag.Warning,
+					Summary:   singleNodeWarningSummary,
+					Detail:    singleNodeWarningDetail,
+					Locations: []dyn.Location{{File: "d.yml", Line: 1, Column: 1}},
+					Paths:     []dyn.Path{dyn.MustPathFromString("resources.pipelines.foo.clusters[0]")},
+				},
+			}, diags)
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterFailForJobForEachTaskCluster(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range failCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Jobs: map[string]*resources.Job{
+							"foo": {
+								JobSettings: &jobs.JobSettings{
+									Tasks: []jobs.Task{
+										{
+											ForEachTask: &jobs.ForEachTask{
+												Task: jobs.Task{
+													NewCluster: &compute.ClusterSpec{
+														ClusterName: "my_cluster",
+														SparkConf:   tc.sparkConf,
+														CustomTags:  tc.customTags,
+													},
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			bundletest.SetLocation(b, "resources.jobs.foo.tasks[0].for_each_task.task.new_cluster", []dyn.Location{{File: "e.yml", Line: 1, Column: 1}})
+
+			// We can't set num_workers to 0 explicitly in the typed configuration.
+			// Do it on the dyn.Value directly.
+			bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+				return dyn.Set(v, "resources.jobs.foo.tasks[0].for_each_task.task.new_cluster.num_workers", dyn.V(0))
+			})
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Equal(t, diag.Diagnostics{
+				{
+					Severity:  diag.Warning,
+					Summary:   singleNodeWarningSummary,
+					Detail:    singleNodeWarningDetail,
+					Locations: []dyn.Location{{File: "e.yml", Line: 1, Column: 1}},
+					Paths:     []dyn.Path{dyn.MustPathFromString("resources.jobs.foo.tasks[0].for_each_task.task.new_cluster")},
+				},
+			}, diags)
+		})
+	}
+}
+
+func passCases() []struct {
+	name       string
+	numWorkers *int
+	sparkConf  map[string]string
+	customTags map[string]string
+	policyId   string
+} {
+	zero := 0
+	one := 1
+
+	return []struct {
+		name       string
+		numWorkers *int
+		sparkConf  map[string]string
+		customTags map[string]string
+		policyId   string
+	}{
+		{
+			name: "single node cluster",
+			sparkConf: map[string]string{
+				"spark.databricks.cluster.profile": "singleNode",
+				"spark.master":                     "local[*]",
+			},
+			customTags: map[string]string{
+				"ResourceClass": "SingleNode",
+			},
+			numWorkers: &zero,
+		},
+		{
+			name:       "num workers is not zero",
+			numWorkers: &one,
+		},
+		{
+			name: "num workers is not set",
+		},
+		{
+			name:       "policy id is not empty",
+			policyId:   "policy-abc",
+			numWorkers: &zero,
+		},
+	}
+}
+
+func TestValidateSingleNodeClusterPassInteractiveClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range passCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Clusters: map[string]*resources.Cluster{
+							"foo": {
+								ClusterSpec: &compute.ClusterSpec{
+									SparkConf:  tc.sparkConf,
+									CustomTags: tc.customTags,
+									PolicyId:   tc.policyId,
+								},
+							},
+						},
+					},
+				},
+			}
+
+			if tc.numWorkers != nil {
+				bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+					return dyn.Set(v, "resources.clusters.foo.num_workers", dyn.V(*tc.numWorkers))
+				})
+			}
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Empty(t, diags)
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterPassJobClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range passCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Jobs: map[string]*resources.Job{
+							"foo": {
+								JobSettings: &jobs.JobSettings{
+									JobClusters: []jobs.JobCluster{
+										{
+											NewCluster: compute.ClusterSpec{
+												ClusterName: "my_cluster",
+												SparkConf:   tc.sparkConf,
+												CustomTags:  tc.customTags,
+												PolicyId:    tc.policyId,
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			if tc.numWorkers != nil {
+				bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+					return dyn.Set(v, "resources.jobs.foo.job_clusters[0].new_cluster.num_workers", dyn.V(*tc.numWorkers))
+				})
+			}
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Empty(t, diags)
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterPassJobTaskClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range passCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Jobs: map[string]*resources.Job{
+							"foo": {
+								JobSettings: &jobs.JobSettings{
+									Tasks: []jobs.Task{
+										{
+											NewCluster: &compute.ClusterSpec{
+												ClusterName: "my_cluster",
+												SparkConf:   tc.sparkConf,
+												CustomTags:  tc.customTags,
+												PolicyId:    tc.policyId,
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			if tc.numWorkers != nil {
+				bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+					return dyn.Set(v, "resources.jobs.foo.tasks[0].new_cluster.num_workers", dyn.V(*tc.numWorkers))
+				})
+			}
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Empty(t, diags)
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterPassPipelineClusters(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range passCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Pipelines: map[string]*resources.Pipeline{
+							"foo": {
+								PipelineSpec: &pipelines.PipelineSpec{
+									Clusters: []pipelines.PipelineCluster{
+										{
+											SparkConf:  tc.sparkConf,
+											CustomTags: tc.customTags,
+											PolicyId:   tc.policyId,
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			if tc.numWorkers != nil {
+				bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+					return dyn.Set(v, "resources.pipelines.foo.clusters[0].num_workers", dyn.V(*tc.numWorkers))
+				})
+			}
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Empty(t, diags)
+		})
+	}
+}
+
+func TestValidateSingleNodeClusterPassJobForEachTaskCluster(t *testing.T) {
+	ctx := context.Background()
+
+	for _, tc := range passCases() {
+		t.Run(tc.name, func(t *testing.T) {
+			b := &bundle.Bundle{
+				Config: config.Root{
+					Resources: config.Resources{
+						Jobs: map[string]*resources.Job{
+							"foo": {
+								JobSettings: &jobs.JobSettings{
+									Tasks: []jobs.Task{
+										{
+											ForEachTask: &jobs.ForEachTask{
+												Task: jobs.Task{
+													NewCluster: &compute.ClusterSpec{
+														ClusterName: "my_cluster",
+														SparkConf:   tc.sparkConf,
+														CustomTags:  tc.customTags,
+														PolicyId:    tc.policyId,
+													},
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+			}
+
+			if tc.numWorkers != nil {
+				bundletest.Mutate(t, b, func(v dyn.Value) (dyn.Value, error) {
+					return dyn.Set(v, "resources.jobs.foo.tasks[0].for_each_task.task.new_cluster.num_workers", dyn.V(*tc.numWorkers))
+				})
+			}
+
+			diags := bundle.ApplyReadOnly(ctx, bundle.ReadOnly(b), SingleNodeCluster())
+			assert.Empty(t, diags)
+		})
+	}
+}

bundle/config/validate/validate.go

@@ -36,6 +36,7 @@ func (v *validate) Apply(ctx context.Context, b *bundle.Bundle) diag.Diagnostics
 		ValidateSyncPatterns(),
 		JobTaskClusterSpec(),
 		ValidateFolderPermissions(),
+		SingleNodeCluster(),
 	))
 }
 

bundle/config/variable/lookup.go

@@ -1,11 +1,8 @@
-// Code generated from OpenAPI specs by Databricks SDK Generator. DO NOT EDIT.
-
 package variable
 
 import (
 	"context"
 	"fmt"
-	"strings"
 
 	"github.com/databricks/databricks-sdk-go"
 )
@@ -25,6 +22,8 @@ type Lookup struct {
 
 	Metastore string `json:"metastore,omitempty"`
 
+	NotificationDestination string `json:"notification_destination,omitempty"`
+
 	Pipeline string `json:"pipeline,omitempty"`
 
 	Query string `json:"query,omitempty"`
@@ -34,323 +33,78 @@ type Lookup struct {
 	Warehouse string `json:"warehouse,omitempty"`
 }
 
-func LookupFromMap(m map[string]any) *Lookup {
+type resolver interface {
-	l := &Lookup{}
+	// Resolve resolves the underlying entity's ID.
-	if v, ok := m["alert"]; ok {
+	Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error)
-		l.Alert = v.(string)
+
-	}
+	// String returns a human-readable representation of the resolver.
-	if v, ok := m["cluster_policy"]; ok {
+	String() string
-		l.ClusterPolicy = v.(string)
-	}
-	if v, ok := m["cluster"]; ok {
-		l.Cluster = v.(string)
-	}
-	if v, ok := m["dashboard"]; ok {
-		l.Dashboard = v.(string)
-	}
-	if v, ok := m["instance_pool"]; ok {
-		l.InstancePool = v.(string)
-	}
-	if v, ok := m["job"]; ok {
-		l.Job = v.(string)
-	}
-	if v, ok := m["metastore"]; ok {
-		l.Metastore = v.(string)
-	}
-	if v, ok := m["pipeline"]; ok {
-		l.Pipeline = v.(string)
-	}
-	if v, ok := m["query"]; ok {
-		l.Query = v.(string)
-	}
-	if v, ok := m["service_principal"]; ok {
-		l.ServicePrincipal = v.(string)
-	}
-	if v, ok := m["warehouse"]; ok {
-		l.Warehouse = v.(string)
 }
 
-	return l
+func (l *Lookup) constructResolver() (resolver, error) {
+	var resolvers []resolver
+
+	if l.Alert != "" {
+		resolvers = append(resolvers, resolveAlert{name: l.Alert})
+	}
+	if l.ClusterPolicy != "" {
+		resolvers = append(resolvers, resolveClusterPolicy{name: l.ClusterPolicy})
+	}
+	if l.Cluster != "" {
+		resolvers = append(resolvers, resolveCluster{name: l.Cluster})
+	}
+	if l.Dashboard != "" {
+		resolvers = append(resolvers, resolveDashboard{name: l.Dashboard})
+	}
+	if l.InstancePool != "" {
+		resolvers = append(resolvers, resolveInstancePool{name: l.InstancePool})
+	}
+	if l.Job != "" {
+		resolvers = append(resolvers, resolveJob{name: l.Job})
+	}
+	if l.Metastore != "" {
+		resolvers = append(resolvers, resolveMetastore{name: l.Metastore})
+	}
+	if l.NotificationDestination != "" {
+		resolvers = append(resolvers, resolveNotificationDestination{name: l.NotificationDestination})
+	}
+	if l.Pipeline != "" {
+		resolvers = append(resolvers, resolvePipeline{name: l.Pipeline})
+	}
+	if l.Query != "" {
+		resolvers = append(resolvers, resolveQuery{name: l.Query})
+	}
+	if l.ServicePrincipal != "" {
+		resolvers = append(resolvers, resolveServicePrincipal{name: l.ServicePrincipal})
+	}
+	if l.Warehouse != "" {
+		resolvers = append(resolvers, resolveWarehouse{name: l.Warehouse})
+	}
+
+	switch len(resolvers) {
+	case 0:
+		return nil, fmt.Errorf("no valid lookup fields provided")
+	case 1:
+		return resolvers[0], nil
+	default:
+		return nil, fmt.Errorf("exactly one lookup field must be provided")
+	}
 }
 
 func (l *Lookup) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
-	if err := l.validate(); err != nil {
+	r, err := l.constructResolver()
+	if err != nil {
 		return "", err
 	}
 
-	r := allResolvers()
+	return r.Resolve(ctx, w)
-	if l.Alert != "" {
-		return r.Alert(ctx, w, l.Alert)
-	}
-	if l.ClusterPolicy != "" {
-		return r.ClusterPolicy(ctx, w, l.ClusterPolicy)
-	}
-	if l.Cluster != "" {
-		return r.Cluster(ctx, w, l.Cluster)
-	}
-	if l.Dashboard != "" {
-		return r.Dashboard(ctx, w, l.Dashboard)
-	}
-	if l.InstancePool != "" {
-		return r.InstancePool(ctx, w, l.InstancePool)
-	}
-	if l.Job != "" {
-		return r.Job(ctx, w, l.Job)
-	}
-	if l.Metastore != "" {
-		return r.Metastore(ctx, w, l.Metastore)
-	}
-	if l.Pipeline != "" {
-		return r.Pipeline(ctx, w, l.Pipeline)
-	}
-	if l.Query != "" {
-		return r.Query(ctx, w, l.Query)
-	}
-	if l.ServicePrincipal != "" {
-		return r.ServicePrincipal(ctx, w, l.ServicePrincipal)
-	}
-	if l.Warehouse != "" {
-		return r.Warehouse(ctx, w, l.Warehouse)
-	}
-
-	return "", fmt.Errorf("no valid lookup fields provided")
 }
 
 func (l *Lookup) String() string {
-	if l.Alert != "" {
+	r, _ := l.constructResolver()
-		return fmt.Sprintf("alert: %s", l.Alert)
+	if r == nil {
-	}
-	if l.ClusterPolicy != "" {
-		return fmt.Sprintf("cluster-policy: %s", l.ClusterPolicy)
-	}
-	if l.Cluster != "" {
-		return fmt.Sprintf("cluster: %s", l.Cluster)
-	}
-	if l.Dashboard != "" {
-		return fmt.Sprintf("dashboard: %s", l.Dashboard)
-	}
-	if l.InstancePool != "" {
-		return fmt.Sprintf("instance-pool: %s", l.InstancePool)
-	}
-	if l.Job != "" {
-		return fmt.Sprintf("job: %s", l.Job)
-	}
-	if l.Metastore != "" {
-		return fmt.Sprintf("metastore: %s", l.Metastore)
-	}
-	if l.Pipeline != "" {
-		return fmt.Sprintf("pipeline: %s", l.Pipeline)
-	}
-	if l.Query != "" {
-		return fmt.Sprintf("query: %s", l.Query)
-	}
-	if l.ServicePrincipal != "" {
-		return fmt.Sprintf("service-principal: %s", l.ServicePrincipal)
-	}
-	if l.Warehouse != "" {
-		return fmt.Sprintf("warehouse: %s", l.Warehouse)
-	}
-
 		return ""
 	}
 
