Azure DevOps Azure Federated Auth Task

Azure DevOps extension with a single task: AzureFederatedAuth@1.

The task requests an OIDC token for a selected AzureRM service connection and exports:

• ARM_OIDC_TOKEN (secret)
• ARM_TENANT_ID
• ARM_CLIENT_ID
• GIT_ACCESS_TOKEN (secret, optional)

Requirements

• Linux agents (YAML pipelines)
• Job setting that exposes OAuth token (System.AccessToken)
• AzureRM service connection with workload identity federation
• Visual Studio Marketplace publisher account (required to publish/share this extension, including org-only usage)

Build

./scripts/build.sh

This builds the TypeScript task and creates a .vsix extension package in build/.

Publish privately

Publishing (CLI or Web UI) uses the same model:

• Upload extension version under a Visual Studio Marketplace publisher
• Share that published extension with your Azure DevOps organization(s)

There is no direct local .vsix install path to an org that bypasses the publisher model.

AZDO_PAT='<your-pat>' ./scripts/publish.sh <vsix-path> <publisher-id> <org1> <org2> <org3>

Example:

AZDO_PAT="$AZDO_PAT" ./scripts/publish.sh ./build/skoszewski-lab.azuredevops-get-oidc-token-task-1.0.3.vsix skoszewski-lab org-a org-b org-c

Manual publish (Web UI)

You can publish the generated .vsix manually in the Visual Studio Marketplace publisher portal:

1. Build/package first (./scripts/build.sh) and note the .vsix path.
2. Open your publisher in Visual Studio Marketplace.
3. Upload the .vsix as a new extension version.
4. Share the published extension with the target Azure DevOps organization(s).

YAML usage

- task: AzureFederatedAuth@1
  inputs:
    serviceConnectionARM: 'my-arm-service-connection'
    setGitAccessToken: true

See examples/azure-pipelines-smoke.yml for a full smoke validation pipeline.

When setGitAccessToken: true, the task exchanges the OIDC assertion against Entra ID and requests scope 499b84ac-1321-427f-aa17-267ca6975798/.default, then sets GIT_ACCESS_TOKEN.