Check, Build & Publish WSL2 Image #62
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| name: Check, Build & Publish WSL2 Image | |
| on: | |
| # Nightly check at 00:00 UTC | |
| schedule: | |
| - cron: '0 0 * * *' | |
| # Manual “Run workflow” button | |
| workflow_dispatch: | |
| # When you click “Publish release” in the UI | |
| release: | |
| types: [published] | |
| permissions: | |
| contents: write # required for tag push & gh‑release | |
| jobs: | |
| # ------------------------------------------------------------ | |
| # 1. Decide whether we need a new release tag | |
| # (runs on schedule or workflow‑dispatch, never on release) | |
| # ------------------------------------------------------------ | |
| check-and-release: | |
| if: github.event_name != 'release' | |
| runs-on: ubuntu-latest | |
| outputs: | |
| NEED_RELEASE: ${{ steps.decide.outputs.NEED_RELEASE }} | |
| NEW_TAG: ${{ steps.decide.outputs.NEW_TAG }} | |
| steps: | |
| - name: Checkout repository ⚡ | |
| uses: actions/checkout@v4 | |
| with: | |
| fetch-depth: 0 # get full history | |
| fetch-tags: true # still unreliable; we force‑fetch below | |
| - name: Ensure ALL tags are present | |
| run: git fetch --tags --prune --force | |
| - name: Get latest Containerlab version | |
| id: clab | |
| shell: bash | |
| run: | | |
| set -euo pipefail | |
| latest_url=$(curl -sLI -o /dev/null -w '%{url_effective}' \ | |
| https://github.com/srl-labs/containerlab/releases/latest) | |
| ver=${latest_url##*/} | |
| echo "CONTAINERLAB_VER=${ver#v}" >> "$GITHUB_OUTPUT" | |
| echo "Found Containerlab ${ver#v}" | |
| - name: Get latest WSL image tag | |
| id: current | |
| shell: bash | |
| run: | | |
| set -euo pipefail | |
| tag=$(git tag --list --sort=-v:refname | head -n1 || true) | |
| echo "LATEST_TAG=$tag" >> "$GITHUB_OUTPUT" | |
| if [[ -z "$tag" ]]; then | |
| echo "CONTAINERLAB_CUR=none" >> "$GITHUB_OUTPUT" | |
| echo "WSL_CUR=none" >> "$GITHUB_OUTPUT" | |
| exit 0 | |
| fi | |
| echo "Latest tag is $tag" | |
| echo "CONTAINERLAB_CUR=${tag%%-*}" >> "$GITHUB_OUTPUT" | |
| echo "WSL_CUR=${tag#*-}" >> "$GITHUB_OUTPUT" | |
| - name: Decide whether to cut a new tag | |
| id: decide | |
| shell: bash | |
| run: | | |
| set -euo pipefail | |
| need_release="false" | |
| new_clab="${{ steps.clab.outputs.CONTAINERLAB_VER }}" | |
| cur_clab="${{ steps.current.outputs.CONTAINERLAB_CUR }}" | |
| cur_wsl="${{ steps.current.outputs.WSL_CUR }}" | |
| new_wsl="1.0" | |
| bump_wsl () { | |
| local major=${cur_wsl%%.*} | |
| local minor=${cur_wsl#*.} | |
| new_wsl="${major}.$((minor+1))" | |
| } | |
| if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then | |
| need_release="true" | |
| [[ "$cur_clab" == "$new_clab" && "$cur_wsl" != "none" ]] && bump_wsl | |
| elif [[ "$cur_clab" == "none" ]]; then | |
| need_release="true" | |
| elif [[ "$cur_clab" != "$new_clab" ]]; then | |
| need_release="true" | |
| fi | |
| echo "NEED_RELEASE=$need_release" >> "$GITHUB_OUTPUT" | |
| if [[ "$need_release" == "true" ]]; then | |
| new_tag="${new_clab}-${new_wsl}" | |
| echo "NEW_TAG=$new_tag" >> "$GITHUB_OUTPUT" | |
| echo "Releasing $new_tag" | |
| else | |
| echo "No release required" | |
| fi | |
| - name: Create Git tag | |
| if: steps.decide.outputs.NEED_RELEASE == 'true' | |
| run: | | |
| git config --local user.email "[email protected]" | |
| git config --local user.name "GitHub Actions" | |
| git tag -a "${{ steps.decide.outputs.NEW_TAG }}" \ | |
| -m "Release ${{ steps.decide.outputs.NEW_TAG }}" | |
| git push origin "${{ steps.decide.outputs.NEW_TAG }}" | |
| - name: Draft GitHub Release | |
| if: steps.decide.outputs.NEED_RELEASE == 'true' | |
| uses: softprops/action-gh-release@v1 | |
| with: | |
| tag_name: ${{ steps.decide.outputs.NEW_TAG }} | |
| name: "Release ${{ steps.decide.outputs.NEW_TAG }}" | |
| body: | | |
| WSL2 image for Containerlab ${{ steps.clab.outputs.CONTAINERLAB_VER }} | |
| ${{ github.event_name == 'workflow_dispatch' && 'Manually triggered.' || 'Automated nightly release.' }} | |
| draft: false | |
| prerelease: false | |
| # ------------------------------------------------------------ | |
| # 2. Build & upload WSL image when we *have* a tag | |
| # ------------------------------------------------------------ | |
| build-and-publish: | |
| needs: check-and-release | |
| if: needs.check-and-release.outputs.NEED_RELEASE == 'true' || github.event_name == 'release' | |
| runs-on: ubuntu-22.04 | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: docker/setup-buildx-action@v2 | |
| - name: Build Docker image | |
| run: docker build . -t clab-wsl-debian | |
| - name: Export container filesystem ➜ .wsl | |
| run: | | |
| docker run -t --name wsl_export clab-wsl-debian ls / | |
| docker export wsl_export -o clab.tar | |
| docker rm wsl_export | |
| mv clab.tar clab.wsl | |
| - uses: actions/upload-artifact@v4 | |
| with: | |
| name: clab-wsl2 | |
| path: clab.wsl | |
| - name: Determine tag name | |
| id: tag | |
| run: | | |
| if [[ "${{ github.event_name }}" == "release" ]]; then | |
| echo "TAG=${GITHUB_REF##*/}" >> "$GITHUB_OUTPUT" | |
| else | |
| echo "TAG=${{ needs.check-and-release.outputs.NEW_TAG }}" >> "$GITHUB_OUTPUT" | |
| fi | |
| - name: Upload release asset | |
| uses: svenstaro/upload-release-action@v2 | |
| with: | |
| repo_token: ${{ secrets.GITHUB_TOKEN }} | |
| file: clab.wsl | |
| asset_name: clab-${{ steps.tag.outputs.TAG }}.wsl | |
| tag: ${{ steps.tag.outputs.TAG }} |