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Add auto-depenabot workflow #122

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llucax merged 1 commit into from
Feb 16, 2026
Merged

Add auto-depenabot workflow #122

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29 changes: 29 additions & 0 deletions .github/workflows/auto-dependabot.yaml
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name: Auto-merge Dependabot PR

on:
pull_request:
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Copilot AI Feb 16, 2026

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This workflow is triggered on pull_request, but Dependabot-triggered workflows do not receive repository secrets. As a result, secrets.FREQUENZ_AUTO_DEPENDABOT_APP_* will be unavailable and the GitHub App token generation step will fail. Use pull_request_target (and keep the workflow from checking out/running PR code) so secrets are accessible in the base repo context, similar to .github/workflows/labeler.yml.

Suggested change
pull_request:
pull_request_target:
types:
- opened
- synchronize
- reopened

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@llucax llucax Feb 16, 2026

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This is actually a fair point, and I think we need to use pull_request_target in here as suggested. This workflow is not checking-out code, so it should be safe to use pull_request_target as we do in the labeler workflow as copilot suggests. I will submit a fix.


permissions:
contents: read
pull-requests: write

jobs:
auto-merge:
if: github.actor == 'dependabot[bot]'
runs-on: ubuntu-slim
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steps:
- name: Generate GitHub App token
id: app-token
uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
with:
app-id: ${{ secrets.FREQUENZ_AUTO_DEPENDABOT_APP_ID }}
private-key: ${{ secrets.FREQUENZ_AUTO_DEPENDABOT_APP_PRIVATE_KEY }}

- name: Auto-merge Dependabot PR
uses: frequenz-floss/dependabot-auto-approve@3cad5f42e79296505473325ac6636be897c8b8a1 # v1.3.2
with:
github-token: ${{ steps.app-token.outputs.token }}
dependency-type: 'all'
auto-merge: 'true'
merge-method: 'merge'
add-label: 'tool:auto-merged'