-func (l *Lookup) validate() error {
+	return r.String()
-	// Validate that only one field is set
-	count := 0
-	if l.Alert != "" {
-		count++
-	}
-	if l.ClusterPolicy != "" {
-		count++
-	}
-	if l.Cluster != "" {
-		count++
-	}
-	if l.Dashboard != "" {
-		count++
-	}
-	if l.InstancePool != "" {
-		count++
-	}
-	if l.Job != "" {
-		count++
-	}
-	if l.Metastore != "" {
-		count++
-	}
-	if l.Pipeline != "" {
-		count++
-	}
-	if l.Query != "" {
-		count++
-	}
-	if l.ServicePrincipal != "" {
-		count++
-	}
-	if l.Warehouse != "" {
-		count++
-	}
-
-	if count != 1 {
-		return fmt.Errorf("exactly one lookup field must be provided")
-	}
-
-	if strings.Contains(l.String(), "${var") {
-		return fmt.Errorf("lookup fields cannot contain variable references")
-	}
-
-	return nil
-}
-
-type resolverFunc func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error)
-type resolvers struct {
-	Alert            resolverFunc
-	ClusterPolicy    resolverFunc
-	Cluster          resolverFunc
-	Dashboard        resolverFunc
-	InstancePool     resolverFunc
-	Job              resolverFunc
-	Metastore        resolverFunc
-	Pipeline         resolverFunc
-	Query            resolverFunc
-	ServicePrincipal resolverFunc
-	Warehouse        resolverFunc
-}
-
-func allResolvers() *resolvers {
-	r := &resolvers{}
-	r.Alert = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Alert"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Alerts.GetByDisplayName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.Id), nil
-	}
-	r.ClusterPolicy = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["ClusterPolicy"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.ClusterPolicies.GetByName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.PolicyId), nil
-	}
-	r.Cluster = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Cluster"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Clusters.GetByClusterName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.ClusterId), nil
-	}
-	r.Dashboard = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Dashboard"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Dashboards.GetByName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.Id), nil
-	}
-	r.InstancePool = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["InstancePool"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.InstancePools.GetByInstancePoolName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.InstancePoolId), nil
-	}
-	r.Job = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Job"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Jobs.GetBySettingsName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.JobId), nil
-	}
-	r.Metastore = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Metastore"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Metastores.GetByName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.MetastoreId), nil
-	}
-	r.Pipeline = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Pipeline"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Pipelines.GetByName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.PipelineId), nil
-	}
-	r.Query = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Query"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Queries.GetByDisplayName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.Id), nil
-	}
-	r.ServicePrincipal = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["ServicePrincipal"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.ServicePrincipals.GetByDisplayName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.ApplicationId), nil
-	}
-	r.Warehouse = func(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
-		fn, ok := lookupOverrides["Warehouse"]
-		if ok {
-			return fn(ctx, w, name)
-		}
-		entity, err := w.Warehouses.GetByName(ctx, name)
-		if err != nil {
-			return "", err
-		}
-
-		return fmt.Sprint(entity.Id), nil
-	}
-
-	return r
 }

bundle/config/variable/lookup_test.go

@@ -0,0 +1,60 @@
+package variable
+
+import (
+	"context"
+	"reflect"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLookup_Coverage(t *testing.T) {
+	var lookup Lookup
+	val := reflect.ValueOf(lookup)
+	typ := val.Type()
+
+	for i := 0; i < val.NumField(); i++ {
+		field := val.Field(i)
+		if field.Kind() != reflect.String {
+			t.Fatalf("Field %s is not a string", typ.Field(i).Name)
+		}
+
+		fieldType := typ.Field(i)
+		t.Run(fieldType.Name, func(t *testing.T) {
+			// Use a fresh instance of the struct in each test
+			var lookup Lookup
+
+			// Set the field to a non-empty string
+			reflect.ValueOf(&lookup).Elem().Field(i).SetString("value")
+
+			// Test the [String] function
+			assert.NotEmpty(t, lookup.String())
+		})
+	}
+}
+
+func TestLookup_Empty(t *testing.T) {
+	var lookup Lookup
+
+	// Resolve returns an error when no fields are provided
+	_, err := lookup.Resolve(context.Background(), nil)
+	assert.ErrorContains(t, err, "no valid lookup fields provided")
+
+	// No string representation for an invalid lookup
+	assert.Empty(t, lookup.String())
+
+}
+
+func TestLookup_Multiple(t *testing.T) {
+	lookup := Lookup{
+		Alert: "alert",
+		Query: "query",
+	}
+
+	// Resolve returns an error when multiple fields are provided
+	_, err := lookup.Resolve(context.Background(), nil)
+	assert.ErrorContains(t, err, "exactly one lookup field must be provided")
+
+	// No string representation for an invalid lookup
+	assert.Empty(t, lookup.String())
+}

bundle/config/variable/resolve_alert.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveAlert struct {
+	name string
+}
+
+func (l resolveAlert) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.Alerts.GetByDisplayName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.Id), nil
+}
+
+func (l resolveAlert) String() string {
+	return fmt.Sprintf("alert: %s", l.name)
+}

bundle/config/variable/resolve_alert_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/sql"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveAlert_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockAlertsAPI()
+	api.EXPECT().
+		GetByDisplayName(mock.Anything, "alert").
+		Return(&sql.ListAlertsResponseAlert{
+			Id: "1234",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveAlert{name: "alert"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "1234", result)
+}
+
+func TestResolveAlert_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockAlertsAPI()
+	api.EXPECT().
+		GetByDisplayName(mock.Anything, "alert").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveAlert{name: "alert"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveAlert_String(t *testing.T) {
+	l := resolveAlert{name: "name"}
+	assert.Equal(t, "alert: name", l.String())
+}

bundle/config/variable/resolve_cluster.go

@@ -8,13 +8,13 @@ import (
 	"github.com/databricks/databricks-sdk-go/service/compute"
 )
 
-var lookupOverrides = map[string]resolverFunc{
+type resolveCluster struct {
-	"Cluster": resolveCluster,
+	name string
 }
 
 // We added a custom resolver for the cluster to add filtering for the cluster source when we list all clusters.
 // Without the filtering listing could take a very long time (5-10 mins) which leads to lookup timeouts.
-func resolveCluster(ctx context.Context, w *databricks.WorkspaceClient, name string) (string, error) {
+func (l resolveCluster) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
 	result, err := w.Clusters.ListAll(ctx, compute.ListClustersRequest{
 		FilterBy: &compute.ListClustersFilterBy{
 			ClusterSources: []compute.ClusterSource{compute.ClusterSourceApi, compute.ClusterSourceUi},
@@ -30,6 +30,8 @@ func resolveCluster(ctx context.Context, w *databricks.WorkspaceClient, name str
 		key := v.ClusterName
 		tmp[key] = append(tmp[key], v)
 	}
+
+	name := l.name
 	alternatives, ok := tmp[name]
 	if !ok || len(alternatives) == 0 {
 		return "", fmt.Errorf("cluster named '%s' does not exist", name)
@@ -39,3 +41,7 @@ func resolveCluster(ctx context.Context, w *databricks.WorkspaceClient, name str
 	}
 	return alternatives[0].ClusterId, nil
 }
+
+func (l resolveCluster) String() string {
+	return fmt.Sprintf("cluster: %s", l.name)
+}

bundle/config/variable/resolve_cluster_policy.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveClusterPolicy struct {
+	name string
+}
+
+func (l resolveClusterPolicy) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.ClusterPolicies.GetByName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.PolicyId), nil
+}
+
+func (l resolveClusterPolicy) String() string {
+	return fmt.Sprintf("cluster-policy: %s", l.name)
+}

bundle/config/variable/resolve_cluster_policy_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/compute"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveClusterPolicy_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockClusterPoliciesAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "policy").
+		Return(&compute.Policy{
+			PolicyId: "1234",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveClusterPolicy{name: "policy"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "1234", result)
+}
+
+func TestResolveClusterPolicy_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockClusterPoliciesAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "policy").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveClusterPolicy{name: "policy"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveClusterPolicy_String(t *testing.T) {
+	l := resolveClusterPolicy{name: "name"}
+	assert.Equal(t, "cluster-policy: name", l.String())
+}

bundle/config/variable/resolve_cluster_test.go

@@ -0,0 +1,50 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/compute"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveCluster_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockClustersAPI()
+	api.EXPECT().
+		ListAll(mock.Anything, mock.Anything).
+		Return([]compute.ClusterDetails{
+			{ClusterId: "1234", ClusterName: "cluster1"},
+			{ClusterId: "2345", ClusterName: "cluster2"},
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveCluster{name: "cluster2"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "2345", result)
+}
+
+func TestResolveCluster_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockClustersAPI()
+	api.EXPECT().
+		ListAll(mock.Anything, mock.Anything).
+		Return([]compute.ClusterDetails{}, nil)
+
+	ctx := context.Background()
+	l := resolveCluster{name: "cluster"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "cluster named 'cluster' does not exist")
+}
+
+func TestResolveCluster_String(t *testing.T) {
+	l := resolveCluster{name: "name"}
+	assert.Equal(t, "cluster: name", l.String())
+}

bundle/config/variable/resolve_dashboard.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveDashboard struct {
+	name string
+}
+
+func (l resolveDashboard) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.Dashboards.GetByName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.Id), nil
+}
+
+func (l resolveDashboard) String() string {
+	return fmt.Sprintf("dashboard: %s", l.name)
+}

bundle/config/variable/resolve_dashboard_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/sql"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveDashboard_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockDashboardsAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "dashboard").
+		Return(&sql.Dashboard{
+			Id: "1234",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveDashboard{name: "dashboard"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "1234", result)
+}
+
+func TestResolveDashboard_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockDashboardsAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "dashboard").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveDashboard{name: "dashboard"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveDashboard_String(t *testing.T) {
+	l := resolveDashboard{name: "name"}
+	assert.Equal(t, "dashboard: name", l.String())
+}

bundle/config/variable/resolve_instance_pool.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveInstancePool struct {
+	name string
+}
+
+func (l resolveInstancePool) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.InstancePools.GetByInstancePoolName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.InstancePoolId), nil
+}
+
+func (l resolveInstancePool) String() string {
+	return fmt.Sprintf("instance-pool: %s", l.name)
+}

bundle/config/variable/resolve_instance_pool_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/compute"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveInstancePool_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockInstancePoolsAPI()
+	api.EXPECT().
+		GetByInstancePoolName(mock.Anything, "instance_pool").
+		Return(&compute.InstancePoolAndStats{
+			InstancePoolId: "5678",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveInstancePool{name: "instance_pool"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "5678", result)
+}
+
+func TestResolveInstancePool_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockInstancePoolsAPI()
+	api.EXPECT().
+		GetByInstancePoolName(mock.Anything, "instance_pool").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveInstancePool{name: "instance_pool"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveInstancePool_String(t *testing.T) {
+	l := resolveInstancePool{name: "name"}
+	assert.Equal(t, "instance-pool: name", l.String())
+}

bundle/config/variable/resolve_job.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveJob struct {
+	name string
+}
+
+func (l resolveJob) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.Jobs.GetBySettingsName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.JobId), nil
+}
+
+func (l resolveJob) String() string {
+	return fmt.Sprintf("job: %s", l.name)
+}

bundle/config/variable/resolve_job_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/jobs"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveJob_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockJobsAPI()
+	api.EXPECT().
+		GetBySettingsName(mock.Anything, "job").
+		Return(&jobs.BaseJob{
+			JobId: 5678,
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveJob{name: "job"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "5678", result)
+}
+
+func TestResolveJob_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockJobsAPI()
+	api.EXPECT().
+		GetBySettingsName(mock.Anything, "job").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveJob{name: "job"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveJob_String(t *testing.T) {
+	l := resolveJob{name: "name"}
+	assert.Equal(t, "job: name", l.String())
+}

bundle/config/variable/resolve_metastore.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveMetastore struct {
+	name string
+}
+
+func (l resolveMetastore) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.Metastores.GetByName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.MetastoreId), nil
+}
+
+func (l resolveMetastore) String() string {
+	return fmt.Sprintf("metastore: %s", l.name)
+}

bundle/config/variable/resolve_metastore_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/catalog"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveMetastore_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockMetastoresAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "metastore").
+		Return(&catalog.MetastoreInfo{
+			MetastoreId: "abcd",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveMetastore{name: "metastore"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "abcd", result)
+}
+
+func TestResolveMetastore_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockMetastoresAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "metastore").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveMetastore{name: "metastore"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveMetastore_String(t *testing.T) {
+	l := resolveMetastore{name: "name"}
+	assert.Equal(t, "metastore: name", l.String())
+}

bundle/config/variable/resolve_notification_destination.go

@@ -0,0 +1,46 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+	"github.com/databricks/databricks-sdk-go/service/settings"
+)
+
+type resolveNotificationDestination struct {
+	name string
+}
+
+func (l resolveNotificationDestination) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	result, err := w.NotificationDestinations.ListAll(ctx, settings.ListNotificationDestinationsRequest{
+		// The default page size for this API is 20.
+		// We use a higher value to make fewer API calls.
+		PageSize: 200,
+	})
+	if err != nil {
+		return "", err
+	}
+
+	// Collect all notification destinations with the given name.
+	var entities []settings.ListNotificationDestinationsResult
+	for _, entity := range result {
+		if entity.DisplayName == l.name {
+			entities = append(entities, entity)
+		}
+	}
+
+	// Return the ID of the first matching notification destination.
+	switch len(entities) {
+	case 0:
+		return "", fmt.Errorf("notification destination named %q does not exist", l.name)
+	case 1:
+		return entities[0].Id, nil
+	default:
+		return "", fmt.Errorf("there are %d instances of clusters named %q", len(entities), l.name)
+	}
+}
+
+func (l resolveNotificationDestination) String() string {
+	return fmt.Sprintf("notification-destination: %s", l.name)
+}

