feat: initial release #1
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| name: Build Container | ||
| on: | ||
| push: | ||
| branches: | ||
| - main | ||
| schedule: | ||
| - cron: 40 30 * * 0 | ||
| jobs: | ||
| build: | ||
| runs-on: ubuntu-24.04 # uses podman from 24.04 or later | ||
| env: | ||
| REGISTRY: ghcr.io | ||
| IMAGE: ghcr.io/${{ github.repository_owner }}/signal-proxy | ||
| IMGCACHE_PATH: image_cache.tar | ||
| # building using docker format is required to make builds | ||
| # find cached build layers after a save/load cycle | ||
| BUILDAH_FORMAT: docker | ||
| steps: | ||
| - env: | ||
| USERNAME: ${{ github.actor }} | ||
| PASSWORD: ${{ secrets.GITHUB_TOKEN }} | ||
| run: printenv PASSWORD | podman login -v ${{ env.REGISTRY }} -u "$USERNAME" --password-stdin | ||
| - id: restore-cache | ||
| uses: actions/cache/restore@v4 | ||
| with: | ||
| # we can't precalculate the hash for a key so | ||
| # set an invalid key and fall back to the most recent cache | ||
| key: image-cache-INVALID | ||
| restore-keys: image-cache- | ||
| path: ${{ env.IMGCACHE_PATH }} | ||
| - name: Import images from cache | ||
| # skip step if no cache was restored | ||
| if: steps.restore-cache.outputs.cache-matched-key != '' | ||
| continue-on-error: true | ||
| run: | | ||
| podman load -i "${IMGCACHE_PATH:?}" \ | ||
| || echo "::warning::Failure while importing images from cache" | ||
| echo | ||
| echo "Image Status:" | ||
| podman image list | ||
| echo "IMPORTED_CONTAINERS=$(podman image list -q --sort id | xargs)" >> "$GITHUB_ENV" | ||
| - uses: actions/checkout@v4 | ||
| # TODO: switch to --pull=newer once supported https://github.com/containers/podman/issues/22845 | ||
| - run: podman build --pull=always -t ${{ env.IMAGE }} . | ||
| - run: podman push ${{ env.IMAGE }} | ||
| - if: ${{ !cancelled() }} # runs even if previous steps failed | ||
| run: podman logout ${{ env.REGISTRY }} | ||
| - id: export-cache | ||
| name: Export images to cache | ||
| continue-on-error: true | ||
| run: | | ||
| echo "Existing Images:" | ||
| podman image list | ||
| echo | ||
| rm -f "${IMGCACHE_PATH:?}" | ||
| if [ "$(podman image list -q --sort id | xargs)" = "$IMPORTED_CONTAINERS" ]; then | ||
| echo 'Images unchanged, skipping export!' | ||
| echo 'export-skipped=true' >> "$GITHUB_OUTPUT" | ||
| exit 0 | ||
| fi | ||
| echo "Saving Images:" | ||
| for tgt in $( | ||
| # list latest potential build cache images: dangling images that are the most | ||
| # recent ancestor of images that is still labeled (I.E. not untagged/replaced) | ||
| seen=" " | ||
| for img in $(podman image list -q --filter dangling=true); do | ||
| l_ancest=$( i="$img"; i="$(podman image inspect -f '{{ .Parent }}' "$i")"; while [ -n "$i" ]; do if [ "$(podman image inspect -f '{{ len .RepoTags }}' "$i")" -gt 0 ]; then echo "$i"; break; else i="$(podman image inspect -f '{{ .Parent }}' "$i")"; fi; done; ) | ||
| [ -z "$l_ancest" ] && continue | ||
| case "$seen" in (*" $l_ancest "*) continue ;; esac | ||
| seen="$seen$l_ancest " | ||
| echo "$img" | ||
| done | ||
| # labeled images | ||
| podman image list --filter dangling=false --format '{{ range .Names }}{{ . }} {{ end }}' | xargs -n 1 | sort -u | ||
| ); do | ||
| echo $( i="$tgt" ids=; while [ -n "$i" ]; do ids="$ids $i" i="$(podman image inspect -f '{{ .Parent }}' "$i")"; done; echo "$ids"; ) | ||
| done \ | ||
| | xargs -n 1 | sort -u \ | ||
| | tee /dev/stderr \ | ||
| | xargs podman save -m -o "${IMGCACHE_PATH:?}" \ | ||
| || echo "::error::Failure while exporting images to cache" | ||
| - uses: actions/cache/save@v4 | ||
| if: steps.export-cache.outcome == 'success' && !steps.export-cache.outputs.export-skipped && !endsWith(steps.restore-cache.outputs.cache-matched-key, hashFiles(env.IMGCACHE_PATH)) | ||
| with: | ||
| key: image-cache-${{ hashFiles(env.IMGCACHE_PATH) }} | ||
| path: ${{ env.IMGCACHE_PATH }} | ||
