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| name: Dependabot Pull Request Approve and Merge | |
| on: | |
| - pull_request_target | |
| permissions: | |
| pull-requests: write | |
| contents: write | |
| jobs: | |
| dependabot: | |
| runs-on: ubuntu-latest | |
| # Checking the actor will prevent your Action run failing on non-Dependabot | |
| # PRs but also ensures that it only does work for Dependabot PRs. | |
| if: ${{ github.actor == 'dependabot[bot]' }} | |
| steps: | |
| # This first step will fail if there's no metadata and so the approval | |
| # will not occur. | |
| - name: Dependabot metadata | |
| id: dependabot-metadata | |
| uses: dependabot/fetch-metadata@c9c4182bf1b97f5224aee3906fd373f6b61b4526 # v1.6.0 | |
| with: | |
| github-token: "${{ secrets.GITHUB_TOKEN }}" | |
| # Checkout repo to make package allow list available | |
| - name: Checkout | |
| uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0 | |
| # Use a YAML formatted config file to list which dependencies can be auto-merged | |
| - name: Read list of Allowed Auto-merge Dependencies | |
| id: dependabot-allow-list | |
| run: | | |
| echo "dependabot-allow-list=$(yq eval '.dependabot.allow-list | join(", ")' .github/workflows/config/config.yml)" >> $GITHUB_OUTPUT | |
| # Get the initial AWS IAM User credentials. Only has basic permissions for sts:assumeRole | |
| - name: Configure AWS credentials (1) | |
| uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1 | |
| with: | |
| aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }} | |
| aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }} | |
| aws-region: us-gov-west-1 | |
| # Get credentials from our SSM role. Least privilege method for AWS IAM. | |
| - name: Configure AWS Credentials (2) | |
| uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1 | |
| with: | |
| aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }} | |
| aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }} | |
| aws-region: us-gov-west-1 | |
| role-to-assume: ${{ secrets.AWS_VAGOV_CMS_PROD_READ_SSM_ROLE }} | |
| role-duration-seconds: 900 | |
| role-session-name: vsp-vagov-cms-githubaction | |
| # Get VA_CMS_BOT Github token from SSM. this will be used to approve a matching PR. | |
| - name: Get Parameter | |
| uses: department-of-veterans-affairs/action-inject-ssm-secrets@d8e6de3bde4dd728c9d732baef58b3c854b8c4bb # latest | |
| with: | |
| ssm_parameter: /cms/va-cms-bot/github_token | |
| env_variable_name: VA_CMS_BOT_TOKEN | |
| # Per Workflow secrets.GITHUB_TOKEN can't approve PRs | |
| # Instead lookup and use VA CMS BOT Token to do so. | |
| - name: Approve a PR | |
| if: ${{ contains(steps.dependabot-allow-list.outputs.dependabot-allow-list, steps.dependabot-metadata.outputs.dependency-names) }} | |
| run: gh pr review --approve "$PR_URL" | |
| env: | |
| PR_URL: ${{ github.event.pull_request.html_url }} | |
| GITHUB_TOKEN: ${{ env.VA_CMS_BOT_TOKEN }} | |
| # Finally, this sets the PR to allow auto-merging for only allowed dependencies | |
| - name: Enable auto-merge for Dependabot PRs | |
| if: ${{ contains(steps.dependabot-allow-list.outputs.dependabot-allow-list, steps.dependabot-metadata.outputs.dependency-names) }} | |
| run: gh pr merge --auto --squash "$PR_URL" | |
| env: | |
| PR_URL: ${{ github.event.pull_request.html_url }} | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} |