Backport of New login success output for TFC/E into v0.15 #28487
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Backport
This PR is auto-generated from #28479 to be assessed for backporting due to the inclusion of the label 0.15-backport.
The below text is copied from the body of the original PR.
When logging in to Terraform Cloud or Terraform Enterprise, this changes the success output to be a bit more customized for the platform. For Terraform Cloud, fetch a dynamic welcome banner that intentionally fails open and defaults to a hardcoded message if it's not available for any reason.
Additionally, after some research to ensure that adding a code for 256 color terminals shouldn't be a problem, I've added a Terraform purple color code to the default list of colorstring codes.
Screenshots
Logging in to Terraform Cloud:
Logging in to Terraform Cloud (a failure case with trace logging enabled):
Logging in to Terraform Enterprise: