container.yaml

name: Create and publish a Docker image to ghcr on main and nightly with ko

on:
  push:
    paths:
      - "**.go"
      - "**.yaml"
  pull_request:
    paths:
      - "**.go"
      - "**.yaml"
env:
  PLATFORMS: linux/amd64,linux/arm64,linux/ppc64le

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    concurrency:
      group: ${{ github.workflow }}-${{ github.ref }}
      cancel-in-progress: true

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: "go.mod"

      - uses: ko-build/setup-ko@v0.8

      - name: Build and push images
        shell: bash
        run: |
          set -x
          releaseBranchFormat='release-v'
          if [[ ${{ github.ref_name }} == ${releaseBranchFormat}* ]]; then
            tag="${${{ github.ref_name }}#*-}" 
          elif [[ ${{ github.ref }} == refs/pull/* ]]; then
            tag=pr-$(echo ${{ github.ref }} | cut -c11-|sed 's,/merge,,')
          else
            tag=$(echo ${{ github.ref_name }}|sed 's,/merge,,')
          fi


          for image in ./cmd/*;do
            ko build -B -t "${tag}" --platform="${{ env.PLATFORMS }}" "${image}"
          done