GitHub action OIDC Auth doesn't work with v2.28.0

[Satak]

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Terraform (and AzureAD Provider) Version

• Terraform version, latest
• AzureAD provider 2.28.0

Affected Resource(s)

OIDC auth

Terraform Configuration Files

provider "azuread" {}

env:
  ARM_CLIENT_ID: ${{ secrets.ARM_CLIENT_ID }}
  ARM_TENANT_ID: ${{ secrets.ARM_TENANT_ID }}
  ARM_SUBSCRIPTION_ID: ${{ secrets.ARM_SUBSCRIPTION_ID }}
  ARM_USE_OIDC: true
  TF_IN_AUTOMATION: true
  ARM_SKIP_PROVIDER_REGISTRATION: true

permissions:
  contents: read
  id-token: write
  issues: write
  pull-requests: write

Debug Output

Error: building client: unable to obtain access token: clientAssertionAuthorizer: cannot parse certificate: x509: malformed certificate

  with provider["registry.terraform.io/hashicorp/azuread"],
  on main.tf line 5, in provider "azuread":
   5: provider "azuread" {}

Expected Behavior

OIDC auth should work as 2.27

Actual Behavior

Can't run terraform plan or apply since the oidc auth from github action doesn't work with azuread provider 2.28. 2.27 works.

[Satak]

Is there any full documentation and example how to setup OIDC auth in GitHub actions for 2.28 version? Something changed since the old configuration doesn't work for 2.28.

[manicminer]

@Satak Thanks for reporting this. I've looked into it and it does seem like GitHub OIDC auth is unfortunately broken. I believe I've found the cause and we should be able to issue a patch release for this shortly.

[github-actions]

This functionality has been released in v2.28.1 of the Terraform Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.