bundle/config/variable/resolve_notification_destination_test.go

@@ -0,0 +1,82 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/settings"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveNotificationDestination_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockNotificationDestinationsAPI()
+	api.EXPECT().
+		ListAll(mock.Anything, mock.Anything).
+		Return([]settings.ListNotificationDestinationsResult{
+			{Id: "1234", DisplayName: "destination"},
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveNotificationDestination{name: "destination"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "1234", result)
+}
+
+func TestResolveNotificationDestination_ResolveError(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockNotificationDestinationsAPI()
+	api.EXPECT().
+		ListAll(mock.Anything, mock.Anything).
+		Return(nil, fmt.Errorf("bad"))
+
+	ctx := context.Background()
+	l := resolveNotificationDestination{name: "destination"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	assert.ErrorContains(t, err, "bad")
+}
+
+func TestResolveNotificationDestination_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockNotificationDestinationsAPI()
+	api.EXPECT().
+		ListAll(mock.Anything, mock.Anything).
+		Return([]settings.ListNotificationDestinationsResult{}, nil)
+
+	ctx := context.Background()
+	l := resolveNotificationDestination{name: "destination"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.Error(t, err)
+	assert.ErrorContains(t, err, `notification destination named "destination" does not exist`)
+}
+
+func TestResolveNotificationDestination_ResolveMultiple(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockNotificationDestinationsAPI()
+	api.EXPECT().
+		ListAll(mock.Anything, mock.Anything).
+		Return([]settings.ListNotificationDestinationsResult{
+			{Id: "1234", DisplayName: "destination"},
+			{Id: "5678", DisplayName: "destination"},
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveNotificationDestination{name: "destination"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.Error(t, err)
+	assert.ErrorContains(t, err, `there are 2 instances of clusters named "destination"`)
+}
+
+func TestResolveNotificationDestination_String(t *testing.T) {
+	l := resolveNotificationDestination{name: "name"}
+	assert.Equal(t, "notification-destination: name", l.String())
+}

bundle/config/variable/resolve_pipeline.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolvePipeline struct {
+	name string
+}
+
+func (l resolvePipeline) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.Pipelines.GetByName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.PipelineId), nil
+}
+
+func (l resolvePipeline) String() string {
+	return fmt.Sprintf("pipeline: %s", l.name)
+}

bundle/config/variable/resolve_pipeline_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/pipelines"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolvePipeline_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockPipelinesAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "pipeline").
+		Return(&pipelines.PipelineStateInfo{
+			PipelineId: "abcd",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolvePipeline{name: "pipeline"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "abcd", result)
+}
+
+func TestResolvePipeline_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockPipelinesAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "pipeline").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolvePipeline{name: "pipeline"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolvePipeline_String(t *testing.T) {
+	l := resolvePipeline{name: "name"}
+	assert.Equal(t, "pipeline: name", l.String())
+}

bundle/config/variable/resolve_query.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveQuery struct {
+	name string
+}
+
+func (l resolveQuery) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.Queries.GetByDisplayName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.Id), nil
+}
+
+func (l resolveQuery) String() string {
+	return fmt.Sprintf("query: %s", l.name)
+}

bundle/config/variable/resolve_query_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/sql"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveQuery_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockQueriesAPI()
+	api.EXPECT().
+		GetByDisplayName(mock.Anything, "query").
+		Return(&sql.ListQueryObjectsResponseQuery{
+			Id: "1234",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveQuery{name: "query"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "1234", result)
+}
+
+func TestResolveQuery_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockQueriesAPI()
+	api.EXPECT().
+		GetByDisplayName(mock.Anything, "query").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveQuery{name: "query"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveQuery_String(t *testing.T) {
+	l := resolveQuery{name: "name"}
+	assert.Equal(t, "query: name", l.String())
+}

bundle/config/variable/resolve_service_principal.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveServicePrincipal struct {
+	name string
+}
+
+func (l resolveServicePrincipal) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.ServicePrincipals.GetByDisplayName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.ApplicationId), nil
+}
+
+func (l resolveServicePrincipal) String() string {
+	return fmt.Sprintf("service-principal: %s", l.name)
+}

bundle/config/variable/resolve_service_principal_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/iam"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveServicePrincipal_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockServicePrincipalsAPI()
+	api.EXPECT().
+		GetByDisplayName(mock.Anything, "service-principal").
+		Return(&iam.ServicePrincipal{
+			ApplicationId: "5678",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveServicePrincipal{name: "service-principal"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "5678", result)
+}
+
+func TestResolveServicePrincipal_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockServicePrincipalsAPI()
+	api.EXPECT().
+		GetByDisplayName(mock.Anything, "service-principal").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveServicePrincipal{name: "service-principal"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveServicePrincipal_String(t *testing.T) {
+	l := resolveServicePrincipal{name: "name"}
+	assert.Equal(t, "service-principal: name", l.String())
+}

bundle/config/variable/resolve_warehouse.go

@@ -0,0 +1,24 @@
+package variable
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/databricks/databricks-sdk-go"
+)
+
+type resolveWarehouse struct {
+	name string
+}
+
+func (l resolveWarehouse) Resolve(ctx context.Context, w *databricks.WorkspaceClient) (string, error) {
+	entity, err := w.Warehouses.GetByName(ctx, l.name)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprint(entity.Id), nil
+}
+
+func (l resolveWarehouse) String() string {
+	return fmt.Sprintf("warehouse: %s", l.name)
+}

bundle/config/variable/resolve_warehouse_test.go

@@ -0,0 +1,49 @@
+package variable
+
+import (
+	"context"
+	"testing"
+
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/experimental/mocks"
+	"github.com/databricks/databricks-sdk-go/service/sql"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolveWarehouse_ResolveSuccess(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockWarehousesAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "warehouse").
+		Return(&sql.EndpointInfo{
+			Id: "abcd",
+		}, nil)
+
+	ctx := context.Background()
+	l := resolveWarehouse{name: "warehouse"}
+	result, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.NoError(t, err)
+	assert.Equal(t, "abcd", result)
+}
+
+func TestResolveWarehouse_ResolveNotFound(t *testing.T) {
+	m := mocks.NewMockWorkspaceClient(t)
+
+	api := m.GetMockWarehousesAPI()
+	api.EXPECT().
+		GetByName(mock.Anything, "warehouse").
+		Return(nil, &apierr.APIError{StatusCode: 404})
+
+	ctx := context.Background()
+	l := resolveWarehouse{name: "warehouse"}
+	_, err := l.Resolve(ctx, m.WorkspaceClient)
+	require.ErrorIs(t, err, apierr.ErrNotFound)
+}
+
+func TestResolveWarehouse_String(t *testing.T) {
+	l := resolveWarehouse{name: "name"}
+	assert.Equal(t, "warehouse: name", l.String())
+}

bundle/deploy/files/upload.go

@@ -7,6 +7,7 @@ import (
 	"io/fs"
 
 	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/bundle/config"
 	"github.com/databricks/cli/bundle/permissions"
 	"github.com/databricks/cli/libs/cmdio"
 	"github.com/databricks/cli/libs/diag"
@@ -23,6 +24,11 @@ func (m *upload) Name() string {
 }
 
 func (m *upload) Apply(ctx context.Context, b *bundle.Bundle) diag.Diagnostics {
+	if config.IsExplicitlyEnabled(b.Config.Presets.SourceLinkedDeployment) {
+		cmdio.LogString(ctx, "Source-linked deployment is enabled. Deployed resources reference the source files in your working tree instead of separate copies.")
+		return nil
+	}
+
 	cmdio.LogString(ctx, fmt.Sprintf("Uploading bundle files to %s...", b.Config.Workspace.FilePath))
 	opts, err := GetSyncOptions(ctx, bundle.ReadOnly(b))
 	if err != nil {

bundle/trampoline/python_dbr_warning.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/bundle/config"
 	"github.com/databricks/cli/bundle/libraries"
 	"github.com/databricks/cli/libs/diag"
 	"github.com/databricks/cli/libs/log"
@@ -22,6 +23,9 @@ func WrapperWarning() bundle.Mutator {
 
 func (m *wrapperWarning) Apply(ctx context.Context, b *bundle.Bundle) diag.Diagnostics {
 	if isPythonWheelWrapperOn(b) {
+		if config.IsExplicitlyEnabled(b.Config.Presets.SourceLinkedDeployment) {
+			return diag.Warningf("Python wheel notebook wrapper is not available when using source-linked deployment mode. You can disable this mode by setting 'presets.source_linked_deployment: false'")
+		}
 		return nil
 	}
 

cmd/bundle/generate/generate_test.go

@@ -3,8 +3,10 @@ package generate
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"testing"
@@ -90,7 +92,7 @@ func TestGeneratePipelineCommand(t *testing.T) {
 	err := cmd.RunE(cmd, []string{})
 	require.NoError(t, err)
 
-	data, err := os.ReadFile(filepath.Join(configDir, "test_pipeline.yml"))
+	data, err := os.ReadFile(filepath.Join(configDir, "test_pipeline.pipeline.yml"))
 	require.NoError(t, err)
 	require.Equal(t, fmt.Sprintf(`resources:
   pipelines:
@@ -186,7 +188,123 @@ func TestGenerateJobCommand(t *testing.T) {
 	err := cmd.RunE(cmd, []string{})
 	require.NoError(t, err)
 
-	data, err := os.ReadFile(filepath.Join(configDir, "test_job.yml"))
+	data, err := os.ReadFile(filepath.Join(configDir, "test_job.job.yml"))
+	require.NoError(t, err)
+
+	require.Equal(t, fmt.Sprintf(`resources:
+  jobs:
+    test_job:
+      name: test-job
+      job_clusters:
+        - new_cluster:
+            custom_tags:
+              "Tag1": "24X7-1234"
+        - new_cluster:
+            spark_conf:
+              "spark.databricks.delta.preview.enabled": "true"
+      tasks:
+        - task_key: notebook_task
+          notebook_task:
+            notebook_path: %s
+      parameters:
+        - name: empty
+          default: ""
+`, filepath.Join("..", "src", "notebook.py")), string(data))
+
+	data, err = os.ReadFile(filepath.Join(srcDir, "notebook.py"))
+	require.NoError(t, err)
+	require.Equal(t, "# Databricks notebook source\nNotebook content", string(data))
+}
+
+func touchEmptyFile(t *testing.T, path string) {
+	err := os.MkdirAll(filepath.Dir(path), 0700)
+	require.NoError(t, err)
+	f, err := os.Create(path)
+	require.NoError(t, err)
+	f.Close()
+}
+
+func TestGenerateJobCommandOldFileRename(t *testing.T) {
+	cmd := NewGenerateJobCommand()
+
+	root := t.TempDir()
+	b := &bundle.Bundle{
+		BundleRootPath: root,
+	}
+
+	m := mocks.NewMockWorkspaceClient(t)
+	b.SetWorkpaceClient(m.WorkspaceClient)
+
+	jobsApi := m.GetMockJobsAPI()
+	jobsApi.EXPECT().Get(mock.Anything, jobs.GetJobRequest{JobId: 1234}).Return(&jobs.Job{
+		Settings: &jobs.JobSettings{
+			Name: "test-job",
+			JobClusters: []jobs.JobCluster{
+				{NewCluster: compute.ClusterSpec{
+					CustomTags: map[string]string{
+						"Tag1": "24X7-1234",
+					},
+				}},
+				{NewCluster: compute.ClusterSpec{
+					SparkConf: map[string]string{
+						"spark.databricks.delta.preview.enabled": "true",
+					},
+				}},
+			},
+			Tasks: []jobs.Task{
+				{
+					TaskKey: "notebook_task",
+					NotebookTask: &jobs.NotebookTask{
+						NotebookPath: "/test/notebook",
+					},
+				},
+			},
+			Parameters: []jobs.JobParameterDefinition{
+				{
+					Name:    "empty",
+					Default: "",
+				},
+			},
+		},
+	}, nil)
+
+	workspaceApi := m.GetMockWorkspaceAPI()
+	workspaceApi.EXPECT().GetStatusByPath(mock.Anything, "/test/notebook").Return(&workspace.ObjectInfo{
+		ObjectType: workspace.ObjectTypeNotebook,
+		Language:   workspace.LanguagePython,
+		Path:       "/test/notebook",
+	}, nil)
+
+	notebookContent := io.NopCloser(bytes.NewBufferString("# Databricks notebook source\nNotebook content"))
+	workspaceApi.EXPECT().Download(mock.Anything, "/test/notebook", mock.Anything).Return(notebookContent, nil)
+
+	cmd.SetContext(bundle.Context(context.Background(), b))
+	cmd.Flag("existing-job-id").Value.Set("1234")
+
+	configDir := filepath.Join(root, "resources")
+	cmd.Flag("config-dir").Value.Set(configDir)
+
+	srcDir := filepath.Join(root, "src")
+	cmd.Flag("source-dir").Value.Set(srcDir)
+
+	var key string
+	cmd.Flags().StringVar(&key, "key", "test_job", "")
+
+	// Create an old generated file first
+	oldFilename := filepath.Join(configDir, "test_job.yml")
+	touchEmptyFile(t, oldFilename)
+
+	// Having an existing files require --force flag to regenerate them
+	cmd.Flag("force").Value.Set("true")
+
+	err := cmd.RunE(cmd, []string{})
+	require.NoError(t, err)
+
+	// Make sure file do not exists after the run
+	_, err = os.Stat(oldFilename)
+	require.True(t, errors.Is(err, fs.ErrNotExist))
+
+	data, err := os.ReadFile(filepath.Join(configDir, "test_job.job.yml"))
 	require.NoError(t, err)
 
 	require.Equal(t, fmt.Sprintf(`resources:

cmd/bundle/generate/job.go

@@ -1,7 +1,9 @@
 package generate
 
 import (
+	"errors"
 	"fmt"
+	"io/fs"
 	"os"
 	"path/filepath"
 
@@ -83,7 +85,17 @@ func NewGenerateJobCommand() *cobra.Command {
 			return err
 		}
 
-		filename := filepath.Join(configDir, fmt.Sprintf("%s.yml", jobKey))
+		oldFilename := filepath.Join(configDir, fmt.Sprintf("%s.yml", jobKey))
+		filename := filepath.Join(configDir, fmt.Sprintf("%s.job.yml", jobKey))
+
+		// User might continuously run generate command to update their bundle jobs with any changes made in Databricks UI.
+		// Due to changing in the generated file names, we need to first rename existing resource file to the new name.
+		// Otherwise users can end up with duplicated resources.
+		err = os.Rename(oldFilename, filename)
+		if err != nil && !errors.Is(err, fs.ErrNotExist) {
+			return fmt.Errorf("failed to rename file %s. DABs uses the resource type as a sub-extension for generated content, please rename it to %s, err: %w", oldFilename, filename, err)
+		}
+
 		saver := yamlsaver.NewSaverWithStyle(map[string]yaml.Style{
 			// Including all JobSettings and nested fields which are map[string]string type
 			"spark_conf":  yaml.DoubleQuotedStyle,

cmd/bundle/generate/pipeline.go

@@ -1,7 +1,9 @@
 package generate
 
 import (
+	"errors"
 	"fmt"
+	"io/fs"
 	"os"
 	"path/filepath"
 
@@ -83,7 +85,17 @@ func NewGeneratePipelineCommand() *cobra.Command {
 			return err
 		}
 
-		filename := filepath.Join(configDir, fmt.Sprintf("%s.yml", pipelineKey))
+		oldFilename := filepath.Join(configDir, fmt.Sprintf("%s.yml", pipelineKey))
+		filename := filepath.Join(configDir, fmt.Sprintf("%s.pipeline.yml", pipelineKey))
+
+		// User might continuously run generate command to update their bundle jobs with any changes made in Databricks UI.
+		// Due to changing in the generated file names, we need to first rename existing resource file to the new name.
+		// Otherwise users can end up with duplicated resources.
+		err = os.Rename(oldFilename, filename)
+		if err != nil && !errors.Is(err, fs.ErrNotExist) {
+			return fmt.Errorf("failed to rename file %s. DABs uses the resource type as a sub-extension for generated content, please rename it to %s, err: %w", oldFilename, filename, err)
+		}
+
 		saver := yamlsaver.NewSaverWithStyle(
 			// Including all PipelineSpec and nested fields which are map[string]string type
 			map[string]yaml.Style{

cmd/bundle/init.go

@@ -1,8 +1,10 @@
 package bundle
 
 import (
+	"context"
 	"errors"
 	"fmt"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"slices"
@@ -10,6 +12,8 @@ import (
 
 	"github.com/databricks/cli/cmd/root"
 	"github.com/databricks/cli/libs/cmdio"
+	"github.com/databricks/cli/libs/dbr"
+	"github.com/databricks/cli/libs/filer"
 	"github.com/databricks/cli/libs/git"
 	"github.com/databricks/cli/libs/template"
 	"github.com/spf13/cobra"
@@ -109,6 +113,24 @@ func getUrlForNativeTemplate(name string) string {
 	return ""
 }
 
+func getFsForNativeTemplate(name string) (fs.FS, error) {
+	builtin, err := template.Builtin()
+	if err != nil {
+		return nil, err
+	}
+
+	// If this is a built-in template, the return value will be non-nil.
+	var templateFS fs.FS
+	for _, entry := range builtin {
+		if entry.Name == name {
+			templateFS = entry.FS
+			break
+		}
+	}
+
+	return templateFS, nil
+}
+
 func isRepoUrl(url string) bool {
 	result := false
 	for _, prefix := range gitUrlPrefixes {
@@ -128,6 +150,26 @@ func repoName(url string) string {
 	return parts[len(parts)-1]
 }
 
+func constructOutputFiler(ctx context.Context, outputDir string) (filer.Filer, error) {
+	outputDir, err := filepath.Abs(outputDir)
+	if err != nil {
+		return nil, err
+	}
+
+	// If the CLI is running on DBR and we're writing to the workspace file system,
+	// use the extension-aware workspace filesystem filer to instantiate the template.
+	//
+	// It is not possible to write notebooks through the workspace filesystem's FUSE mount.
+	// Therefore this is the only way we can initialize templates that contain notebooks
+	// when running the CLI on DBR and initializing a template to the workspace.
+	//
+	if strings.HasPrefix(outputDir, "/Workspace/") && dbr.RunsOnRuntime(ctx) {
+		return filer.NewWorkspaceFilesExtensionsClient(root.WorkspaceClient(ctx), outputDir)
+	}
+
+	return filer.NewLocalClient(outputDir)
+}
+
 func newInitCommand() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "init [TEMPLATE_PATH]",
@@ -182,6 +224,11 @@ See https://docs.databricks.com/en/dev-tools/bundles/templates.html for more inf
 			templatePath = getNativeTemplateByDescription(description)
 		}
 
+		outputFiler, err := constructOutputFiler(ctx, outputDir)
+		if err != nil {
+			return err
+		}
+
 		if templatePath == customTemplate {
 			cmdio.LogString(ctx, "Please specify a path or Git repository to use a custom template.")
 			cmdio.LogString(ctx, "See https://docs.databricks.com/en/dev-tools/bundles/templates.html to learn more about custom templates.")
@@ -198,9 +245,20 @@ See https://docs.databricks.com/en/dev-tools/bundles/templates.html for more inf
 			if templateDir != "" {
 				return errors.New("--template-dir can only be used with a Git repository URL")
 			}
+
+			templateFS, err := getFsForNativeTemplate(templatePath)
+			if err != nil {
+				return err
+			}
+
+			// If this is not a built-in template, then it must be a local file system path.
+			if templateFS == nil {
+				templateFS = os.DirFS(templatePath)
+			}
+
 			// skip downloading the repo because input arg is not a URL. We assume
 			// it's a path on the local file system in that case
-			return template.Materialize(ctx, configFile, templatePath, outputDir)
+			return template.Materialize(ctx, configFile, templateFS, outputFiler)
 		}
 
 		// Create a temporary directory with the name of the repository.  The '*'
@@ -224,7 +282,8 @@ See https://docs.databricks.com/en/dev-tools/bundles/templates.html for more inf
 
 		// Clean up downloaded repository once the template is materialized.
 		defer os.RemoveAll(repoDir)
-		return template.Materialize(ctx, configFile, filepath.Join(repoDir, templateDir), outputDir)
+		templateFS := os.DirFS(filepath.Join(repoDir, templateDir))
+		return template.Materialize(ctx, configFile, templateFS, outputFiler)
 	}
 	return cmd
 }

internal/bundle/bind_resource_test.go

@@ -166,7 +166,7 @@ func TestAccGenerateAndBind(t *testing.T) {
 	_, err = os.Stat(filepath.Join(bundleRoot, "src", "test.py"))
 	require.NoError(t, err)
 
-	matches, err := filepath.Glob(filepath.Join(bundleRoot, "resources", "test_job_key.yml"))
+	matches, err := filepath.Glob(filepath.Join(bundleRoot, "resources", "test_job_key.job.yml"))
 	require.NoError(t, err)
 
 	require.Len(t, matches, 1)

internal/bundle/bundles/basic/databricks_template_schema.json

@@ -11,6 +11,11 @@
         "node_type_id": {
             "type": "string",
             "description": "Node type id for job cluster"
+        },
+        "root_path": {
+            "type": "string",
+            "description": "Root path to deploy bundle to",
+            "default": ""
         }
     }
 }

internal/bundle/bundles/basic/template/databricks.yml.tmpl

@@ -2,7 +2,11 @@ bundle:
   name: basic
 
 workspace:
+  {{ if .root_path }}
+  root_path: "{{.root_path}}/.bundle/{{.unique_id}}"
+  {{ else }}
   root_path: "~/.bundle/{{.unique_id}}"
+  {{ end }}
 
 resources:
   jobs:

internal/bundle/bundles/empty_bundle/databricks.yml

@@ -1,2 +0,0 @@
-bundle:
-  name: abc

internal/bundle/bundles/recreate_pipeline/template/databricks.yml.tmpl

@@ -1,5 +1,8 @@
 bundle:
-  name: "bundle-playground"
+  name: recreate-pipeline
+
+workspace:
+  root_path: "~/.bundle/{{.unique_id}}"
 
 variables:
   catalog:

internal/bundle/bundles/uc_schema/template/databricks.yml.tmpl

@@ -1,5 +1,8 @@
 bundle:
-  name: "bundle-playground"
+  name: uc-schema
+
+workspace:
+  root_path: "~/.bundle/{{.unique_id}}"
 
 resources:
   pipelines:

internal/bundle/deploy_to_shared_test.go

@@ -0,0 +1,38 @@
+package bundle
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/databricks/cli/internal"
+	"github.com/databricks/cli/internal/acc"
+	"github.com/databricks/cli/libs/env"
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAccDeployBasicToSharedWorkspacePath(t *testing.T) {
+	ctx, wt := acc.WorkspaceTest(t)
+
+	nodeTypeId := internal.GetNodeTypeId(env.Get(ctx, "CLOUD_ENV"))
+	uniqueId := uuid.New().String()
+
+	currentUser, err := wt.W.CurrentUser.Me(ctx)
+	require.NoError(t, err)
+
+	bundleRoot, err := initTestTemplate(t, ctx, "basic", map[string]any{
+		"unique_id":     uniqueId,
+		"node_type_id":  nodeTypeId,
+		"spark_version": defaultSparkVersion,
+		"root_path":     fmt.Sprintf("/Shared/%s", currentUser.UserName),
+	})
+	require.NoError(t, err)
+
+	t.Cleanup(func() {
+		err = destroyBundle(wt.T, ctx, bundleRoot)
+		require.NoError(wt.T, err)
+	})
+
+	err = deployBundle(wt.T, ctx, bundleRoot)
+	require.NoError(wt.T, err)
+}

internal/bundle/helpers.go

@@ -16,6 +16,7 @@ import (
 	"github.com/databricks/cli/internal"
 	"github.com/databricks/cli/libs/cmdio"
 	"github.com/databricks/cli/libs/env"
+	"github.com/databricks/cli/libs/filer"
 	"github.com/databricks/cli/libs/flags"
 	"github.com/databricks/cli/libs/template"
 	"github.com/databricks/cli/libs/vfs"
@@ -42,7 +43,9 @@ func initTestTemplateWithBundleRoot(t *testing.T, ctx context.Context, templateN
 	cmd := cmdio.NewIO(flags.OutputJSON, strings.NewReader(""), os.Stdout, os.Stderr, "", "bundles")
 	ctx = cmdio.InContext(ctx, cmd)
 
-	err = template.Materialize(ctx, configFilePath, templateRoot, bundleRoot)
+	out, err := filer.NewLocalClient(bundleRoot)
+	require.NoError(t, err)
+	err = template.Materialize(ctx, configFilePath, os.DirFS(templateRoot), out)
 	return bundleRoot, err
 }
 

internal/filer_test.go

@@ -723,6 +723,63 @@ func TestAccWorkspaceFilesExtensionsDirectoriesAreNotNotebooks(t *testing.T) {
 	assert.ErrorIs(t, err, fs.ErrNotExist)
 }
 
+func TestAccWorkspaceFilesExtensionsNotebooksAreNotReadAsFiles(t *testing.T) {
+	t.Parallel()
+
+	ctx := context.Background()
+	wf, _ := setupWsfsExtensionsFiler(t)
+
+	// Create a notebook
+	err := wf.Write(ctx, "foo.ipynb", strings.NewReader(readFile(t, "testdata/notebooks/py1.ipynb")))
+	require.NoError(t, err)
+
+	// Reading foo should fail. Even though the WSFS name for the notebook is foo
+	// reading the notebook should only work with the .ipynb extension.
+	_, err = wf.Read(ctx, "foo")
+	assert.ErrorIs(t, err, fs.ErrNotExist)
+
+	_, err = wf.Read(ctx, "foo.ipynb")
+	assert.NoError(t, err)
+}
+
+func TestAccWorkspaceFilesExtensionsNotebooksAreNotStatAsFiles(t *testing.T) {
+	t.Parallel()
+
+	ctx := context.Background()
+	wf, _ := setupWsfsExtensionsFiler(t)
+
+	// Create a notebook
+	err := wf.Write(ctx, "foo.ipynb", strings.NewReader(readFile(t, "testdata/notebooks/py1.ipynb")))
+	require.NoError(t, err)
+
+	// Stating foo should fail. Even though the WSFS name for the notebook is foo
+	// stating the notebook should only work with the .ipynb extension.
+	_, err = wf.Stat(ctx, "foo")
+	assert.ErrorIs(t, err, fs.ErrNotExist)
+
+	_, err = wf.Stat(ctx, "foo.ipynb")
+	assert.NoError(t, err)
+}
+
+func TestAccWorkspaceFilesExtensionsNotebooksAreNotDeletedAsFiles(t *testing.T) {
+	t.Parallel()
+
+	ctx := context.Background()
+	wf, _ := setupWsfsExtensionsFiler(t)
+
+	// Create a notebook
+	err := wf.Write(ctx, "foo.ipynb", strings.NewReader(readFile(t, "testdata/notebooks/py1.ipynb")))
+	require.NoError(t, err)
+
+	// Deleting foo should fail. Even though the WSFS name for the notebook is foo
+	// deleting the notebook should only work with the .ipynb extension.
+	err = wf.Delete(ctx, "foo")
+	assert.ErrorIs(t, err, fs.ErrNotExist)
+
+	err = wf.Delete(ctx, "foo.ipynb")
+	assert.NoError(t, err)
+}
+
 func TestAccWorkspaceFilesExtensions_ExportFormatIsPreserved(t *testing.T) {
 	t.Parallel()
 

internal/init_test.go

@@ -97,7 +97,7 @@ func TestAccBundleInitOnMlopsStacks(t *testing.T) {
 	require.NoError(t, err)
 	job, err := w.Jobs.GetByJobId(context.Background(), batchJobId)
 	assert.NoError(t, err)
-	assert.Equal(t, fmt.Sprintf("dev-%s-batch-inference-job", projectName), job.Settings.Name)
+	assert.Contains(t, job.Settings.Name, fmt.Sprintf("dev-%s-batch-inference-job", projectName))
 }
 
 func TestAccBundleInitHelpers(t *testing.T) {

libs/filer/filer.go

@@ -7,13 +7,24 @@ import (
 	"io/fs"
 )
 
