* Add `component_type` optional field
to support specifying the exact build image when multiple images exist in the same provider and region for a given iteration
* update docs
* update docs
The comment was mentioning the name of an iteration Id, which is
conflicting.
This commit rephrases the comment to directly specify the ID of the
iteration.
In addition to the current way of specifying an image based on an
iteration on HCP Packer, which requires first declaring an iteration,
and then referencing it from the image to build, we add the capacity of
specifying a channel.
This alternative will get the iteration linked to the channel, and is
essentially a more convenient way to get an image's metadata from HCP
Packer.
This commit is essentially a backport from the Terraform HCP provider,
for consistency between the two tools.
create a null data source for testing. We can choose to document if we want to, but it's a convenience for us
add a test to catch cyclic datasource dependency, update tests to include out of order data sources, and update the code to clean up the returned diagnostics generated from the recursive evaluation
PR review comments
