Commit Graph

5 Commits

Author SHA1 Message Date
Pieter Noordhuis 87dd46a3f8
Use dynamic configuration model in bundles ()
## Changes

This is a fundamental change to how we load and process bundle
configuration. We now depend on the configuration being represented as a
`dyn.Value`. This representation is functionally equivalent to Go's
`any` (it is variadic) and allows us to capture metadata associated with
a value, such as where it was defined (e.g. file, line, and column). It
also allows us to represent Go's zero values properly (e.g. empty
string, integer equal to 0, or boolean false).

Using this representation allows us to let the configuration model
deviate from the typed structure we have been relying on so far
(`config.Root`). We need to deviate from these types when using
variables for fields that are not a string themselves. For example,
using `${var.num_workers}` for an integer `workers` field was impossible
until now (though not implemented in this change).

The loader for a `dyn.Value` includes functionality to capture any and
all type mismatches between the user-defined configuration and the
expected types. These mismatches can be surfaced as validation errors in
future PRs.

Given that many mutators expect the typed struct to be the source of
truth, this change converts between the dynamic representation and the
typed representation on mutator entry and exit. Existing mutators can
continue to modify the typed representation and these modifications are
reflected in the dynamic representation (see `MarkMutatorEntry` and
`MarkMutatorExit` in `bundle/config/root.go`).

Required changes included in this change:
* The existing interpolation package is removed in favor of
`libs/dyn/dynvar`.
* Functionality to merge job clusters, job tasks, and pipeline clusters
are now all broken out into their own mutators.

To be implemented later:
* Allow variable references for non-string types.
* Surface diagnostics about the configuration provided by the user in
the validation output.
* Some mutators use a resource's configuration file path to resolve
related relative paths. These depend on `bundle/config/paths.Path` being
set and populated through `ConfigureConfigFilePath`. Instead, they
should interact with the dynamically typed configuration directly. Doing
this also unlocks being able to differentiate different base paths used
within a job (e.g. a task override with a relative path defined in a
directory other than the base job).

## Tests

* Existing unit tests pass (some have been modified to accommodate)
* Integration tests pass
2024-02-16 19:41:58 +00:00
Pieter Noordhuis d225d7a662
Confirm that override with a zero value doesn't work ()
## Changes

This is not desirable and will be addressed by representing our
configuration in a different structure (e.g. with cty, or with
plain `any`), instead of Go structs.

## Tests

Pass.
2023-08-16 11:28:57 +00:00
Pieter Noordhuis 8dc6936581
Merge artifacts and resources block with overrides enabled ()
## Changes

Originally, these blocks were merged with overrides. This was
(inadvertently) disabled in . This change re-enables merging these
blocks with overrides, such that any field set in an environment
override always takes precedence over the field set in the base
definition.

## Tests

New unit test passes.
2023-08-15 09:58:54 +00:00
Fabian Jakobs 8cfb1c133e
First look for databricks.yml before falling back to bundle.yml ()
## Changes
* Add support for using `databricks.yml` as config file. If
`databricks.yml` is not found then falling back to `bundle.yml` for
backwards compatibility.
* Add support for `.yaml` extension.
* Give an error when more than one config file is found

## Tests
* added unit test
* manual testing the different cases

---------

Co-authored-by: Pieter Noordhuis <pieter.noordhuis@databricks.com>
2023-07-18 12:16:34 +02:00
Pieter Noordhuis b88b35a510
Move mutator interface to top level bundle package ()
While working on artifact upload and workspace interrogation I realized
this mutator interface needs to:
1. Operate at the whole bundle level so it can apply to both
configuration and internal state
2. Include a `context.Context` parameter for a) long running operations
and b) progress reporting

Previous interface:
```
Apply(*config.Root) ([]Mutator, error)
```

New interface:
```
Apply(context.Context, *Bundle) ([]Mutator, error)
```
2022-11-28 10:59:43 +01:00