+// WriteMode captures intent when writing a file.
+//
+// The first 9 bits are reserved for the [fs.FileMode] permission bits.
+// These are used only by the local filer implementation and have
+// no effect for the other implementations.
 type WriteMode int
 
+// writeModePerm is a mask to extract permission bits from a WriteMode.
+const writeModePerm = WriteMode(fs.ModePerm)
+
 const (
-	OverwriteIfExists WriteMode = 1 << iota
+	// Note: these constants are defined as powers of 2 to support combining them using a bit-wise OR.
+	// They starts from the 10th bit (permission mask + 1) to avoid conflicts with the permission bits.
+	OverwriteIfExists WriteMode = (writeModePerm + 1) << iota
 	CreateParentDirectories
 )
 
+// DeleteMode captures intent when deleting a file.
 type DeleteMode int
 
 const (

libs/filer/filer_test.go

@@ -0,0 +1,12 @@
+package filer
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestWriteMode(t *testing.T) {
+	assert.Equal(t, 512, int(OverwriteIfExists))
+	assert.Equal(t, 1024, int(CreateParentDirectories))
+}

libs/filer/local_client.go

@@ -28,6 +28,15 @@ func (w *LocalClient) Write(ctx context.Context, name string, reader io.Reader,
 		return err
 	}
 
+	// Retrieve permission mask from the [WriteMode], if present.
+	perm := fs.FileMode(0644)
+	for _, m := range mode {
+		bits := m & writeModePerm
+		if bits != 0 {
+			perm = fs.FileMode(bits)
+		}
+	}
+
 	flags := os.O_WRONLY | os.O_CREATE
 	if slices.Contains(mode, OverwriteIfExists) {
 		flags |= os.O_TRUNC
@@ -35,7 +44,7 @@ func (w *LocalClient) Write(ctx context.Context, name string, reader io.Reader,
 		flags |= os.O_EXCL
 	}
 
-	f, err := os.OpenFile(absPath, flags, 0644)
+	f, err := os.OpenFile(absPath, flags, perm)
 	if errors.Is(err, fs.ErrNotExist) && slices.Contains(mode, CreateParentDirectories) {
 		// Create parent directories if they don't exist.
 		err = os.MkdirAll(filepath.Dir(absPath), 0755)
@@ -43,7 +52,7 @@ func (w *LocalClient) Write(ctx context.Context, name string, reader io.Reader,
 			return err
 		}
 		// Try again.
-		f, err = os.OpenFile(absPath, flags, 0644)
+		f, err = os.OpenFile(absPath, flags, perm)
 	}
 
 	if err != nil {

libs/filer/workspace_files_extensions_client.go

@@ -244,6 +244,17 @@ func (w *workspaceFilesExtensionsClient) Write(ctx context.Context, name string,
 
 // Try to read the file as a regular file. If the file is not found, try to read it as a notebook.
 func (w *workspaceFilesExtensionsClient) Read(ctx context.Context, name string) (io.ReadCloser, error) {
+	// Ensure that the file / notebook exists. We do this check here to avoid reading
+	// the content of a notebook called `foo` when the user actually wanted
+	// to read the content of a file called `foo`.
+	//
+	// To read the content of a notebook called `foo` in the workspace the user
+	// should use the name with the extension included like `foo.ipynb` or `foo.sql`.
+	_, err := w.Stat(ctx, name)
+	if err != nil {
+		return nil, err
+	}
+
 	r, err := w.wsfs.Read(ctx, name)
 
 	// If the file is not found, it might be a notebook.
@@ -276,7 +287,18 @@ func (w *workspaceFilesExtensionsClient) Delete(ctx context.Context, name string
 		return ReadOnlyError{"delete"}
 	}
 
-	err := w.wsfs.Delete(ctx, name, mode...)
+	// Ensure that the file / notebook exists. We do this check here to avoid
+	// deleting the a notebook called `foo` when the user actually wanted to
+	// delete a file called `foo`.
+	//
+	// To delete a notebook called `foo` in the workspace the user should use the
+	// name with the extension included like `foo.ipynb` or `foo.sql`.
+	_, err := w.Stat(ctx, name)
+	if err != nil {
+		return err
+	}
+
+	err = w.wsfs.Delete(ctx, name, mode...)
 
 	// If the file is not found, it might be a notebook.
 	if errors.As(err, &FileDoesNotExistError{}) {
@@ -315,7 +337,24 @@ func (w *workspaceFilesExtensionsClient) Stat(ctx context.Context, name string)
 		return wsfsFileInfo{ObjectInfo: stat.ObjectInfo}, nil
 	}
 
-	return info, err
+	if err != nil {
+		return nil, err
+	}
+
+	// If an object is found and it is a notebook, return a FileDoesNotExistError.
+	// If a notebook is found by the workspace files client, without having stripped
+	// the extension, this implies that no file with the same name exists.
+	//
+	// This check is done to avoid returning the stat for a notebook called `foo`
+	// when the user actually wanted to stat a file called `foo`.
+	//
+	// To stat the metadata of a notebook called `foo` in the workspace the user
+	// should use the name with the extension included like `foo.ipynb` or `foo.sql`.
+	if info.Sys().(workspace.ObjectInfo).ObjectType == workspace.ObjectTypeNotebook {
+		return nil, FileDoesNotExistError{name}
+	}
+
+	return info, nil
 }
 
 // Note: The import API returns opaque internal errors for namespace clashes

libs/jsonschema/schema.go

@@ -3,7 +3,9 @@ package jsonschema
 import (
 	"encoding/json"
 	"fmt"
+	"io/fs"
 	"os"
+	"path/filepath"
 	"regexp"
 	"slices"
 
@@ -255,7 +257,12 @@ func (schema *Schema) validate() error {
 }
 
 func Load(path string) (*Schema, error) {
-	b, err := os.ReadFile(path)
+	dir, file := filepath.Split(path)
+	return LoadFS(os.DirFS(dir), file)
+}
+
+func LoadFS(fsys fs.FS, path string) (*Schema, error) {
+	b, err := fs.ReadFile(fsys, path)
 	if err != nil {
 		return nil, err
 	}

libs/jsonschema/schema_test.go

@@ -1,6 +1,7 @@
 package jsonschema
 
 import (
+	"os"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -305,3 +306,9 @@ func TestValidateSchemaSkippedPropertiesHaveDefaults(t *testing.T) {
 	err = s.validate()
 	assert.NoError(t, err)
 }
+
+func TestSchema_LoadFS(t *testing.T) {
+	fsys := os.DirFS("./testdata/schema-load-int")
+	_, err := LoadFS(fsys, "schema-valid.json")
+	assert.NoError(t, err)
+}

libs/template/builtin.go

@@ -0,0 +1,47 @@
+package template
+
+import (
+	"embed"
+	"io/fs"
+)
+
+//go:embed all:templates
+var builtinTemplates embed.FS
+
+// BuiltinTemplate represents a template that is built into the CLI.
+type BuiltinTemplate struct {
+	Name string
+	FS   fs.FS
+}
+
+// Builtin returns the list of all built-in templates.
+func Builtin() ([]BuiltinTemplate, error) {
+	templates, err := fs.Sub(builtinTemplates, "templates")
+	if err != nil {
+		return nil, err
+	}
+
+	entries, err := fs.ReadDir(templates, ".")
+	if err != nil {
+		return nil, err
+	}
+
+	var out []BuiltinTemplate
+	for _, entry := range entries {
+		if !entry.IsDir() {
+			continue
+		}
+
+		templateFS, err := fs.Sub(templates, entry.Name())
+		if err != nil {
+			return nil, err
+		}
+
+		out = append(out, BuiltinTemplate{
+			Name: entry.Name(),
+			FS:   templateFS,
+		})
+	}
+
+	return out, nil
+}

libs/template/builtin_test.go

@@ -0,0 +1,28 @@
+package template
+
+import (
+	"io/fs"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBuiltin(t *testing.T) {
+	out, err := Builtin()
+	require.NoError(t, err)
+	assert.Len(t, out, 3)
+
+	// Confirm names.
+	assert.Equal(t, "dbt-sql", out[0].Name)
+	assert.Equal(t, "default-python", out[1].Name)
+	assert.Equal(t, "default-sql", out[2].Name)
+
+	// Confirm that the filesystems work.
+	_, err = fs.Stat(out[0].FS, `template/{{.project_name}}/dbt_project.yml.tmpl`)
+	assert.NoError(t, err)
+	_, err = fs.Stat(out[1].FS, `template/{{.project_name}}/tests/main_test.py.tmpl`)
+	assert.NoError(t, err)
+	_, err = fs.Stat(out[2].FS, `template/{{.project_name}}/src/orders_daily.sql.tmpl`)
+	assert.NoError(t, err)
+}

libs/template/config.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io/fs"
 
 	"github.com/databricks/cli/libs/cmdio"
 	"github.com/databricks/cli/libs/jsonschema"
@@ -28,9 +29,8 @@ type config struct {
 	schema *jsonschema.Schema
 }
 
-func newConfig(ctx context.Context, schemaPath string) (*config, error) {
+func newConfig(ctx context.Context, templateFS fs.FS, schemaPath string) (*config, error) {
-	// Read config schema
+	schema, err := jsonschema.LoadFS(templateFS, schemaPath)
-	schema, err := jsonschema.Load(schemaPath)
 	if err != nil {
 		return nil, err
 	}

libs/template/config_test.go

@@ -3,6 +3,8 @@ package template
 import (
 	"context"
 	"fmt"
+	"os"
+	"path"
 	"path/filepath"
 	"testing"
 	"text/template"
@@ -16,7 +18,7 @@ func TestTemplateConfigAssignValuesFromFile(t *testing.T) {
 	testDir := "./testdata/config-assign-from-file"
 
 	ctx := context.Background()
-	c, err := newConfig(ctx, filepath.Join(testDir, "schema.json"))
+	c, err := newConfig(ctx, os.DirFS(testDir), "schema.json")
 	require.NoError(t, err)
 
 	err = c.assignValuesFromFile(filepath.Join(testDir, "config.json"))
@@ -32,7 +34,7 @@ func TestTemplateConfigAssignValuesFromFileDoesNotOverwriteExistingConfigs(t *te
 	testDir := "./testdata/config-assign-from-file"
 
 	ctx := context.Background()
-	c, err := newConfig(ctx, filepath.Join(testDir, "schema.json"))
+	c, err := newConfig(ctx, os.DirFS(testDir), "schema.json")
 	require.NoError(t, err)
 
 	c.values = map[string]any{
@@ -52,7 +54,7 @@ func TestTemplateConfigAssignValuesFromFileForInvalidIntegerValue(t *testing.T)
 	testDir := "./testdata/config-assign-from-file-invalid-int"
 
 	ctx := context.Background()
-	c, err := newConfig(ctx, filepath.Join(testDir, "schema.json"))
+	c, err := newConfig(ctx, os.DirFS(testDir), "schema.json")
 	require.NoError(t, err)
 
 	err = c.assignValuesFromFile(filepath.Join(testDir, "config.json"))
@@ -63,7 +65,7 @@ func TestTemplateConfigAssignValuesFromFileFiltersPropertiesNotInTheSchema(t *te
 	testDir := "./testdata/config-assign-from-file-unknown-property"
 
 	ctx := context.Background()
-	c, err := newConfig(ctx, filepath.Join(testDir, "schema.json"))
+	c, err := newConfig(ctx, os.DirFS(testDir), "schema.json")
 	require.NoError(t, err)
 
 	err = c.assignValuesFromFile(filepath.Join(testDir, "config.json"))
@@ -78,10 +80,10 @@ func TestTemplateConfigAssignValuesFromDefaultValues(t *testing.T) {
 	testDir := "./testdata/config-assign-from-default-value"
 
 	ctx := context.Background()
-	c, err := newConfig(ctx, filepath.Join(testDir, "schema.json"))
+	c, err := newConfig(ctx, os.DirFS(testDir), "schema.json")
 	require.NoError(t, err)
 
-	r, err := newRenderer(ctx, nil, nil, "./testdata/empty/template", "./testdata/empty/library", t.TempDir())
+	r, err := newRenderer(ctx, nil, nil, os.DirFS("."), "./testdata/empty/template", "./testdata/empty/library")
 	require.NoError(t, err)
 
 	err = c.assignDefaultValues(r)
@@ -97,10 +99,10 @@ func TestTemplateConfigAssignValuesFromTemplatedDefaultValues(t *testing.T) {
 	testDir := "./testdata/config-assign-from-templated-default-value"
 
 	ctx := context.Background()
-	c, err := newConfig(ctx, filepath.Join(testDir, "schema.json"))
+	c, err := newConfig(ctx, os.DirFS(testDir), "schema.json")
 	require.NoError(t, err)
 
-	r, err := newRenderer(ctx, nil, nil, filepath.Join(testDir, "template/template"), filepath.Join(testDir, "template/library"), t.TempDir())
+	r, err := newRenderer(ctx, nil, nil, os.DirFS("."), path.Join(testDir, "template/template"), path.Join(testDir, "template/library"))
 	require.NoError(t, err)
 
 	// Note: only the string value is templated.
@@ -116,7 +118,7 @@ func TestTemplateConfigAssignValuesFromTemplatedDefaultValues(t *testing.T) {
 
 func TestTemplateConfigValidateValuesDefined(t *testing.T) {
 	ctx := context.Background()
-	c, err := newConfig(ctx, "testdata/config-test-schema/test-schema.json")
+	c, err := newConfig(ctx, os.DirFS("testdata/config-test-schema"), "test-schema.json")
 	require.NoError(t, err)
 
 	c.values = map[string]any{
@@ -131,7 +133,7 @@ func TestTemplateConfigValidateValuesDefined(t *testing.T) {
 
 func TestTemplateConfigValidateTypeForValidConfig(t *testing.T) {
 	ctx := context.Background()
-	c, err := newConfig(ctx, "testdata/config-test-schema/test-schema.json")
+	c, err := newConfig(ctx, os.DirFS("testdata/config-test-schema"), "test-schema.json")
 	require.NoError(t, err)
 
 	c.values = map[string]any{
@@ -147,7 +149,7 @@ func TestTemplateConfigValidateTypeForValidConfig(t *testing.T) {
 
 func TestTemplateConfigValidateTypeForUnknownField(t *testing.T) {
 	ctx := context.Background()
-	c, err := newConfig(ctx, "testdata/config-test-schema/test-schema.json")
+	c, err := newConfig(ctx, os.DirFS("testdata/config-test-schema"), "test-schema.json")
 	require.NoError(t, err)
 
 	c.values = map[string]any{
@@ -164,7 +166,7 @@ func TestTemplateConfigValidateTypeForUnknownField(t *testing.T) {
 
 func TestTemplateConfigValidateTypeForInvalidType(t *testing.T) {
 	ctx := context.Background()
-	c, err := newConfig(ctx, "testdata/config-test-schema/test-schema.json")
+	c, err := newConfig(ctx, os.DirFS("testdata/config-test-schema"), "test-schema.json")
 	require.NoError(t, err)
 
 	c.values = map[string]any{
@@ -271,7 +273,8 @@ func TestTemplateEnumValidation(t *testing.T) {
 }
 
 func TestTemplateSchemaErrorsWithEmptyDescription(t *testing.T) {
-	_, err := newConfig(context.Background(), "./testdata/config-test-schema/invalid-test-schema.json")
+	ctx := context.Background()
+	_, err := newConfig(ctx, os.DirFS("./testdata/config-test-schema"), "invalid-test-schema.json")
 	assert.EqualError(t, err, "template property property-without-description is missing a description")
 }
 

libs/template/file.go

@@ -1,11 +1,10 @@
 package template
 
 import (
+	"bytes"
 	"context"
-	"io"
 	"io/fs"
-	"os"
+	"slices"
-	"path/filepath"
 
 	"github.com/databricks/cli/libs/filer"
 )
@@ -13,89 +12,69 @@ import (
 // Interface representing a file to be materialized from a template into a project
 // instance
 type file interface {
-	// Destination path for file. This is where the file will be created when
+	// Path of the file relative to the root of the instantiated template.
-	// PersistToDisk is called.
+	// This is where the file is written to when persisting the template to disk.
-	DstPath() *destinationPath
+	// Must be slash-separated.
+	RelPath() string
 
 	// Write file to disk at the destination path.
-	PersistToDisk() error
+	Write(ctx context.Context, out filer.Filer) error
-}
 
-type destinationPath struct {
+	// contents returns the file contents as a byte slice.
-	// Root path for the project instance. This path uses the system's default
+	// This is used for testing purposes.
-	// file separator. For example /foo/bar on Unix and C:\foo\bar on windows
+	contents() ([]byte, error)
-	root string
-
-	// Unix like file path relative to the "root" of the instantiated project. Is used to
-	// evaluate whether the file should be skipped by comparing it to a list of
-	// skip glob patterns.
-	relPath string
-}
-
-// Absolute path of the file, in the os native format. For example /foo/bar on
-// Unix and C:\foo\bar on windows
-func (f *destinationPath) absPath() string {
-	return filepath.Join(f.root, filepath.FromSlash(f.relPath))
 }
 
 type copyFile struct {
-	ctx context.Context
-
 	// Permissions bits for the destination file
 	perm fs.FileMode
 
-	dstPath *destinationPath
+	// Destination path for the file.
+	relPath string
 
-	// Filer rooted at template root. Used to read srcPath.
+	// [fs.FS] rooted at template root. Used to read srcPath.
-	srcFiler filer.Filer
+	srcFS fs.FS
 
 	// Relative path from template root for file to be copied.
 	srcPath string
 }
 
-func (f *copyFile) DstPath() *destinationPath {
+func (f *copyFile) RelPath() string {
-	return f.dstPath
+	return f.relPath
 }
 
-func (f *copyFile) PersistToDisk() error {
+func (f *copyFile) Write(ctx context.Context, out filer.Filer) error {
-	path := f.DstPath().absPath()
+	src, err := f.srcFS.Open(f.srcPath)
-	err := os.MkdirAll(filepath.Dir(path), 0755)
 	if err != nil {
 		return err
 	}
-	srcFile, err := f.srcFiler.Read(f.ctx, f.srcPath)
+	defer src.Close()
-	if err != nil {
+	return out.Write(ctx, f.relPath, src, filer.CreateParentDirectories, filer.WriteMode(f.perm))
-		return err
 }
-	defer srcFile.Close()
+
-	dstFile, err := os.OpenFile(path, os.O_CREATE|os.O_EXCL|os.O_WRONLY, f.perm)
+func (f *copyFile) contents() ([]byte, error) {
-	if err != nil {
+	return fs.ReadFile(f.srcFS, f.srcPath)
-		return err
-	}
-	defer dstFile.Close()
-	_, err = io.Copy(dstFile, srcFile)
-	return err
 }
 
 type inMemoryFile struct {
-	dstPath *destinationPath
-
-	content []byte
-
 	// Permissions bits for the destination file
 	perm fs.FileMode
+
+	// Destination path for the file.
+	relPath string
+
+	// Contents of the file.
+	content []byte
 }
 
-func (f *inMemoryFile) DstPath() *destinationPath {
+func (f *inMemoryFile) RelPath() string {
-	return f.dstPath
+	return f.relPath
 }
 
-func (f *inMemoryFile) PersistToDisk() error {
+func (f *inMemoryFile) Write(ctx context.Context, out filer.Filer) error {
-	path := f.DstPath().absPath()
+	return out.Write(ctx, f.relPath, bytes.NewReader(f.content), filer.CreateParentDirectories, filer.WriteMode(f.perm))
+}
 
-	err := os.MkdirAll(filepath.Dir(path), 0755)
+func (f *inMemoryFile) contents() ([]byte, error) {
-	if err != nil {
+	return slices.Clone(f.content), nil
-		return err
-	}
-	return os.WriteFile(path, f.content, f.perm)
 }

libs/template/file_test.go

@@ -13,76 +13,51 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func testInMemoryFile(t *testing.T, perm fs.FileMode) {
+func testInMemoryFile(t *testing.T, ctx context.Context, perm fs.FileMode) {
 	tmpDir := t.TempDir()
 
 	f := &inMemoryFile{
-		dstPath: &destinationPath{
-			root:    tmpDir,
-			relPath: "a/b/c",
-		},
 		perm:    perm,
+		relPath: "a/b/c",
 		content: []byte("123"),
 	}
-	err := f.PersistToDisk()
+
+	out, err := filer.NewLocalClient(tmpDir)
+	require.NoError(t, err)
+	err = f.Write(ctx, out)
 	assert.NoError(t, err)
 
 	assertFileContent(t, filepath.Join(tmpDir, "a/b/c"), "123")
 	assertFilePermissions(t, filepath.Join(tmpDir, "a/b/c"), perm)
 }
 
-func testCopyFile(t *testing.T, perm fs.FileMode) {
+func testCopyFile(t *testing.T, ctx context.Context, perm fs.FileMode) {
 	tmpDir := t.TempDir()
-
+	err := os.WriteFile(filepath.Join(tmpDir, "source"), []byte("qwerty"), perm)
-	templateFiler, err := filer.NewLocalClient(tmpDir)
-	require.NoError(t, err)
-	err = os.WriteFile(filepath.Join(tmpDir, "source"), []byte("qwerty"), perm)
 	require.NoError(t, err)
 
 	f := &copyFile{
-		ctx: context.Background(),
-		dstPath: &destinationPath{
-			root:    tmpDir,
-			relPath: "a/b/c",
-		},
 		perm:    perm,
+		relPath: "a/b/c",
+		srcFS:   os.DirFS(tmpDir),
 		srcPath: "source",
-		srcFiler: templateFiler,
 	}
-	err = f.PersistToDisk()
+
+	out, err := filer.NewLocalClient(tmpDir)
+	require.NoError(t, err)
+	err = f.Write(ctx, out)
 	assert.NoError(t, err)
 
 	assertFileContent(t, filepath.Join(tmpDir, "a/b/c"), "qwerty")
 	assertFilePermissions(t, filepath.Join(tmpDir, "a/b/c"), perm)
 }
 
-func TestTemplateFileDestinationPath(t *testing.T) {
-	if runtime.GOOS == "windows" {
-		t.SkipNow()
-	}
-	f := &destinationPath{
-		root:    `a/b/c`,
-		relPath: "d/e",
-	}
-	assert.Equal(t, `a/b/c/d/e`, f.absPath())
-}
-
-func TestTemplateFileDestinationPathForWindows(t *testing.T) {
-	if runtime.GOOS != "windows" {
-		t.SkipNow()
-	}
-	f := &destinationPath{
-		root:    `c:\a\b\c`,
-		relPath: "d/e",
-	}
-	assert.Equal(t, `c:\a\b\c\d\e`, f.absPath())
-}
-
 func TestTemplateInMemoryFilePersistToDisk(t *testing.T) {
 	if runtime.GOOS == "windows" {
 		t.SkipNow()
 	}
-	testInMemoryFile(t, 0755)
+	ctx := context.Background()
+	testInMemoryFile(t, ctx, 0755)
 }
 
 func TestTemplateInMemoryFilePersistToDiskForWindows(t *testing.T) {
@@ -91,14 +66,16 @@ func TestTemplateInMemoryFilePersistToDiskForWindows(t *testing.T) {
 	}
 	// we have separate tests for windows because of differences in valid
 	// fs.FileMode values we can use for different operating systems.
-	testInMemoryFile(t, 0666)
+	ctx := context.Background()
+	testInMemoryFile(t, ctx, 0666)
 }
 
 func TestTemplateCopyFilePersistToDisk(t *testing.T) {
 	if runtime.GOOS == "windows" {
 		t.SkipNow()
 	}
-	testCopyFile(t, 0644)
+	ctx := context.Background()
+	testCopyFile(t, ctx, 0644)
 }
 
 func TestTemplateCopyFilePersistToDiskForWindows(t *testing.T) {
@@ -107,5 +84,6 @@ func TestTemplateCopyFilePersistToDiskForWindows(t *testing.T) {
 	}
 	// we have separate tests for windows because of differences in valid
 	// fs.FileMode values we can use for different operating systems.
-	testCopyFile(t, 0666)
+	ctx := context.Background()
+	testCopyFile(t, ctx, 0666)
 }

libs/template/helpers_test.go

@@ -18,11 +18,10 @@ import (
 
 func TestTemplatePrintStringWithoutProcessing(t *testing.T) {
 	ctx := context.Background()
-	tmpDir := t.TempDir()
 
 	ctx = root.SetWorkspaceClient(ctx, nil)
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/print-without-processing/template", "./testdata/print-without-processing/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/print-without-processing/template", "./testdata/print-without-processing/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -35,11 +34,10 @@ func TestTemplatePrintStringWithoutProcessing(t *testing.T) {
 
 func TestTemplateRegexpCompileFunction(t *testing.T) {
 	ctx := context.Background()
-	tmpDir := t.TempDir()
 
 	ctx = root.SetWorkspaceClient(ctx, nil)
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/regexp-compile/template", "./testdata/regexp-compile/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/regexp-compile/template", "./testdata/regexp-compile/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -53,11 +51,10 @@ func TestTemplateRegexpCompileFunction(t *testing.T) {
 
 func TestTemplateRandIntFunction(t *testing.T) {
 	ctx := context.Background()
-	tmpDir := t.TempDir()
 
 	ctx = root.SetWorkspaceClient(ctx, nil)
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/random-int/template", "./testdata/random-int/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/random-int/template", "./testdata/random-int/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -71,11 +68,10 @@ func TestTemplateRandIntFunction(t *testing.T) {
 
 func TestTemplateUuidFunction(t *testing.T) {
 	ctx := context.Background()
-	tmpDir := t.TempDir()
 
 	ctx = root.SetWorkspaceClient(ctx, nil)
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/uuid/template", "./testdata/uuid/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/uuid/template", "./testdata/uuid/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -88,11 +84,10 @@ func TestTemplateUuidFunction(t *testing.T) {
 
 func TestTemplateUrlFunction(t *testing.T) {
 	ctx := context.Background()
-	tmpDir := t.TempDir()
 
 	ctx = root.SetWorkspaceClient(ctx, nil)
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/urlparse-function/template", "./testdata/urlparse-function/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/urlparse-function/template", "./testdata/urlparse-function/library")
 
 	require.NoError(t, err)
 
@@ -105,11 +100,10 @@ func TestTemplateUrlFunction(t *testing.T) {
 
 func TestTemplateMapPairFunction(t *testing.T) {
 	ctx := context.Background()
-	tmpDir := t.TempDir()
 
 	ctx = root.SetWorkspaceClient(ctx, nil)
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/map-pair/template", "./testdata/map-pair/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/map-pair/template", "./testdata/map-pair/library")
 
 	require.NoError(t, err)
 
@@ -122,7 +116,6 @@ func TestTemplateMapPairFunction(t *testing.T) {
 
 func TestWorkspaceHost(t *testing.T) {
 	ctx := context.Background()
-	tmpDir := t.TempDir()
 
 	w := &databricks.WorkspaceClient{
 		Config: &workspaceConfig.Config{
@@ -132,7 +125,7 @@ func TestWorkspaceHost(t *testing.T) {
 	ctx = root.SetWorkspaceClient(ctx, w)
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/workspace-host/template", "./testdata/map-pair/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/workspace-host/template", "./testdata/map-pair/library")
 
 	require.NoError(t, err)
 
@@ -149,7 +142,6 @@ func TestWorkspaceHostNotConfigured(t *testing.T) {
 	ctx := context.Background()
 	cmd := cmdio.NewIO(flags.OutputJSON, strings.NewReader(""), os.Stdout, os.Stderr, "", "template")
 	ctx = cmdio.InContext(ctx, cmd)
-	tmpDir := t.TempDir()
 
 	w := &databricks.WorkspaceClient{
 		Config: &workspaceConfig.Config{},
@@ -157,7 +149,7 @@ func TestWorkspaceHostNotConfigured(t *testing.T) {
 	ctx = root.SetWorkspaceClient(ctx, w)
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/workspace-host/template", "./testdata/map-pair/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/workspace-host/template", "./testdata/map-pair/library")
 
 	assert.NoError(t, err)
 

libs/template/materialize.go

@@ -2,54 +2,32 @@ package template
 
 import (
 	"context"
-	"embed"
 	"errors"
 	"fmt"
 	"io/fs"
-	"os"
-	"path"
-	"path/filepath"
 
 	"github.com/databricks/cli/libs/cmdio"
+	"github.com/databricks/cli/libs/filer"
 )
 
 const libraryDirName = "library"
 const templateDirName = "template"
 const schemaFileName = "databricks_template_schema.json"
 
-//go:embed all:templates
-var builtinTemplates embed.FS
-
 // This function materializes the input templates as a project, using user defined
 // configurations.
 // Parameters:
 //
 //	ctx: 			context containing a cmdio object. This is used to prompt the user
 //	configFilePath: file path containing user defined config values
-//	templateRoot: 	root of the template definition
+//	templateFS: 	root of the template definition
-//	outputDir: 	root of directory where to initialize the template
+//	outputFiler: 	filer to use for writing the initialized template
-func Materialize(ctx context.Context, configFilePath, templateRoot, outputDir string) error {
+func Materialize(ctx context.Context, configFilePath string, templateFS fs.FS, outputFiler filer.Filer) error {
-	// Use a temporary directory in case any builtin templates like default-python are used
+	if _, err := fs.Stat(templateFS, schemaFileName); errors.Is(err, fs.ErrNotExist) {
-	tempDir, err := os.MkdirTemp("", "templates")
+		return fmt.Errorf("not a bundle template: expected to find a template schema file at %s", schemaFileName)
-	defer os.RemoveAll(tempDir)
-	if err != nil {
-		return err
-	}
-	templateRoot, err = prepareBuiltinTemplates(templateRoot, tempDir)
-	if err != nil {
-		return err
 	}
 
-	templatePath := filepath.Join(templateRoot, templateDirName)
+	config, err := newConfig(ctx, templateFS, schemaFileName)
-	libraryPath := filepath.Join(templateRoot, libraryDirName)
-	schemaPath := filepath.Join(templateRoot, schemaFileName)
-	helpers := loadHelpers(ctx)
-
-	if _, err := os.Stat(schemaPath); errors.Is(err, fs.ErrNotExist) {
-		return fmt.Errorf("not a bundle template: expected to find a template schema file at %s", schemaPath)
-	}
-
-	config, err := newConfig(ctx, schemaPath)
 	if err != nil {
 		return err
 	}
@@ -62,7 +40,8 @@ func Materialize(ctx context.Context, configFilePath, templateRoot, outputDir st
 		}
 	}
 
-	r, err := newRenderer(ctx, config.values, helpers, templatePath, libraryPath, outputDir)
+	helpers := loadHelpers(ctx)
+	r, err := newRenderer(ctx, config.values, helpers, templateFS, templateDirName, libraryDirName)
 	if err != nil {
 		return err
 	}
@@ -94,7 +73,7 @@ func Materialize(ctx context.Context, configFilePath, templateRoot, outputDir st
 		return err
 	}
 
-	err = r.persistToDisk()
+	err = r.persistToDisk(ctx, outputFiler)
 	if err != nil {
 		return err
 	}
@@ -111,44 +90,3 @@ func Materialize(ctx context.Context, configFilePath, templateRoot, outputDir st
 	}
 	return nil
 }
-
-// If the given templateRoot matches
-func prepareBuiltinTemplates(templateRoot string, tempDir string) (string, error) {
-	// Check that `templateRoot` is a clean basename, i.e. `some_path` and not `./some_path` or "."
-	// Return early if that's not the case.
-	if templateRoot == "." || path.Base(templateRoot) != templateRoot {
-		return templateRoot, nil
-	}
-
-	_, err := fs.Stat(builtinTemplates, path.Join("templates", templateRoot))
-	if err != nil {
-		// The given path doesn't appear to be using out built-in templates
-		return templateRoot, nil
-	}
-
-	// We have a built-in template with the same name as templateRoot!
-	// Now we need to make a fully copy of the builtin templates to a real file system
-	// since template.Parse() doesn't support embed.FS.
-	err = fs.WalkDir(builtinTemplates, "templates", func(path string, entry fs.DirEntry, err error) error {
-		if err != nil {
-			return err
-		}
-
-		targetPath := filepath.Join(tempDir, path)
-		if entry.IsDir() {
-			return os.Mkdir(targetPath, 0755)
-		} else {
-			content, err := fs.ReadFile(builtinTemplates, path)
-			if err != nil {
-				return err
-			}
-			return os.WriteFile(targetPath, content, 0644)
-		}
-	})
-
-	if err != nil {
-		return "", err
-	}
-
-	return filepath.Join(tempDir, "templates", templateRoot), nil
-}

libs/template/materialize_test.go

@@ -3,7 +3,7 @@ package template
 import (
 	"context"
 	"fmt"
-	"path/filepath"
+	"os"
 	"testing"
 
 	"github.com/databricks/cli/cmd/root"
@@ -19,6 +19,6 @@ func TestMaterializeForNonTemplateDirectory(t *testing.T) {
 	ctx := root.SetWorkspaceClient(context.Background(), w)
 
 	// Try to materialize a non-template directory.
-	err = Materialize(ctx, "", tmpDir, "")
+	err = Materialize(ctx, "", os.DirFS(tmpDir), nil)
-	assert.EqualError(t, err, fmt.Sprintf("not a bundle template: expected to find a template schema file at %s", filepath.Join(tmpDir, schemaFileName)))
+	assert.EqualError(t, err, fmt.Sprintf("not a bundle template: expected to find a template schema file at %s", schemaFileName))
 }

libs/template/renderer.go

@@ -6,9 +6,7 @@ import (
 	"fmt"
 	"io"
 	"io/fs"
-	"os"
 	"path"
-	"path/filepath"
 	"regexp"
 	"slices"
 	"sort"
@@ -52,32 +50,38 @@ type renderer struct {
 	// do not match any glob patterns from this list
 	skipPatterns []string
 
-	// Filer rooted at template root. The file tree from this root is walked to
+	// [fs.FS] that holds the template's file tree.
-	// generate the project
+	srcFS fs.FS
-	templateFiler filer.Filer
-
-	// Root directory for the project instantiated from the template
-	instanceRoot string
 }
 
-func newRenderer(ctx context.Context, config map[string]any, helpers template.FuncMap, templateRoot, libraryRoot, instanceRoot string) (*renderer, error) {
+func newRenderer(
+	ctx context.Context,
+	config map[string]any,
+	helpers template.FuncMap,
+	templateFS fs.FS,
+	templateDir string,
+	libraryDir string,
+) (*renderer, error) {
 	// Initialize new template, with helper functions loaded
 	tmpl := template.New("").Funcs(helpers)
 
-	// Load user defined associated templates from the library root
+	// Find user-defined templates in the library directory
-	libraryGlob := filepath.Join(libraryRoot, "*")
+	matches, err := fs.Glob(templateFS, path.Join(libraryDir, "*"))
-	matches, err := filepath.Glob(libraryGlob)
 	if err != nil {
 		return nil, err
 	}
+
+	// Parse user-defined templates.
+	// Note: we do not call [ParseFS] with the glob directly because
+	// it returns an error if no files match the pattern.
 	if len(matches) != 0 {
-		tmpl, err = tmpl.ParseFiles(matches...)
+		tmpl, err = tmpl.ParseFS(templateFS, matches...)
 		if err != nil {
 			return nil, err
 		}
 	}
 
-	templateFiler, err := filer.NewLocalClient(templateRoot)
+	srcFS, err := fs.Sub(templateFS, path.Clean(templateDir))
 	if err != nil {
 		return nil, err
 	}
@@ -90,8 +94,7 @@ func newRenderer(ctx context.Context, config map[string]any, helpers template.Fu
 		baseTemplate: tmpl,
 		files:        make([]file, 0),
 		skipPatterns: make([]string, 0),
-		templateFiler: templateFiler,
+		srcFS:        srcFS,
-		instanceRoot:  instanceRoot,
 	}, nil
 }
 
@@ -141,7 +144,7 @@ func (r *renderer) executeTemplate(templateDefinition string) (string, error) {
 
 func (r *renderer) computeFile(relPathTemplate string) (file, error) {
 	// read file permissions
-	info, err := r.templateFiler.Stat(r.ctx, relPathTemplate)
+	info, err := fs.Stat(r.srcFS, relPathTemplate)
 	if err != nil {
 		return nil, err
 	}
@@ -157,14 +160,10 @@ func (r *renderer) computeFile(relPathTemplate string) (file, error) {
 	// over as is, without treating it as a template
 	if !strings.HasSuffix(relPathTemplate, templateExtension) {
 		return &copyFile{
-			dstPath: &destinationPath{
-				root:    r.instanceRoot,
-				relPath: relPath,
-			},
 			perm:    perm,
-			ctx:      r.ctx,
+			relPath: relPath,
+			srcFS:   r.srcFS,
 			srcPath: relPathTemplate,
-			srcFiler: r.templateFiler,
 		}, nil
 	} else {
 		// Trim the .tmpl suffix from file name, if specified in the template
@@ -173,7 +172,7 @@ func (r *renderer) computeFile(relPathTemplate string) (file, error) {
 	}
 
 	// read template file's content
-	templateReader, err := r.templateFiler.Read(r.ctx, relPathTemplate)
+	templateReader, err := r.srcFS.Open(relPathTemplate)
 	if err != nil {
 		return nil, err
 	}
@@ -194,11 +193,8 @@ func (r *renderer) computeFile(relPathTemplate string) (file, error) {
 	}
 
 	return &inMemoryFile{
-		dstPath: &destinationPath{
-			root:    r.instanceRoot,
-			relPath: relPath,
-		},
 		perm:    perm,
+		relPath: relPath,
 		content: []byte(content),
 	}, nil
 }
@@ -263,7 +259,7 @@ func (r *renderer) walk() error {
 		//
 		// 2. For directories: They are appended to a slice, which acts as a queue
 		//     allowing BFS traversal of the template file tree
-		entries, err := r.templateFiler.ReadDir(r.ctx, currentDirectory)
+		entries, err := fs.ReadDir(r.srcFS, currentDirectory)
 		if err != nil {
 			return err
 		}
@@ -283,7 +279,7 @@ func (r *renderer) walk() error {
 			if err != nil {
 				return err
 			}
-			logger.Infof(r.ctx, "added file to list of possible project files: %s", f.DstPath().relPath)
+			logger.Infof(r.ctx, "added file to list of possible project files: %s", f.RelPath())
 			r.files = append(r.files, f)
 		}
 
@@ -291,17 +287,17 @@ func (r *renderer) walk() error {
 	return nil
 }
 
-func (r *renderer) persistToDisk() error {
+func (r *renderer) persistToDisk(ctx context.Context, out filer.Filer) error {
 	// Accumulate files which we will persist, skipping files whose path matches
 	// any of the skip patterns
 	filesToPersist := make([]file, 0)
 	for _, file := range r.files {
-		match, err := isSkipped(file.DstPath().relPath, r.skipPatterns)
+		match, err := isSkipped(file.RelPath(), r.skipPatterns)
 		if err != nil {
 			return err
 		}
 		if match {
-			log.Infof(r.ctx, "skipping file: %s", file.DstPath())
+			log.Infof(r.ctx, "skipping file: %s", file.RelPath())
 			continue
 		}
 		filesToPersist = append(filesToPersist, file)
@@ -309,8 +305,8 @@ func (r *renderer) persistToDisk() error {
 
 	// Assert no conflicting files exist
 	for _, file := range filesToPersist {
-		path := file.DstPath().absPath()
+		path := file.RelPath()
-		_, err := os.Stat(path)
+		_, err := out.Stat(ctx, path)
 		if err == nil {
 			return fmt.Errorf("failed to initialize template, one or more files already exist: %s", path)
 		}
@@ -321,7 +317,7 @@ func (r *renderer) persistToDisk() error {
 
 	// Persist files to disk
 	for _, file := range filesToPersist {
-		err := file.PersistToDisk()
+		err := file.Write(ctx, out)
 		if err != nil {
 			return err
 		}

libs/template/renderer_test.go

@@ -3,9 +3,9 @@ package template
 import (
 	"context"
 	"fmt"
-	"io"
 	"io/fs"
 	"os"
+	"path"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -18,6 +18,7 @@ import (
 	"github.com/databricks/cli/cmd/root"
 	"github.com/databricks/cli/internal/testutil"
 	"github.com/databricks/cli/libs/diag"
+	"github.com/databricks/cli/libs/filer"
 	"github.com/databricks/cli/libs/tags"
 	"github.com/databricks/databricks-sdk-go"
 	workspaceConfig "github.com/databricks/databricks-sdk-go/config"
@@ -41,9 +42,8 @@ func assertFilePermissions(t *testing.T, path string, perm fs.FileMode) {
 func assertBuiltinTemplateValid(t *testing.T, template string, settings map[string]any, target string, isServicePrincipal bool, build bool, tempDir string) {
 	ctx := context.Background()
 
-	templatePath, err := prepareBuiltinTemplates(template, tempDir)
+	templateFS, err := fs.Sub(builtinTemplates, path.Join("templates", template))
 	require.NoError(t, err)
-	libraryPath := filepath.Join(templatePath, "library")
 
 	w := &databricks.WorkspaceClient{
 		Config: &workspaceConfig.Config{Host: "https://myhost.com"},
@@ -58,16 +58,18 @@ func assertBuiltinTemplateValid(t *testing.T, template string, settings map[stri
 	ctx = root.SetWorkspaceClient(ctx, w)
 	helpers := loadHelpers(ctx)
 
