Build & Upload Docker Image workflow (mietzen/porkbun-ddns)

The Build & Upload Docker Image workflow from mietzen/porkbun-ddns, explained and optimized by Latchkey.

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Source: mietzen/porkbun-ddns.github/workflows/docker.ymlLicense MITView source

What it does

This is the Build & Upload Docker Image workflow from the mietzen/porkbun-ddns repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: Build & Upload Docker Image

on:
  pull_request:
  release:
    types: [published]

jobs:
  Setup:
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.set-matrix.outputs.version }}
      build_matrix: ${{ steps.set-matrix.outputs.build_matrix }}
    steps:
    - name: Checkout
      uses: actions/checkout@v7
      with:
        fetch-depth: 0
    - name: Setup Matrix-Jobs
      id: set-matrix
      env:
        VERSION: ${{ github.ref_name }}
        GITHUB_EVENT_NAME: ${{ github.event_name }}
      run: |
        echo "Run triggered by: ${GITHUB_EVENT_NAME}"
        if grep -c -E '^v[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}$' <<< ${VERSION}; then
          VERSION=$(sed 's/^.\{1\}//g' <<< ${VERSION})
        else
          if [[ ${GITHUB_EVENT_NAME} != 'pull_request' ]]; then
            echo "This branch shouldn't be build: ${VERSION}"
            exit 1
          else
            VERSION='0.0.0'
          fi
        fi
        echo "version=$(echo ${VERSION})" >> $GITHUB_OUTPUT
        echo "build_matrix=$(cat .github/platforms.json)" >> $GITHUB_OUTPUT

  Build:
    runs-on: ubuntu-latest
    needs: Setup
    strategy:
      fail-fast: false
      matrix:
        ${{ insert }}: ${{ fromJson(needs.Setup.outputs.build_matrix) }}
    steps:
    - name: Checkout
      uses: actions/checkout@v7

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v4

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v4

    - name: Install Perquisites
      run: |
        curl -L https://omnitruck.cinc.sh/install.sh | sudo bash -s -- -P cinc-auditor -v 5

    - name: Build
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        PLATFORM: ${{ matrix.platforms }}
        VERSION: ${{ needs.Setup.outputs.version }}
      run: |
        ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
        echo ""
        echo "============================================================="
        echo "Building: ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        echo "============================================================="
        echo ""
        docker buildx build \
          --tag "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" \
          --platform ${PLATFORM} \
          --build-arg PORKBUN_DDNS_VERSION=${VERSION} \
          --load \
          -f ./Docker/Dockerfile .

    - name: Test
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        PLATFORM: ${{ matrix.platforms }}
        VERSION: ${{ needs.Setup.outputs.version }}
      working-directory: './Docker'
      run: |
        set -a
        ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
        echo ""
        echo "============================================================="
        echo "Testing: ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        echo "============================================================="
        echo ""
        exec ./test/test.sh
        echo ""

    - name: Login to Docker Hub
      if: github.event_name == 'release'
      uses: docker/login-action@v4
      with:
        username: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        password: ${{ secrets.DOCKER_HUB_DEPLOY_KEY }}

    - name: Push Images
      if: github.event_name == 'release'
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        PLATFORM: ${{ matrix.platforms }}
        VERSION: ${{ needs.Setup.outputs.version }}
      run: |
        ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
        echo ""
        echo "============================================================="
        echo "Pushing: ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        echo "============================================================="
        echo ""
        docker tag "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}"
        docker tag "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" "${DOCKER_USER}/porkbun-ddns:${ARCH}"
        docker push "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        docker push "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}"
        docker push "${DOCKER_USER}/porkbun-ddns:${ARCH}"

  Shared-Manifest:
    if: github.event_name == 'release'
    runs-on: ubuntu-latest
    needs:
      - Build
      - Setup
    steps:
    - name: Checkout
      uses: actions/checkout@v7

    - name: Login to Docker Hub
      uses: docker/login-action@v4
      with:
        username: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        password: ${{ secrets.DOCKER_HUB_DEPLOY_KEY }}

