databricks-cli/bundle/deploy/terraform/convert.go

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package terraform
import (
"context"
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"fmt"
"github.com/databricks/cli/bundle/config"
"github.com/databricks/cli/bundle/config/resources"
"github.com/databricks/cli/bundle/deploy/terraform/tfdyn"
"github.com/databricks/cli/bundle/internal/tf/schema"
"github.com/databricks/cli/libs/dyn"
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tfjson "github.com/hashicorp/terraform-json"
)
// BundleToTerraformWithDynValue converts resources in a bundle configuration
// to the equivalent Terraform JSON representation.
func BundleToTerraformWithDynValue(ctx context.Context, root dyn.Value) (*schema.Root, error) {
tfroot := schema.NewRoot()
tfroot.Provider = schema.NewProviders()
// Convert each resource in the bundle to the equivalent Terraform representation.
dynResources, err := dyn.Get(root, "resources")
if err != nil {
// If the resources key is missing, return an empty root.
if dyn.IsNoSuchKeyError(err) {
return tfroot, nil
}
return nil, err
}
tfroot.Resource = schema.NewResources()
numResources := 0
_, err = dyn.Walk(dynResources, func(p dyn.Path, v dyn.Value) (dyn.Value, error) {
if len(p) < 2 {
return v, nil
}
// Skip resources that have been deleted locally.
modifiedStatus, err := dyn.Get(v, "modified_status")
if err == nil {
modifiedStatusStr, ok := modifiedStatus.AsString()
if ok && modifiedStatusStr == resources.ModifiedStatusDeleted {
return v, dyn.ErrSkip
}
}
typ := p[0].Key()
key := p[1].Key()
// Lookup the converter based on the resource type.
c, ok := tfdyn.GetConverter(typ)
if !ok {
return dyn.InvalidValue, fmt.Errorf("no converter for resource type %s", typ)
}
// Convert resource to Terraform representation.
err = c.Convert(ctx, key, v, tfroot.Resource)
if err != nil {
return dyn.InvalidValue, err
}
numResources++
// Skip traversal of the resource itself.
return v, dyn.ErrSkip
})
if err != nil {
return nil, err
}
// We explicitly set "resource" to nil to omit it from a JSON encoding.
// This is required because the terraform CLI requires >= 1 resources defined
// if the "resource" property is used in a .tf.json file.
if numResources == 0 {
tfroot.Resource = nil
}
return tfroot, nil
}
func TerraformToBundle(state *resourcesState, config *config.Root) error {
for _, resource := range state.Resources {
if resource.Mode != tfjson.ManagedResourceMode {
continue
}
for _, instance := range resource.Instances {
switch resource.Type {
case "databricks_job":
if config.Resources.Jobs == nil {
config.Resources.Jobs = make(map[string]*resources.Job)
}
cur := config.Resources.Jobs[resource.Name]
if cur == nil {
cur = &resources.Job{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Jobs[resource.Name] = cur
case "databricks_pipeline":
if config.Resources.Pipelines == nil {
config.Resources.Pipelines = make(map[string]*resources.Pipeline)
}
cur := config.Resources.Pipelines[resource.Name]
if cur == nil {
cur = &resources.Pipeline{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Pipelines[resource.Name] = cur
case "databricks_mlflow_model":
if config.Resources.Models == nil {
config.Resources.Models = make(map[string]*resources.MlflowModel)
}
cur := config.Resources.Models[resource.Name]
if cur == nil {
cur = &resources.MlflowModel{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Models[resource.Name] = cur
case "databricks_mlflow_experiment":
if config.Resources.Experiments == nil {
config.Resources.Experiments = make(map[string]*resources.MlflowExperiment)
}
cur := config.Resources.Experiments[resource.Name]
if cur == nil {
cur = &resources.MlflowExperiment{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Experiments[resource.Name] = cur
case "databricks_model_serving":
if config.Resources.ModelServingEndpoints == nil {
config.Resources.ModelServingEndpoints = make(map[string]*resources.ModelServingEndpoint)
}
cur := config.Resources.ModelServingEndpoints[resource.Name]
if cur == nil {
cur = &resources.ModelServingEndpoint{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.ModelServingEndpoints[resource.Name] = cur
case "databricks_registered_model":
if config.Resources.RegisteredModels == nil {
config.Resources.RegisteredModels = make(map[string]*resources.RegisteredModel)
}
cur := config.Resources.RegisteredModels[resource.Name]
if cur == nil {
cur = &resources.RegisteredModel{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.RegisteredModels[resource.Name] = cur
case "databricks_quality_monitor":
if config.Resources.QualityMonitors == nil {
config.Resources.QualityMonitors = make(map[string]*resources.QualityMonitor)
}
cur := config.Resources.QualityMonitors[resource.Name]
if cur == nil {
cur = &resources.QualityMonitor{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.QualityMonitors[resource.Name] = cur
case "databricks_schema":
if config.Resources.Schemas == nil {
config.Resources.Schemas = make(map[string]*resources.Schema)
}
cur := config.Resources.Schemas[resource.Name]
if cur == nil {
cur = &resources.Schema{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Schemas[resource.Name] = cur
case "databricks_cluster":
if config.Resources.Clusters == nil {
config.Resources.Clusters = make(map[string]*resources.Cluster)
}
cur := config.Resources.Clusters[resource.Name]
if cur == nil {
cur = &resources.Cluster{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Clusters[resource.Name] = cur
case "databricks_dashboard":
if config.Resources.Dashboards == nil {
config.Resources.Dashboards = make(map[string]*resources.Dashboard)
}
cur := config.Resources.Dashboards[resource.Name]
if cur == nil {
cur = &resources.Dashboard{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Dashboards[resource.Name] = cur
case "databricks_app":
if config.Resources.Apps == nil {
config.Resources.Apps = make(map[string]*resources.App)
}
cur := config.Resources.Apps[resource.Name]
if cur == nil {
cur = &resources.App{ModifiedStatus: resources.ModifiedStatusDeleted}
}
cur.ID = instance.Attributes.ID
config.Resources.Apps[resource.Name] = cur
case "databricks_permissions":
case "databricks_grants":
// Ignore; no need to pull these back into the configuration.
default:
return fmt.Errorf("missing mapping for %s", resource.Type)
}
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}
}
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for _, src := range config.Resources.Jobs {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.Pipelines {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.Models {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.Experiments {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.ModelServingEndpoints {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.RegisteredModels {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
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}
}
for _, src := range config.Resources.QualityMonitors {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.Schemas {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.Clusters {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.Dashboards {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
for _, src := range config.Resources.Apps {
if src.ModifiedStatus == "" && src.ID == "" {
src.ModifiedStatus = resources.ModifiedStatusCreated
}
}
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return nil
}