name: BuildKit Build and push
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: |
        cat > /tmp/registry-config.json <<EOF
        {
          "auths": {
            "oci.limbosolutions.com": {
              "auth": "$(printf '%s:%s' "${{ inputs.registry_username }}" "${{ inputs.registry_password }}" | base64 -w0)"
            }
          }
        }
        EOF

        # Build build-arg flags
        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 com credenciais por build
        buildctl \
          --addr ${{ inputs.buildkit_addr }} \
          build \
          --registry-config /tmp/registry-config.json \
          --frontend=dockerfile.v0 \
          --local context=${{ inputs.context }} \
          --local dockerfile=${{ inputs.dockerfile }} \
          --opt filename=${{ inputs.filename }} \
          $BUILD_ARG_FLAGS \
          --output type=image,name=${{ inputs.tags }},push=true