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feat(ci): mint the App token via the in-cluster OIDC broker #4

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Merged
imlach merged 1 commit into from
Jul 3, 2026
Merged

feat(ci): mint the App token via the in-cluster OIDC broker #4

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26 changes: 17 additions & 9 deletions .github/workflows/cora-review.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,7 @@ permissions:
contents: read
pull-requests: write # post / edit the review comment
checks: write # POST/PATCH the verdict check-run
id-token: write # OIDC token for the App-token broker exchange

jobs:
review:
Expand All @@ -67,20 +68,27 @@ jobs:
# 20min covers T0 (360s) + T1 (600s) + headroom; review-large doubles
# T1 to 1200s, so the outer bound moves to 30 in lockstep.
timeout-minutes: ${{ contains(github.event.pull_request.labels.*.name, 'review-large') && 30 || 20 }}
env:
CORA_APP_ID: ${{ secrets.CORA_APP_ID }}
CORA_APP_PRIVATE_KEY: ${{ secrets.CORA_APP_PRIVATE_KEY }}
steps:
- name: Checkout
uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3

- name: Mint cora App token
- name: Mint cora App token via broker
# OIDC → in-cluster github-token-broker exchange: the job trades
# its Actions identity token for a ≤1h installation token scoped
# by the broker's trust policy. No App private key in this repo's
# secrets. The broker URL is a secret only because it's an
# internal hostname; soft-fails to GITHUB_TOKEN when unset or
# unreachable.
id: cora-app-token
if: ${{ env.CORA_APP_ID != '' && env.CORA_APP_PRIVATE_KEY != '' }}
uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
with:
app-id: ${{ env.CORA_APP_ID }}
private-key: ${{ env.CORA_APP_PRIVATE_KEY }}
if: ${{ env.BROKER_URL != '' }}
continue-on-error: true
env:
BROKER_URL: ${{ secrets.CORA_TOKEN_BROKER_URL }}
run: |
oidc=$(curl -sfS -H "Authorization: Bearer $ACTIONS_ID_TOKEN_REQUEST_TOKEN" "$ACTIONS_ID_TOKEN_REQUEST_URL&audience=imla-token-broker" | jq -r .value)
token=$(curl -sfS -m 10 -X POST -H "Authorization: Bearer $oidc" "$BROKER_URL" | jq -r .token)
echo "::add-mask::$token"
echo "token=$token" >> "$GITHUB_OUTPUT"

- name: Resolve agent venv
# Prefer the baked /opt/agent-venv from the self-hosted runner image
Expand Down