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Merged
ncipollina merged 1 commit into from
Jul 22, 2026
+10 −2
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ci(github): use app token for dependabot merges #51

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12 changes: 10 additions & 2 deletions .github/workflows/dependabot-auto-merge.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -19,16 +19,24 @@ jobs:
with:
github-token: "${{ secrets.GITHUB_TOKEN }}"

- name: Generate app token
id: app-token
if: steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor'
uses: actions/create-github-app-token@fee1f7d63c2ff003460e3d139729b119787bc349 # v2
with:
app-id: ${{ secrets.DEPENDABOT_AUTOMERGE_APP_ID }}
private-key: ${{ secrets.DEPENDABOT_AUTOMERGE_PRIVATE_KEY }}
Comment on lines +27 to +28

@chatgpt-codex-connector chatgpt-codex-connector Bot Jul 22, 2026

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P1 Badge Avoid unavailable secrets in Dependabot target

For the opened/synchronize events this workflow is meant to automate, Dependabot is the actor, and this pull_request_target job is gated to Dependabot-authored PRs; GitHub documents that in this case the workflow receives a read-only token and “secrets are not available” (https://docs.github.com/en/code-security/reference/supply-chain-security/dependabot-on-actions#restrictions-when-dependabot-triggers-events). These inputs therefore resolve empty on normal Dependabot PRs, causing token generation to fail before approval/auto-merge; the app-token step needs to run from a trusted non-Dependabot-triggered workflow (for example a workflow_run) or another trigger where the app credentials are available.

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- name: Approve PR
if: steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor'
run: gh pr review --approve "$PR_URL"
env:
PR_URL: ${{ github.event.pull_request.html_url }}
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
GH_TOKEN: ${{ steps.app-token.outputs.token }}

- name: Enable auto-merge for Dependabot PRs
if: steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor'
run: gh pr merge --auto --squash "$PR_URL"
env:
PR_URL: ${{ github.event.pull_request.html_url }}
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
GH_TOKEN: ${{ steps.app-token.outputs.token }}
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