preview-image-cleanup.yml

name: Preview Image Cleanup

on:
  workflow_dispatch: {}
  schedule:
    - cron: '0 5 * * *'

permissions:
  packages: write

jobs:
  preview-image:
    runs-on: ubuntu-latest
    env:
      PACKAGE_NAME: netzgrafik-editor-backend-preview
      PR_TAG_PREFIX: pr
    steps:
      # Deletes all container images from closed pull requests
      - uses: actions/github-script@v7
        with:
          script: |
            const { owner, repo } = context.repo;
            const pullRequests = await github.paginate(
              github.rest.pulls.list.endpoint.merge({ owner, repo })
            );
            const isExpiredPrTag = (version) => {
              const prNumber = +version.metadata?.container?.tags
                ?.find((t) => t.startsWith(process.env.PR_TAG_PREFIX))?.split(process.env.PR_TAG_PREFIX)[1];
              return !!prNumber && !pullRequests.find((p) => p.number === prNumber);
            };

            const params = {
              package_type: 'container',
              package_name: `${process.env.PACKAGE_NAME}`,
              username: owner
            };
            const { data: versions } = await github.rest.packages.getAllPackageVersionsForPackageOwnedByUser(params);
            let packageDeletionFailed = false;
            for (const version of versions.filter(isExpiredPrTag)) {
              try {
                await github.rest.packages.deletePackageVersionForUser({ ...params, package_version_id: version.id });
                console.log(`Deleted ${version.name} (${version.metadata.container.tags.join(', ')})`);
              } catch(e) {
                console.error(`Failed to delete ${version.name} (${version.metadata.container.tags.join(', ')})`);
                console.error(e);
                packageDeletionFailed = true;
              }
            }

            if (packageDeletionFailed) {
              throw new Error('A package deletion failed, please check the log.');
            }

      # Deletes all container images without a tag
      - uses: actions/delete-package-versions@v4
        with:
          package-name: ${{ env.PACKAGE_NAME }}
          package-type: 'container'
          delete-only-untagged-versions: 'true'