    - name: Create and push shared manifest
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        VERSION: ${{ needs.Setup.outputs.version }}
      run: |
        echo ""
        echo "============================================================="
        echo "Pushing shared manifest: ${DOCKER_USER}/porkbun-ddns:${VERSION}"
        echo "============================================================="
        echo ""
        echo "#!/bin/bash" > push-shared-tags.sh
        echo -n "docker manifest create ${DOCKER_USER}/porkbun-ddns:${VERSION}" >> push-shared-tags.sh
        while read -r PLATFORM; do
          ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
          echo -n " ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" >> push-shared-tags.sh
        done <<< "$(cat .github/platforms.json | jq -r '.platforms | join("\n")')"
        echo "" >> push-shared-tags.sh
        echo -n "docker manifest create ${DOCKER_USER}/porkbun-ddns:latest" >> push-shared-tags.sh
        while read -r PLATFORM; do
          ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
          echo -n " ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" >> push-shared-tags.sh
        done <<< "$(cat .github/platforms.json | jq -r '.platforms | join("\n")')"
        echo "" >> push-shared-tags.sh
        echo "docker manifest push ${DOCKER_USER}/porkbun-ddns:${VERSION}" >> push-shared-tags.sh
        echo "docker manifest push ${DOCKER_USER}/porkbun-ddns:latest" >> push-shared-tags.sh
        cat push-shared-tags.sh
        chmod +x ./push-shared-tags.sh
        ./push-shared-tags.sh

  Check-Build:
    if: ${{ always() }}
    runs-on: ubuntu-latest
    needs:
      - Build
      - Shared-Manifest
    steps:
      - run: |
          result="${{ needs.Build.result }}"
          if [[ $result == "success" || $result == "skipped" ]]; then
            exit 0
          else
            exit 1
          fi

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: Build & Upload Docker Image
 
on:
  pull_request:
  release:
    types: [published]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  Setup:
    timeout-minutes: 30
    runs-on: latchkey-small
    outputs:
      version: ${{ steps.set-matrix.outputs.version }}
      build_matrix: ${{ steps.set-matrix.outputs.build_matrix }}
    steps:
    - name: Checkout
      uses: actions/checkout@v7
      with:
        fetch-depth: 0
    - name: Setup Matrix-Jobs
      id: set-matrix
      env:
        VERSION: ${{ github.ref_name }}
        GITHUB_EVENT_NAME: ${{ github.event_name }}
      run: |
        echo "Run triggered by: ${GITHUB_EVENT_NAME}"
        if grep -c -E '^v[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}$' <<< ${VERSION}; then
          VERSION=$(sed 's/^.\{1\}//g' <<< ${VERSION})
        else
          if [[ ${GITHUB_EVENT_NAME} != 'pull_request' ]]; then
            echo "This branch shouldn't be build: ${VERSION}"
            exit 1
          else
            VERSION='0.0.0'
          fi
        fi
        echo "version=$(echo ${VERSION})" >> $GITHUB_OUTPUT
        echo "build_matrix=$(cat .github/platforms.json)" >> $GITHUB_OUTPUT
 
  Build:
    timeout-minutes: 30
    runs-on: latchkey-small
    needs: Setup
    strategy:
      fail-fast: false
      matrix:
        ${{ insert }}: ${{ fromJson(needs.Setup.outputs.build_matrix) }}
    steps:
    - name: Checkout
      uses: actions/checkout@v7
 
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v4
 
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v4
 
    - name: Install Perquisites
      run: |
        curl -L https://omnitruck.cinc.sh/install.sh | sudo bash -s -- -P cinc-auditor -v 5
 
    - name: Build
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        PLATFORM: ${{ matrix.platforms }}
        VERSION: ${{ needs.Setup.outputs.version }}
      run: |
        ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
        echo ""
        echo "============================================================="
        echo "Building: ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        echo "============================================================="
        echo ""
        docker buildx build \
          --tag "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" \
          --platform ${PLATFORM} \
          --build-arg PORKBUN_DDNS_VERSION=${VERSION} \
          --load \
          -f ./Docker/Dockerfile .
 