-	renderer, err := newRenderer(ctx, settings, helpers, templatePath, libraryPath, tempDir)
+	renderer, err := newRenderer(ctx, settings, helpers, templateFS, templateDirName, libraryDirName)
 	require.NoError(t, err)
 
 	// Evaluate template
 	err = renderer.walk()
 	require.NoError(t, err)
-	err = renderer.persistToDisk()
+	out, err := filer.NewLocalClient(tempDir)
+	require.NoError(t, err)
+	err = renderer.persistToDisk(ctx, out)
 	require.NoError(t, err)
 
-	b, err := bundle.Load(ctx, filepath.Join(tempDir, "template", "my_project"))
+	b, err := bundle.Load(ctx, filepath.Join(tempDir, "my_project"))
 	require.NoError(t, err)
 	diags := bundle.Apply(ctx, b, phases.LoadNamedTarget(target))
 	require.NoError(t, diags.Error())
@@ -96,18 +98,6 @@ func assertBuiltinTemplateValid(t *testing.T, template string, settings map[stri
 	}
 }
 
-func TestPrepareBuiltInTemplatesWithRelativePaths(t *testing.T) {
-	// CWD should not be resolved as a built in template
-	dir, err := prepareBuiltinTemplates(".", t.TempDir())
-	assert.NoError(t, err)
-	assert.Equal(t, ".", dir)
-
-	// relative path should not be resolved as a built in template
-	dir, err = prepareBuiltinTemplates("./default-python", t.TempDir())
-	assert.NoError(t, err)
-	assert.Equal(t, "./default-python", dir)
-}
-
 func TestBuiltinPythonTemplateValid(t *testing.T) {
 	// Test option combinations
 	options := []string{"yes", "no"}
@@ -194,13 +184,14 @@ func TestRendererWithAssociatedTemplateInLibrary(t *testing.T) {
 	ctx := context.Background()
 	ctx = root.SetWorkspaceClient(ctx, nil)
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/email/template", "./testdata/email/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/email/template", "./testdata/email/library")
 	require.NoError(t, err)
 
 	err = r.walk()
 	require.NoError(t, err)
-
+	out, err := filer.NewLocalClient(tmpDir)
-	err = r.persistToDisk()
+	require.NoError(t, err)
+	err = r.persistToDisk(ctx, out)
 	require.NoError(t, err)
 
 	b, err := os.ReadFile(filepath.Join(tmpDir, "my_email"))
@@ -325,45 +316,34 @@ func TestRendererPersistToDisk(t *testing.T) {
 
 	r := &renderer{
 		ctx:          ctx,
-		instanceRoot: tmpDir,
 		skipPatterns: []string{"a/b/c", "mn*"},
 		files: []file{
 			&inMemoryFile{
-				dstPath: &destinationPath{
+				perm:    0444,
-					root:    tmpDir,
 				relPath: "a/b/c",
-				},
-				perm:    0444,
 				content: nil,
 			},
 			&inMemoryFile{
-				dstPath: &destinationPath{
+				perm:    0444,
-					root:    tmpDir,
 				relPath: "mno",
-				},
-				perm:    0444,
 				content: nil,
 			},
 			&inMemoryFile{
-				dstPath: &destinationPath{
-					root:    tmpDir,
-					relPath: "a/b/d",
-				},
 				perm:    0444,
+				relPath: "a/b/d",
 				content: []byte("123"),
 			},
 			&inMemoryFile{
-				dstPath: &destinationPath{
-					root:    tmpDir,
-					relPath: "mmnn",
-				},
 				perm:    0444,
+				relPath: "mmnn",
 				content: []byte("456"),
 			},
 		},
 	}
 
-	err := r.persistToDisk()
+	out, err := filer.NewLocalClient(tmpDir)
+	require.NoError(t, err)
+	err = r.persistToDisk(ctx, out)
 	require.NoError(t, err)
 
 	assert.NoFileExists(t, filepath.Join(tmpDir, "a", "b", "c"))
@@ -378,10 +358,9 @@ func TestRendererPersistToDisk(t *testing.T) {
 func TestRendererWalk(t *testing.T) {
 	ctx := context.Background()
 	ctx = root.SetWorkspaceClient(ctx, nil)
-	tmpDir := t.TempDir()
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/walk/template", "./testdata/walk/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/walk/template", "./testdata/walk/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -389,21 +368,12 @@ func TestRendererWalk(t *testing.T) {
 
 	getContent := func(r *renderer, path string) string {
 		for _, f := range r.files {
-			if f.DstPath().relPath != path {
+			if f.RelPath() != path {
 				continue
 			}
-			switch v := f.(type) {
+			b, err := f.contents()
-			case *inMemoryFile:
-				return strings.Trim(string(v.content), "\r\n")
-			case *copyFile:
-				r, err := r.templateFiler.Read(context.Background(), v.srcPath)
-				require.NoError(t, err)
-				b, err := io.ReadAll(r)
 			require.NoError(t, err)
 			return strings.Trim(string(b), "\r\n")
-			default:
-				require.FailNow(t, "execution should not reach here")
-			}
 		}
 		require.FailNow(t, "file is absent: "+path)
 		return ""
@@ -419,10 +389,9 @@ func TestRendererWalk(t *testing.T) {
 func TestRendererFailFunction(t *testing.T) {
 	ctx := context.Background()
 	ctx = root.SetWorkspaceClient(ctx, nil)
-	tmpDir := t.TempDir()
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/fail/template", "./testdata/fail/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/fail/template", "./testdata/fail/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -432,10 +401,9 @@ func TestRendererFailFunction(t *testing.T) {
 func TestRendererSkipsDirsEagerly(t *testing.T) {
 	ctx := context.Background()
 	ctx = root.SetWorkspaceClient(ctx, nil)
-	tmpDir := t.TempDir()
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/skip-dir-eagerly/template", "./testdata/skip-dir-eagerly/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/skip-dir-eagerly/template", "./testdata/skip-dir-eagerly/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -452,7 +420,7 @@ func TestRendererSkipAllFilesInCurrentDirectory(t *testing.T) {
 	tmpDir := t.TempDir()
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/skip-all-files-in-cwd/template", "./testdata/skip-all-files-in-cwd/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/skip-all-files-in-cwd/template", "./testdata/skip-all-files-in-cwd/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -460,7 +428,9 @@ func TestRendererSkipAllFilesInCurrentDirectory(t *testing.T) {
 	// All 3 files are executed and have in memory representations
 	require.Len(t, r.files, 3)
 
-	err = r.persistToDisk()
+	out, err := filer.NewLocalClient(tmpDir)
+	require.NoError(t, err)
+	err = r.persistToDisk(ctx, out)
 	require.NoError(t, err)
 
 	entries, err := os.ReadDir(tmpDir)
@@ -472,10 +442,9 @@ func TestRendererSkipAllFilesInCurrentDirectory(t *testing.T) {
 func TestRendererSkipPatternsAreRelativeToFileDirectory(t *testing.T) {
 	ctx := context.Background()
 	ctx = root.SetWorkspaceClient(ctx, nil)
-	tmpDir := t.TempDir()
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/skip-is-relative/template", "./testdata/skip-is-relative/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/skip-is-relative/template", "./testdata/skip-is-relative/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -493,7 +462,7 @@ func TestRendererSkip(t *testing.T) {
 	tmpDir := t.TempDir()
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/skip/template", "./testdata/skip/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/skip/template", "./testdata/skip/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -502,7 +471,9 @@ func TestRendererSkip(t *testing.T) {
 	// This is because "dir2/*" matches the files in dir2, but not dir2 itself
 	assert.Len(t, r.files, 6)
 
-	err = r.persistToDisk()
+	out, err := filer.NewLocalClient(tmpDir)
+	require.NoError(t, err)
+	err = r.persistToDisk(ctx, out)
 	require.NoError(t, err)
 
 	assert.FileExists(t, filepath.Join(tmpDir, "file1"))
@@ -520,12 +491,11 @@ func TestRendererReadsPermissionsBits(t *testing.T) {
 	if runtime.GOOS != "linux" && runtime.GOOS != "darwin" {
 		t.SkipNow()
 	}
-	tmpDir := t.TempDir()
 	ctx := context.Background()
 	ctx = root.SetWorkspaceClient(ctx, nil)
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/executable-bit-read/template", "./testdata/executable-bit-read/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/executable-bit-read/template", "./testdata/executable-bit-read/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -533,7 +503,7 @@ func TestRendererReadsPermissionsBits(t *testing.T) {
 
 	getPermissions := func(r *renderer, path string) fs.FileMode {
 		for _, f := range r.files {
-			if f.DstPath().relPath != path {
+			if f.RelPath() != path {
 				continue
 			}
 			switch v := f.(type) {
@@ -556,6 +526,7 @@ func TestRendererReadsPermissionsBits(t *testing.T) {
 
 func TestRendererErrorOnConflictingFile(t *testing.T) {
 	tmpDir := t.TempDir()
+	ctx := context.Background()
 
 	f, err := os.Create(filepath.Join(tmpDir, "a"))
 	require.NoError(t, err)
@@ -566,17 +537,16 @@ func TestRendererErrorOnConflictingFile(t *testing.T) {
 		skipPatterns: []string{},
 		files: []file{
 			&inMemoryFile{
-				dstPath: &destinationPath{
-					root:    tmpDir,
-					relPath: "a",
-				},
 				perm:    0444,
+				relPath: "a",
 				content: []byte("123"),
 			},
 		},
 	}
-	err = r.persistToDisk()
+	out, err := filer.NewLocalClient(tmpDir)
-	assert.EqualError(t, err, fmt.Sprintf("failed to initialize template, one or more files already exist: %s", filepath.Join(tmpDir, "a")))
+	require.NoError(t, err)
+	err = r.persistToDisk(ctx, out)
+	assert.EqualError(t, err, fmt.Sprintf("failed to initialize template, one or more files already exist: %s", "a"))
 }
 
 func TestRendererNoErrorOnConflictingFileIfSkipped(t *testing.T) {
@@ -593,16 +563,15 @@ func TestRendererNoErrorOnConflictingFileIfSkipped(t *testing.T) {
 		skipPatterns: []string{"a"},
 		files: []file{
 			&inMemoryFile{
-				dstPath: &destinationPath{
-					root:    tmpDir,
-					relPath: "a",
-				},
 				perm:    0444,
+				relPath: "a",
 				content: []byte("123"),
 			},
 		},
 	}
-	err = r.persistToDisk()
+	out, err := filer.NewLocalClient(tmpDir)
+	require.NoError(t, err)
+	err = r.persistToDisk(ctx, out)
 	// No error is returned even though a conflicting file exists. This is because
 	// the generated file is being skipped
 	assert.NoError(t, err)
@@ -612,10 +581,9 @@ func TestRendererNoErrorOnConflictingFileIfSkipped(t *testing.T) {
 func TestRendererNonTemplatesAreCreatedAsCopyFiles(t *testing.T) {
 	ctx := context.Background()
 	ctx = root.SetWorkspaceClient(ctx, nil)
-	tmpDir := t.TempDir()
 
 	helpers := loadHelpers(ctx)
-	r, err := newRenderer(ctx, nil, helpers, "./testdata/copy-file-walk/template", "./testdata/copy-file-walk/library", tmpDir)
+	r, err := newRenderer(ctx, nil, helpers, os.DirFS("."), "./testdata/copy-file-walk/template", "./testdata/copy-file-walk/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -623,7 +591,7 @@ func TestRendererNonTemplatesAreCreatedAsCopyFiles(t *testing.T) {
 
 	assert.Len(t, r.files, 1)
 	assert.Equal(t, r.files[0].(*copyFile).srcPath, "not-a-template")
-	assert.Equal(t, r.files[0].DstPath().absPath(), filepath.Join(tmpDir, "not-a-template"))
+	assert.Equal(t, r.files[0].RelPath(), "not-a-template")
 }
 
 func TestRendererFileTreeRendering(t *testing.T) {
@@ -635,7 +603,7 @@ func TestRendererFileTreeRendering(t *testing.T) {
 	r, err := newRenderer(ctx, map[string]any{
 		"dir_name":  "my_directory",
 		"file_name": "my_file",
-	}, helpers, "./testdata/file-tree-rendering/template", "./testdata/file-tree-rendering/library", tmpDir)
+	}, helpers, os.DirFS("."), "./testdata/file-tree-rendering/template", "./testdata/file-tree-rendering/library")
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -643,9 +611,11 @@ func TestRendererFileTreeRendering(t *testing.T) {
 
 	// Assert in memory representation is created.
 	assert.Len(t, r.files, 1)
-	assert.Equal(t, r.files[0].DstPath().absPath(), filepath.Join(tmpDir, "my_directory", "my_file"))
+	assert.Equal(t, r.files[0].RelPath(), "my_directory/my_file")
 
-	err = r.persistToDisk()
+	out, err := filer.NewLocalClient(tmpDir)
+	require.NoError(t, err)
+	err = r.persistToDisk(ctx, out)
 	require.NoError(t, err)
 
 	// Assert files and directories are correctly materialized.
@@ -667,8 +637,7 @@ func TestRendererSubTemplateInPath(t *testing.T) {
 	// https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file.
 	testutil.Touch(t, filepath.Join(templateDir, "template/{{template `dir_name`}}/{{template `file_name`}}"))
 
-	tmpDir := t.TempDir()
+	r, err := newRenderer(ctx, nil, nil, os.DirFS(templateDir), "template", "library")
-	r, err := newRenderer(ctx, nil, nil, filepath.Join(templateDir, "template"), filepath.Join(templateDir, "library"), tmpDir)
 	require.NoError(t, err)
 
 	err = r.walk()
@@ -676,7 +645,6 @@ func TestRendererSubTemplateInPath(t *testing.T) {
 
 	if assert.Len(t, r.files, 2) {
 		f := r.files[1]
-		assert.Equal(t, filepath.Join(tmpDir, "my_directory", "my_file"), f.DstPath().absPath())
+		assert.Equal(t, "my_directory/my_file", f.RelPath())
-		assert.Equal(t, "my_directory/my_file", f.DstPath().relPath)
 	}
 }