name: BuildKit Build and push - dev
description: "Build and push images using remote Buildkit"
inputs:
  registry_addr:
    description: registry address
    required: true
  registry_username:
    description: "registry username"
    required: true
  registry_password:
    description: "registry password"
    required: true
  buildkit_addr:
    description: "buildkit address"
    required: true
  tags:
    description: "image tags / buildctl image name"
    required: true
  context:
    description: "buildctl build context"
    required: false
    default: "."
  dockerfile:
    description: "buildctl build dockerfile/folder"
    required: true
    default: "."
  filename:
    description: "Docker file name (Default: Dockerfile)"
    required: true
    default: "Dockerfile"
  build_args:
    description: "Build arguments (multiline KEY=VALUE)"
    required: false
    default: ""
runs:
  using: "composite"
  steps:
    - name: run buildctl build and push
      shell: bash
      run: |
        ###############################################
        # Create DOCKER_CONFIG for this pipeline
        ###############################################

        DOCKER_CONFIG_DIR="${RUNNER_TEMP}/.buildctl_docker"
        mkdir -p "$DOCKER_CONFIG_DIR"

        trap 'rm -rf "$DOCKER_CONFIG_DIR"' EXIT

        AUTH=$(printf "%s:%s" "${{ inputs.registry_username }}" "${{ inputs.registry_password }}" | base64 -w0)

        cat > "$DOCKER_CONFIG_DIR/config.json" <<EOF
        {
          "auths": {
            "${{ inputs.registry_addr }}": {
              "auth": "$AUTH"
            }
          }
        }
        EOF

        ###############################################
        # Build args
        ###############################################

        BUILD_ARG_FLAGS=""
        while IFS= read -r line; do
          [[ -z "$line" ]] && continue
          BUILD_ARG_FLAGS="$BUILD_ARG_FLAGS --opt build-arg:${line}"
        done <<< "${{ inputs.build_args }}"

        echo "Using build args: $BUILD_ARG_FLAGS"

        ###############################################
        # Build + push using BuildKit REMOTE + SECRET
        ###############################################

        buildctl \
          --addr tcp://${{ inputs.buildkit_addr }} \
          build \
          --frontend=dockerfile.v0 \
          --local context=${{ inputs.context }} \
          --local dockerfile=${{ inputs.dockerfile }} \
          --opt filename=${{ inputs.filename }} \
          $BUILD_ARG_FLAGS \
          --secret id=harbor,src=$DOCKER_CONFIG_DIR/config.json \
          --output type=image,name=${{ inputs.tags }},push=true