    - name: Test
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        PLATFORM: ${{ matrix.platforms }}
        VERSION: ${{ needs.Setup.outputs.version }}
      working-directory: './Docker'
      run: |
        set -a
        ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
        echo ""
        echo "============================================================="
        echo "Testing: ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        echo "============================================================="
        echo ""
        exec ./test/test.sh
        echo ""
 
    - name: Login to Docker Hub
      if: github.event_name == 'release'
      uses: docker/login-action@v4
      with:
        username: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        password: ${{ secrets.DOCKER_HUB_DEPLOY_KEY }}
 
    - name: Push Images
      if: github.event_name == 'release'
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        PLATFORM: ${{ matrix.platforms }}
        VERSION: ${{ needs.Setup.outputs.version }}
      run: |
        ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
        echo ""
        echo "============================================================="
        echo "Pushing: ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        echo "============================================================="
        echo ""
        docker tag "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}"
        docker tag "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" "${DOCKER_USER}/porkbun-ddns:${ARCH}"
        docker push "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}"
        docker push "${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}"
        docker push "${DOCKER_USER}/porkbun-ddns:${ARCH}"
 
  Shared-Manifest:
    timeout-minutes: 30
    if: github.event_name == 'release'
    runs-on: latchkey-small
    needs:
      - Build
      - Setup
    steps:
    - name: Checkout
      uses: actions/checkout@v7
 
    - name: Login to Docker Hub
      uses: docker/login-action@v4
      with:
        username: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        password: ${{ secrets.DOCKER_HUB_DEPLOY_KEY }}
 
    - name: Create and push shared manifest
      env:
        DOCKER_USER: ${{ vars.DOCKER_HUB_USERNAME || 'user' }}
        BUILD_NR: ${{ github.run_number }}
        VERSION: ${{ needs.Setup.outputs.version }}
      run: |
        echo ""
        echo "============================================================="
        echo "Pushing shared manifest: ${DOCKER_USER}/porkbun-ddns:${VERSION}"
        echo "============================================================="
        echo ""
        echo "#!/bin/bash" > push-shared-tags.sh
        echo -n "docker manifest create ${DOCKER_USER}/porkbun-ddns:${VERSION}" >> push-shared-tags.sh
        while read -r PLATFORM; do
          ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
          echo -n " ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" >> push-shared-tags.sh
        done <<< "$(cat .github/platforms.json | jq -r '.platforms | join("\n")')"
        echo "" >> push-shared-tags.sh
        echo -n "docker manifest create ${DOCKER_USER}/porkbun-ddns:latest" >> push-shared-tags.sh
        while read -r PLATFORM; do
          ARCH=$(echo "${PLATFORM}" | awk -F  "/" '{print $2$3}')
          echo -n " ${DOCKER_USER}/porkbun-ddns:${VERSION}-${ARCH}-${BUILD_NR}" >> push-shared-tags.sh
        done <<< "$(cat .github/platforms.json | jq -r '.platforms | join("\n")')"
        echo "" >> push-shared-tags.sh
        echo "docker manifest push ${DOCKER_USER}/porkbun-ddns:${VERSION}" >> push-shared-tags.sh
        echo "docker manifest push ${DOCKER_USER}/porkbun-ddns:latest" >> push-shared-tags.sh
        cat push-shared-tags.sh
        chmod +x ./push-shared-tags.sh
        ./push-shared-tags.sh
 
  Check-Build:
    timeout-minutes: 30
    if: ${{ always() }}
    runs-on: latchkey-small
    needs:
      - Build
      - Shared-Manifest
    steps:
      - run: |
          result="${{ needs.Build.result }}"
          if [[ $result == "success" || $result == "skipped" ]]; then
            exit 0
          else
            exit 1
          fi

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Add a job timeout so a hung step cannot burn hours of runner time.

3 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

Container pulls and builds
Network fetches

This workflow runs 4 jobs per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout docker/setup-qemu-action docker/setup-buildx-action docker/login-action