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Docker Image Build/Publish release image workflow (vtuber-plan/olah)

The Docker Image Build/Publish release image workflow from vtuber-plan/olah, explained and optimized by Latchkey.

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Source: vtuber-plan/olah.github/workflows/docker-image-tag-version.ymlLicense MITView source

What it does

This is the Docker Image Build/Publish release image workflow from the vtuber-plan/olah 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: Docker Image Build/Publish release image

on:
  workflow_run:
    workflows:
      - Build and publish release artifacts
    types:
      - completed
  workflow_dispatch:
    inputs:
      olah_version:
        description: Published Olah version already available on PyPI
        required: true
        default: 0.4.1

permissions:
  contents: read
  packages: write

concurrency:
  group: docker-release-${{ github.event.workflow_run.head_branch || github.event.inputs.olah_version }}
  cancel-in-progress: false

jobs:
  build-and-push-docker-image:
    name: Build release Docker image and push to registries
    if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
    runs-on: ubuntu-latest

    steps:
      - name: Determine package source and image tags
        env:
          DOCKERHUB_IMAGE: ${{ secrets.DOCKERHUB_USERNAME }}/olah
          GHCR_IMAGE: ghcr.io/${{ github.repository_owner }}/olah
        run: |
          if [[ "${{ github.event_name }}" == "workflow_run" ]]; then
            TAG_NAME="${{ github.event.workflow_run.head_branch }}"
            VERSION="${TAG_NAME#v}"
            OLAH_SOURCE="https://github.com/${{ github.repository }}/releases/download/${TAG_NAME}/olah-${VERSION}-py3-none-any.whl"
            PUSH_LATEST="true"
          else
            VERSION="${{ github.event.inputs.olah_version }}"
            OLAH_SOURCE="olah==${VERSION}"
            PUSH_LATEST="false"
          fi

          TAGS="${DOCKERHUB_IMAGE}:${VERSION}"$'\n'"${GHCR_IMAGE}:${VERSION}"
          if [[ "${PUSH_LATEST}" == "true" ]]; then
            TAGS="${TAGS}"$'\n'"${DOCKERHUB_IMAGE}:latest"$'\n'"${GHCR_IMAGE}:latest"
          fi

          echo "OLAH_SOURCE=${OLAH_SOURCE}" >> "$GITHUB_ENV"
          echo "OLAH_VERSION=${VERSION}" >> "$GITHUB_ENV"
          {
            echo "IMAGE_TAGS<<EOF"
            echo "${TAGS}"
            echo "EOF"
          } >> "$GITHUB_ENV"

      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build push image
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./docker/build@pypi/dockerfile
          build-args: |
            OLAH_SOURCE=${{ env.OLAH_SOURCE }}
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ env.IMAGE_TAGS }}

      - name: Print image digest
        run: echo "${{ steps.build.outputs.digest }}"

The same workflow, on Latchkey

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

name: Docker Image Build/Publish release image
 
on:
  workflow_run:
    workflows:
      - Build and publish release artifacts
    types:
      - completed
  workflow_dispatch:
    inputs:
      olah_version:
        description: Published Olah version already available on PyPI
        required: true
        default: 0.4.1
 
permissions:
  contents: read
  packages: write
 
concurrency:
  group: docker-release-${{ github.event.workflow_run.head_branch || github.event.inputs.olah_version }}
  cancel-in-progress: false
 
jobs:
  build-and-push-docker-image:
    timeout-minutes: 30
    name: Build release Docker image and push to registries
    if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
    runs-on: latchkey-small
 
    steps:
      - name: Determine package source and image tags
        env:
          DOCKERHUB_IMAGE: ${{ secrets.DOCKERHUB_USERNAME }}/olah
          GHCR_IMAGE: ghcr.io/${{ github.repository_owner }}/olah
        run: |
          if [[ "${{ github.event_name }}" == "workflow_run" ]]; then
            TAG_NAME="${{ github.event.workflow_run.head_branch }}"
            VERSION="${TAG_NAME#v}"
            OLAH_SOURCE="https://github.com/${{ github.repository }}/releases/download/${TAG_NAME}/olah-${VERSION}-py3-none-any.whl"
            PUSH_LATEST="true"
          else
            VERSION="${{ github.event.inputs.olah_version }}"
            OLAH_SOURCE="olah==${VERSION}"
            PUSH_LATEST="false"
          fi
 
          TAGS="${DOCKERHUB_IMAGE}:${VERSION}"$'\n'"${GHCR_IMAGE}:${VERSION}"
          if [[ "${PUSH_LATEST}" == "true" ]]; then
            TAGS="${TAGS}"$'\n'"${DOCKERHUB_IMAGE}:latest"$'\n'"${GHCR_IMAGE}:latest"
          fi
 
          echo "OLAH_SOURCE=${OLAH_SOURCE}" >> "$GITHUB_ENV"
          echo "OLAH_VERSION=${VERSION}" >> "$GITHUB_ENV"
          {
            echo "IMAGE_TAGS<<EOF"
            echo "${TAGS}"
            echo "EOF"
          } >> "$GITHUB_ENV"
 
      - name: Checkout code
        uses: actions/checkout@v4
 
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
 
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
 
      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
 
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
 
      - name: Build push image
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./docker/build@pypi/dockerfile
          build-args: |
            OLAH_SOURCE=${{ env.OLAH_SOURCE }}
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ env.IMAGE_TAGS }}
 
      - name: Print image digest
        run: echo "${{ steps.build.outputs.digest }}"
 

What changed

4 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:

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow