Concourse

Pipelines authenticate as the team and pipeline they belong to.

Identity proof

The token has to come from https://ci.acme.com, and its sub claim has to match the workload you named. We compare that claim byte for byte, with no wildcards.

Every token also has to name your workspace as its audience. Ask for this audience and no other. A token requested for two audiences fails every exchange.

Console fields

Field	Example	Advanced	What it pins
Concourse URL	`https://ci.acme.com`	no	The web node's `--external-url`, or its `--oidc-issuer-url` if set. Must be reachable from the internet.
Team	`main`	no
Pipeline	`deploy-api`	no

The console also asks which project and environment this identity reaches and which role it gets, with the credential lifetime behind Advanced.

Trust

Built from the example answers above:

What	Value
Issuer	`https://ci.acme.com`
Claim compared	`sub`
Subject	`main/deploy-api`
Identity name	`concourse-main-deploy-api`

We name the identity for you, so the form never asks for one.

Console snippet

var_sources:
  - name: penv
    type: idtoken
    config:
      # Ask for this audience and no other. A token requested for two audiences fails every exchange.
      audience: ["YOUR_WORKSPACE_ID"]
      subject_scope: pipeline

jobs:
  - name: deploy
    plan:
      - task: pull-secrets
        config:
          platform: linux
          # any image with curl, jq and penv
          image_resource: { type: registry-image, source: { repository: YOUR_IMAGE } }
          params:
            T: ((penv:token))
          run:
            path: sh
            args:
              - -c
              - |
                C=$(curl -sS "https://penv.cloud/api/v1/auth/oidc" \
                  -H 'content-type: application/json' \
                  -d "{\"token\":\"$T\"}" | jq -r .credential)
                PENV_TOKEN="$C" penv pull

The snippet finishes with penv pull, which writes a file. We recommend penv run for a process; penv pull is for a host that needs a file on disk. Connect your CI has the wrapped step.

Machine identity
Connect a Platform in the console
Concourse documentation: the subject is the value most often set wrong

Identity proof

Console fields

Trust

Console snippet

Related

On this page