Deploy Existing Release #2
Workflow file for this run
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| name: Deploy Existing Release | |
| on: | |
| workflow_dispatch: | |
| # Ensure only one instance of either this or the publish workflow is running at a time | |
| # This ensures that we don't put production into an inconsistent state | |
| concurrency: | |
| group: 'prod-deployment' | |
| jobs: | |
| deploy: | |
| runs-on: ubuntu-latest | |
| permissions: | |
| packages: write | |
| contents: write # Write is required to create/update releases | |
| steps: | |
| - name: Ensure pre-requisites for deployment are met | |
| id: validate_deployment | |
| uses: actions/github-script@v7 | |
| with: | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| script: | | |
| const { owner, repo } = context.repo; | |
| /* | |
| * We load 20 releases here, it's unlikely that we will want to roll back | |
| * to a release older than that. | |
| */ | |
| const PAGE_SIZE = 20; | |
| const releases = await github.rest.repos.listReleases({ | |
| owner, | |
| repo, | |
| per_page: PAGE_SIZE, | |
| }); | |
| /* | |
| * Pre-releases should not be considered for deployment here, the `publish-new-release` action | |
| * should be used instead. | |
| */ | |
| const availableReleases = releases.data.filter((release) => !release.prerelease); | |
| const targetRelease = availableReleases.find( | |
| (release) => release.tag_name === "${{github.ref_name}}" | |
| ); | |
| if (!targetRelease) { | |
| throw new Error(`No recent release found for tag: ${{github.ref_name}}`); | |
| } | |
| console.log( | |
| `Found release ${targetRelease.id}, proceeding with deployment: ${targetRelease.html_url}` | |
| ); | |
| return targetRelease.id; | |
| - name: Log in to the Container registry | |
| uses: docker/login-action@v3 | |
| with: | |
| registry: ghcr.io | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Deploy to Production | |
| # To emulate deployments here we are simply shifting the latest tag to the appropriate docker image. | |
| # In a real world scenario, you would replace this with your actual deployment steps. | |
| run: | | |
| docker pull ghcr.io/${{ github.repository }}:${{github.ref_name}} | |
| docker tag ghcr.io/${{ github.repository }}:${{github.ref_name}} ghcr.io/${{ github.repository }}:latest | |
| docker push ghcr.io/${{ github.repository }}:latest | |
| - name: Update latest pointer | |
| uses: actions/github-script@v7 | |
| with: | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| script: | | |
| const { owner, repo } = context.repo; | |
| const previousLatestRelease = await github.rest.repos.getLatestRelease({ | |
| owner, | |
| repo, | |
| }); | |
| await github.rest.repos.updateRelease({ | |
| owner, | |
| repo, | |
| release_id: previousLatestRelease.data.id, | |
| make_latest: false | |
| }); | |
| await github.rest.repos.updateRelease({ | |
| owner, | |
| repo, | |
| release_id: ${{ steps.validate_deployment.outputs.result }}, | |
| make_latest: true | |
| }); |