Core needs a way to address resources through unexpanded modules, as
they are present in the configuration. There are already some cases of
paring `addrs.Module` with `addrs.Resource` for this purpose, but it is
going to be helpful to have a single type to describe that pair, as
well as have the ability to use TargetContains.
Remove unused variables, sync.Once, and init in BuiltinEvalContext.
Replace some shim calls.
GraphNodeAttachProvider doesn't need to be a NodeModuleInstance.
This function can already produce suitable diagnostic messages which we'd
like to preserve, but it cannot produce source location information, and
so we'll amend the diagnostics to include that on the way out while
retaining all of the other values in the diagnostics.
Most of the time we're converting from HCL diagnostics to tfdiags as we
expose diagnostics directly from HCL, but occasionally we need to to the
reverse.
For example, our configs package uses hcl.Diagnostics by convention
because it's primarily working with HCL, but sometimes it interacts with
functions elsewhere (like in the "addrs" package) that return
tfdiags.Diagnostics, where they need to be adapted to return in an HCL
shape.
This should be used with some care because, similar to Diagnostics.ForRPC,
it forces immediate flattening of all of the diagnostics to a single
type and so can potentially lose internal tracking information that
appears in other tfdiags.Diagnostic information, such as the additional
metadata tracked in the ConsolidateWarnings result to allow later
appending to existing groups.
* configs: parse provider source string during module merge
This was the smallest unit of work needed to start writing provider
source tests!
* Update configs/parser_test.go
Co-Authored-By: Alisdair McDiarmid <alisdair@users.noreply.github.com>
Change ModuleInstance to Module in AbsProviderConfig, because providers
need to be handled before module expansion, and should not be used
defined inside an expanded module at all.
Renaming of the addrs type can happen later, when there's less work
in-flight around provider configuration.
Remove the requirement for most *Resource types to be a
GraphNodeModuleInstance, ensuring that they never call ctx.Path while
being evaluated. This gets rid of most of the direct need for the Path
method currently implemented by NodeResourceAbstract, leaving the
provider and schema related calls for a subsequent PR.
This adds more shimming into that node itself, but allows us to pull it
out of the config transformer, and ensure we can create the resources
correctly from the config. The shimmed address usage can then be raised
out of the abstract resource, into the expanded node types.
Using this in the same manner as NodePlannableOutput, which expands the
local values within modules. All thee output and local types are used in
both plan and apply, we may rename these to better reflect their usage
in expanding. That wait until we are certain that apply won't need any
extra machinery for handling values that aren't stored in the plan.
Unexpanded nodes can't implement GraphNodeModuleInstance (nee
GraphNodeSubPath), because they aren't aware how they have been
expanded, and may be in multiple distinct paths.
Since that means the EvalContext won't be in the correct path during the
walk, we just have to ensure that we don't use `ctx.Path()` inside Eval.
Since references are always within the scope of a single module, and we
can connect all module instance outputs for proper ordering, the
existing transformer works directly with only module paths as opposed to
module instances.
TODO: TransformApplyReferences for more precise module instance
targeting?
GraphNodeModulePath is similar to GraphNodeSubPath, except that it
returns an addrs.Module rather than an addrs.ModuleInstance. This is
used by the ReferenceTransformer to connect references, when modules may
not yet be expanded.
Because references only exist within the scope of a module, we can
connect everything knowing only the module path. If the reference is to
an expanded module instance output, we can still properly order the
reference because we'll wait for the entire module to complete
evaluation.
A typo in the config caused it to disagree with the plan on whether a
resource should be CreateBeforeDestroy, preventing it from being ordered
properly. Add the new CreateBeforeDestroy field to the test fixture
state as well for completeness.
* add Config to AttachSchemaTransformer for providerFqn lookup
* terraform: refactor ProvidedBy() to return nil when provider is not set
in config or state
We have some non-deterministic tests which flap the coverage up and down
slightly, but that should not set a failing status on PRs. This commit
sets a threshold of 0.5% coverage change to prevent this.
Something non-deterministic in the test suite is causing a coverage blip
in a line in the filesystem state manager. This commit adds a test which
specifically covers that line, which hopefully pleases the Codecov robot.
* terraform: refactor ProvidedBy() to return an addrs.ProviderConfig
interface
This refactor allows terraform to indicate whether a specific provider
configuration was found for the resource or if it is instead returning
the assumed default.
With that additional information the provider transformer can check if
there is a specific (non-default) provider FQN.
James Bardin