docker.yml

name: Build 0KN Node Docker Image

on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - main
    paths-ignore:
      - '**/*.md'
      - 'docs/**'
      - 'tests/**'
    tags:
      - "v*"

permissions:
  contents: read
  packages: write

jobs:
  build-push-docker-image:
    runs-on: ubuntu-latest

    env:
      IMAGE: ghcr.io/${{ github.repository_owner }}/node
      IMAGE_TEST: zkn/node

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

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ${{ env.IMAGE }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=latest,enable={{is_default_branch}}
            type=sha

      # https://docs.docker.com/build/ci/github-actions/reproducible-builds/
      - name: Set source build date from git commit timestamp
        run: echo "SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct)" >> $GITHUB_ENV

      - name: Build and export to Docker
        uses: docker/build-push-action@v6
        env:
          DOCKER_BUILD_SUMMARY: false
        with:
          file: ./docker/node/Dockerfile
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: ${{ env.IMAGE_TEST }}:test
          load: true

      - name: Test docker image
        run: docker run --rm ${{ env.IMAGE_TEST }}:test /bin/bash -c 'ls -l /opt/zkn/'

      - name: Docker build and push
        uses: docker/build-push-action@v6
        with:
          file: ./docker/node/Dockerfile
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64
          push: ${{ github.event_name != 'pull_request' }}

      - name: List docker images
        run: docker images