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docker image building and pushing to GitHub Packages #4309

docker image building and pushing to GitHub Packages

docker image building and pushing to GitHub Packages #4309

# This workflow is used for building and pushing Docker images to GitHub Packages.
# It is triggered on push, pull request events and also runs on a schedule (at 4:30 and 16:30).
# It uses the GitHub Container Registry (GHCR) for storing the Docker images.
name: docker image building and pushing to GitHub Packages
on:
push:
branches:
- '*' # Triggered on push to any branch
pull_request:
branches: [ '*' ] # Triggered on pull request to any branch
schedule:
- cron: '30 4,16 * * *' # Runs on a schedule at 4:30 and 16:30
env:
GHCR_USERNAME: ${{ github.repository_owner }} # The owner of the repository
GHCR_TOKEN: ${{ secrets.GHCR_TOKEN }} # The token for GHCR
jobs:
docker:
runs-on: ubuntu-latest # The type of machine to run the job on
steps:
- name: Check if PR is from a fork
# This step checks if the pull request is from a fork
run: |
if [ "${{ github.event_name }}" = "pull_request" ]; then
if [ '${{ github.event.pull_request.head.repo.full_name }}' != '${{ github.repository }}' ]; then
echo "IS_FORK=true" >> $GITHUB_ENV
else
echo "IS_FORK=false" >> $GITHUB_ENV
fi
else
echo "IS_FORK=false" >> $GITHUB_ENV
fi
- name: Checkout
# This step checks out the repository
uses: actions/checkout@v5
with:
fetch-depth: 0
- name: Retrieve modified files
# This step retrieves the files that were modified in the commit
id: changes
run: echo "files=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} | tr '\n' ' ')" >> $GITHUB_ENV
- name: Authenticate GH CLI
# This step authenticates the GitHub CLI
run: gh auth login --with-token <<< "${{ secrets.GITHUB_TOKEN }}"
- name: Commit and create PR for Docker versions
if: github.event_name != 'pull_request'
run: |
git config --global user.name 'GitHub Action'
git config --global user.email '[email protected]'
# Ensure we start from a clean main branch
git fetch origin main
git checkout main
git reset --hard origin/main
# Create unique branch name to avoid conflicts
BRANCH_NAME="docker-versions-update-$(date +%s)"
git checkout -b "$BRANCH_NAME"
# Write Docker versions to file
echo "- $(docker --version)" > docker-versions.txt
echo "- $(docker compose version)" >> docker-versions.txt
# Only add the specific file we want
git add docker-versions.txt
# Check if there are actually changes to commit
if git diff --cached --quiet; then
echo "No changes to docker-versions.txt, skipping PR creation"
else
# Check if an open PR already exists
EXISTING_PR=$(gh pr list --base main --state open --search "chore: update Docker versions in:title" --json number --jq '.[0].number // empty')
if [ -n "$EXISTING_PR" ]; then
echo "Open PR #$EXISTING_PR already exists for Docker version updates, skipping PR creation"
echo "You can view it at: $(gh pr view $EXISTING_PR --json url --jq '.url')"
else
git commit -m "chore: update Docker versions"
git push origin "$BRANCH_NAME"
# Create PR with explicit title and body instead of --fill
gh pr create --title "chore: update Docker versions" --body "Automated update of docker-versions.txt with current Docker and Docker Compose versions." --base main --head "$BRANCH_NAME" --base main --head "$BRANCH_NAME"
fi
fi
- name: Check for Dockerfile and context changes
# This step checks for changes in Dockerfile and context
run: |
HAS_DOCKER_CHANGES=false
for file in ${{ env.files }}; do
if [[ "$file" =~ (^|/)Dockerfile($|/)|(^|/)dockerfiles/ ]]; then
echo "Dockerfile or dockerfiles directory has changed: $file"
HAS_DOCKER_CHANGES=true
break
fi
done
echo "HAS_DOCKER_CHANGES=$HAS_DOCKER_CHANGES" >> $GITHUB_ENV
if [[ "$HAS_DOCKER_CHANGES" == "false" ]]; then
echo "No Dockerfile or context directory changes. Skipping Docker image build and push steps."
echo "Changed files: ${{ env.files }}"
fi
- name: Set up QEMU
# This step sets up QEMU
uses: docker/setup-qemu-action@v3
- name: Set up Docker Buildx
# This step sets up Docker Buildx
uses: docker/setup-buildx-action@v3
-
name: Login to GitHub Container Registry
# This step logs in to GHCR
if: env.HAS_DOCKER_CHANGES == 'true' && env.IS_FORK != 'true'
uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ env.GHCR_USERNAME }}
password: ${{ env.GHCR_TOKEN }}
- name: Extract branch name
# This step extracts the branch name
shell: bash
run: |
BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/} | sed -e 's#/#-#g')
if [[ "$BRANCH_NAME" == "main" ]]; then BRANCH_NAME=""; fi
echo "BRANCH=$BRANCH_NAME" >> $GITHUB_ENV
id: extract_branch
- name: Set repository name to lowercase
# This step sets the repository name to lowercase
run: echo "REPO_NAME=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
- name: Build and push a simple jenkins controller
# This step builds and pushes a simple Jenkins controller
if: (contains(env.files, 'dockerfiles/Dockerfile') || contains(env.files, 'dockerfiles/')) && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:simple_controller_${{ env.BRANCH }}
- name: Build and push the jenkins agent for maven tutorial
# This step builds and pushes the Jenkins agent for the Maven tutorial
if: contains(env.files, 'dockerfiles/maven/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/maven
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:maven_agent_${{ env.BRANCH }}
- name: Build and push the jenkins agent for python tutorial
# This step builds and pushes the Jenkins agent for the Python tutorial
if: contains(env.files, 'dockerfiles/python/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/python
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:python_agent_${{ env.BRANCH }}
- name: Build and push the jenkins agent for node tutorial
# This step builds and pushes the Jenkins agent for the Node.js tutorial
if: contains(env.files, 'dockerfiles/node/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/node
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:node_agent_${{ env.BRANCH }}
- name: Build and push the jenkins agent for the sidekick container
# This step builds and pushes the Jenkins agent for the sidekick container
if: contains(env.files, 'dockerfiles/sidekick/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/sidekick
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:sidekick_${{ env.BRANCH }}
- name: Build and push the jenkins agent for the agent-finding container
# This step builds and pushes the Jenkins agent for the agent-finding container
if: contains(env.files, 'dockerfiles/agent-discovery/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/agent-discovery/
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:agent_discovery_${{ env.BRANCH }}
- name: Build and push the jenkins agent for multi-branch controller
# This step builds and pushes the Jenkins agent for the multi-branch controller
if: contains(env.files, 'dockerfiles/multi/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/multi
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:multi_controller_${{ env.BRANCH }}
- name: Build and push the jenkins agent for Android
# This step builds and pushes the Jenkins agent for Android
if: contains(env.files, 'dockerfiles/android/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/android
platforms: linux/amd64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:android_${{ env.BRANCH }}
- name: Build and push the jenkins agent for golang tutorial
# This step builds and pushes the Jenkins agent for the Golang tutorial
if: contains(env.files, 'dockerfiles/golang/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/golang
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:golang_${{ env.BRANCH }}
- name: Build and push the jenkins agent for cpp tutorial
# This step builds and pushes the Jenkins agent for the C++ tutorial
if: contains(env.files, 'dockerfiles/cpp/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/cpp
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:cpp_${{ env.BRANCH }}
- name: Build and push the jenkins agent for dotnet tutorial
# This step builds and pushes the Jenkins agent for the .NET tutorial
if: contains(env.files, 'dockerfiles/dotnet/') && env.IS_FORK != 'true'
uses: docker/build-push-action@v6
with:
context: ./dockerfiles/dotnet
platforms: linux/amd64, linux/arm64
push: true
tags: ghcr.io/${{ env.REPO_NAME }}/jenkinsci-tutorials:dotnet_${{ env.BRANCH }}