fix: use digest as tag when signing image #35
Workflow file for this run
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name: build-ublue | |
on: | |
pull_request: | |
merge_group: | |
schedule: | |
- cron: '0 15 * * *' # 3pm UTC everyday (timed against official fedora container pushes) | |
workflow_dispatch: | |
env: | |
IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }} | |
jobs: | |
build: | |
name: Build | |
runs-on: ubuntu-22.04 | |
permissions: | |
contents: read | |
packages: write | |
id-token: write | |
strategy: | |
fail-fast: false | |
matrix: | |
arch: [amd64, arm64] | |
version: [40, rawhide] | |
flavor: [base, silverblue] | |
steps: | |
# Checkout push-to-registry action GitHub repository | |
- name: Checkout Push to Registry action | |
uses: actions/checkout@v4 | |
- name: Generate tags | |
id: generate-tags | |
shell: bash | |
run: | | |
# Generate a timestamp for creating an image version history | |
TIMESTAMP="$(date +%Y%m%d)" | |
MAJOR_VERSION="$(echo ${{ matrix.version }} | cut -d . -f 1)" | |
COMMIT_TAGS=() | |
BUILD_TAGS=() | |
# Have tags for tracking builds during pull request | |
SHA_SHORT="${GITHUB_SHA::7}" | |
# Using clever bash string templating, https://stackoverflow.com/q/40771781 | |
# don't make malformed tags if $MAJOR_VERSION is empty (base-image didn't include proper labels) -- | |
COMMIT_TAGS+=("${SHA_SHORT}${MAJOR_VERSION:+-$MAJOR_VERSION}") | |
BUILD_TAGS=("${MAJOR_VERSION}" "${MAJOR_VERSION}-${{ matrix.arch }}" "${MAJOR_VERSION:+$MAJOR_VERSION-}${TIMESTAMP}" "${MAJOR_VERSION:+$MAJOR_VERSION-}${TIMESTAMP}-${{ matrix.arch }}") | |
# -- | |
if [ "${MAJOR_VERSION}" == "40" ]; then | |
BUILD_TAGS+=("${TIMESTAMP}") | |
BUILD_TAGS+=("latest-${{ matrix.arch }}") | |
fi | |
alias_tags=("${BUILD_TAGS[@]}") | |
echo "Generated the following build tags: " | |
for TAG in "${BUILD_TAGS[@]}"; do | |
echo "${TAG}" | |
done | |
echo "alias_tags=${alias_tags[*]}" >> $GITHUB_OUTPUT | |
# Build metadata | |
- name: Image Metadata | |
uses: docker/metadata-action@v5 | |
id: meta | |
with: | |
images: | | |
cosmic-${{ matrix.flavor }} | |
labels: | | |
org.opencontainers.image.title=cosmic-${{ matrix.flavor }} | |
org.opencontainers.image.version=${{ matrix.version }} | |
org.opencontainers.image.description=${{ env.description }} | |
io.artifacthub.package.readme-url=https://raw.githubusercontent.com/ublue-os/cosmic/main/README.md | |
io.artifacthub.package.logo-url=https://avatars.githubusercontent.com/u/120078124?s=200&v=4 | |
- name: Install qemu dependency | |
run: | | |
sudo apt-get update | |
sudo apt-get install -y qemu-user-static | |
# Build image using Buildah action | |
- name: Build Image | |
id: build_image | |
uses: redhat-actions/buildah-build@v2 | |
with: | |
containerfiles: | | |
Containerfile | |
image: cosmic-${{ matrix.flavor }} | |
tags: | | |
${{ steps.generate-tags.outputs.alias_tags }} | |
archs: ${{ matrix.arch }} | |
build-args: | | |
FEDORA_MAJOR_VERSION=${{ matrix.version }} | |
SOURCE_IMAGE=${{ matrix.flavor }} | |
oci: false | |
# Workaround bug where capital letters in your GitHub username make it impossible to push to GHCR. | |
# https://github.com/macbre/push-to-ghcr/issues/12 | |
- name: Lowercase Registry | |
id: registry_case | |
uses: ASzc/change-string-case-action@v6 | |
with: | |
string: ${{ env.IMAGE_REGISTRY }} | |
- name: Login to GitHub Container Registry | |
uses: docker/login-action@v3 | |
if: github.event_name != 'pull_request' | |
with: | |
registry: ghcr.io | |
username: ${{ github.actor }} | |
password: ${{ secrets.GITHUB_TOKEN }} | |
# Push the image to GHCR (Image Registry) | |
- name: Push To GHCR | |
uses: redhat-actions/push-to-registry@v2 | |
if: github.event_name != 'pull_request' | |
id: push | |
with: | |
registry: ${{ steps.registry_case.outputs.lowercase }} | |
image: ${{ steps.build_image.outputs.image }} | |
tags: ${{ steps.build_image.outputs.tags }} | |
# Sign container | |
- uses: sigstore/[email protected] | |
if: github.event_name != 'pull_request' | |
- name: Sign container image | |
if: github.event_name != 'pull_request' | |
run: | | |
cosign sign -y --key env://COSIGN_PRIVATE_KEY ${{ steps.registry_case.outputs.lowercase }}/${{ steps.build_image.outputs.image }}@${TAGS} | |
env: | |
TAGS: ${{ steps.push.outputs.digest }} | |
COSIGN_EXPERIMENTAL: false | |
COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }} | |
check: | |
name: Check all builds successful | |
if: ${{ !cancelled() }} | |
runs-on: ubuntu-latest | |
needs: [build] | |
steps: | |
- name: Exit on failure | |
if: ${{ needs.build.result == 'failure' }} | |
shell: bash | |
run: exit 1 | |
- name: Exit | |
shell: bash | |
run: exit 0 |