action.yml

name: "Build and Push Docker Image"
description: "Reusable action for building and pushing Docker images"
inputs:
  dockerhub-username:
    description: "The Dockerhub username"
    required: true
  dockerhub-token:
    description: "The Dockerhub Token"
    required: true

  private-registry-push:
    description: "Flag to push to private registry"
    required: false
    default: "false"
  private-registry-username:
    description: "The private registry username"
    default: ""
    required: false
  private-registry-token:
    description: "The private registry token"
    default: ""
    required: false
  private-registry-addr:
    description: "The private registry addresss"
    required: false
    default: "registry.plane.tools"
  private-registry-project:
    description: "The private registry project"
    default: "plane"
    required: false

  # Docker Image Options
  docker-image-owner:
    description: "The owner of the Docker image"
    required: true
  docker-image-name:
    description: "The name of the Docker image"
    required: true
  build-context:
    description: "The build context"
    required: true
    default: "."
  dockerfile-path:
    description: "The path to the Dockerfile"
    required: true
  build-args:
    description: "The build arguments"
    required: false
    default: ""
  
  # Buildx Options
  buildx-driver:
    description: "Buildx driver"
    required: true
    default: "docker-container"
  buildx-version:
    description: "Buildx version"
    required: true
    default: "latest"
  buildx-platforms:
    description: "Buildx platforms"
    required: true
    default: "linux/amd64"
  buildx-endpoint:
    description: "Buildx endpoint"
    required: true
    default: "default"

  # Release Build Options
  build-release:
    description: "Flag to publish release"
    required: false
    default: "false"
  build-prerelease:
    description: "Flag to publish prerelease"
    required: false
    default: "false"
  release-version:
    description: "The release version"
    required: false
    default: "latest"

runs:
  using: "composite"
  steps:
    - name: Set Docker Tag
      shell: bash
      env:
        IMG_OWNER: ${{ inputs.docker-image-owner }}
        IMG_NAME: ${{ inputs.docker-image-name }}
        PRIVATE_REGISTRY_PUSH: ${{ inputs.private-registry-push }}
        PRIVATE_REGISTRY_ADDR: ${{ inputs.private-registry-addr }}
        PRIVATE_REGISTRY_PROJECT: ${{ inputs.private-registry-project }}
        BUILD_RELEASE: ${{ inputs.build-release }}
        IS_PRERELEASE: ${{ inputs.build-prerelease }}
        REL_VERSION: ${{ inputs.release-version }}
      run: |
        FLAT_BRANCH_VERSION=$(echo "${{ github.ref_name }}" | sed 's/[^a-zA-Z0-9.-]//g')

        if [ "${{ env.BUILD_RELEASE }}" == "true" ]; then
          semver_regex="^v([0-9]+)\.([0-9]+)\.([0-9]+)(-[a-zA-Z0-9]+(-[a-zA-Z0-9]+)*)?$"
          if [[ ! ${{ env.REL_VERSION }} =~ $semver_regex ]]; then
            echo "Invalid Release Version Format : ${{ env.REL_VERSION }}"
            echo "Please provide a valid SemVer version"
            echo "e.g. v1.2.3 or v1.2.3-alpha-1"
            echo "Exiting the build process"
            exit 1  # Exit with status 1 to fail the step
          fi

          TAG=${{ env.IMG_OWNER }}/${{ env.IMG_NAME }}:${{ env.REL_VERSION }}

          if [ "${{ env.PRIVATE_REGISTRY_PUSH }}" == "true" ]; then
            TAG=${TAG},${{ env.PRIVATE_REGISTRY_ADDR }}/${{ env.PRIVATE_REGISTRY_PROJECT }}/${{ env.IMG_NAME }}:${{ env.REL_VERSION }}
          fi

          if [ "${{ env.IS_PRERELEASE }}" != "true" ]; then
            TAG=${TAG},${{ env.IMG_OWNER }}/${{ env.IMG_NAME }}:stable
            if [ "${{ env.PRIVATE_REGISTRY_PUSH }}" == "true" ]; then
              TAG=${TAG},${{ env.PRIVATE_REGISTRY_ADDR }}/${{ env.PRIVATE_REGISTRY_PROJECT }}/${{ env.IMG_NAME }}:stable
            fi
          fi
        elif [ "${{ env.TARGET_BRANCH }}" == "master" ]; then
          TAG=${{ env.IMG_OWNER }}/${{ env.IMG_NAME }}:latest
          if [ "${{ env.PRIVATE_REGISTRY_PUSH }}" == "true" ]; then
            TAG=${TAG},${{ env.PRIVATE_REGISTRY_ADDR }}/${{ env.PRIVATE_REGISTRY_PROJECT }}/${{ env.IMG_NAME }}:latest
          fi
        else
          TAG=${{ env.IMG_OWNER }}/${{ env.IMG_NAME }}:${FLAT_BRANCH_VERSION}
          if [ "${{ env.PRIVATE_REGISTRY_PUSH }}" == "true" ]; then
            TAG=${TAG},${{ env.PRIVATE_REGISTRY_ADDR }}/${{ env.PRIVATE_REGISTRY_PROJECT }}/${{ env.IMG_NAME }}:${FLAT_BRANCH_VERSION}
          fi
        fi
        
        echo "DOCKER_TAGS=${TAG}" >> $GITHUB_ENV
        
    - name: Login to Docker Hub
      uses: docker/login-action@v3
      with:
        username: ${{ inputs.dockerhub-username }}
        password: ${{ inputs.dockerhub-token}}

    - name: Login to Private Registry
      if: ${{ inputs.private-registry-push == 'true' }}
      uses: docker/login-action@v3
      with:
        username: ${{ inputs.private-registry-username }}
        password: ${{ inputs.private-registry-token }}
        registry: ${{ inputs.private-registry-addr }}

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
      with:
        driver: ${{ inputs.buildx-driver }}
        version: ${{ inputs.buildx-version }}
        endpoint: ${{ inputs.buildx-endpoint }}

    - name: Check out the repo
      uses: actions/checkout@v4

    - name: Build and Push Docker Image
      uses: docker/build-push-action@v5.1.0
      with:
        context: ${{ inputs.build-context }}
        file: ${{ inputs.dockerfile-path }}
        platforms: ${{ inputs.buildx-platforms }}
        tags: ${{ env.DOCKER_TAGS }}
        push: true
        build-args: ${{ inputs.build-args }}
      env:
        DOCKER_BUILDKIT: 1
        DOCKER_USERNAME: ${{ inputs.dockerhub-username }}
        DOCKER_PASSWORD: ${{ inputs.dockerhub-token }}