action.yml

---
name: "Container Structure Test Composite Action"
description: "A composite action to verify a container structure using GoogleContainerTools/container-structure-test."
branding:
  icon: 'check'
  color: 'blue'
inputs:
  image:
    description: |
      The full docker image tag to be verified.
    required: true
  config_files:
    description: |
      The path to the container structure configuration file.
    required: true
  version:
    description: |
      The version of container-structure-test to be installed.
      Default to 'latest' if not provided.
      See the key property in https://storage.googleapis.com/container-structure-test for available versions.
    required: false
    default: "latest"
  install_path:
    description: |
      The path to where the executable will be installed to.
    required: false
    default: ".bin"
  no_color:
    description: |
      No color in the output.
    required: false
    default: "true"
  pull_image:
    description: |
      Whether the image should be pulled instead.
    required: false
    default: "false"
  output_format:
    description: |
      The output format for the test report.
      Available format: text, json, junit
      Default: text
    default: "text"
  report_file:
    description: |
      Write the test report to the specified file. Supported file types are json and junit.
    default: ""
runs:
  using: "composite"
  steps:
    - uses: actions/cache@v4
      id: cache
      with:
        path: ${{ inputs.install_path }}
        key: ${{ runner.os }}-container-structure-test
        restore-keys: |
          ${{ runner.os }}-container-structure-test

    - run: |
        if [[ "${{ steps.cache.outputs.cache-hit }}" == 'true' ]]; then
          echo "container-structure-test found in cache. It will not be installed for this run."
        else
          echo "container-structure-test not found in cache. ${{ inputs.version }} version will be installed."

          case "$RUNNER_OS" in
            Linux)
              curl --location \
                --output container-structure-test \
                "https://storage.googleapis.com/container-structure-test/${{ inputs.version }}/container-structure-test-linux-amd64"
              ;;

            macOS)
              curl --location \
                --output container-structure-test \
                "https://storage.googleapis.com/container-structure-test/${{ inputs.version }}/container-structure-test-darwin-amd64"
              ;;

            *)
              echo "$RUNNER_OS is not supported! Use a linux or macOs one instead."
              exit 1
              ;;
          esac

          mkdir -vp "./${{ inputs.install_path }}"
          chmod +x container-structure-test
          mv -v container-structure-test "./${{ inputs.install_path }}/container-structure-test"
        fi

        echo "./${{ inputs.install_path }}" >> "$GITHUB_PATH"

      shell: bash

    - run: |
        NO_COLOR=""
        [[ "${{ inputs.no_color }}" == 'true' ]] && NO_COLOR="--no-color"

        PULL_IMAGE=""
        [[ "${{ inputs.pull_image }}" == 'true' ]] && PULL_IMAGE="--pull"

        OUTPUT_FORMAT="--output ${{ inputs.output_format }}"

        REPORT_FILE=""
        [[ -n "${{ inputs.report_file }}" ]] && REPORT_FILE="--test-report ${{ inputs.report_file }}"

        container-structure-test test $NO_COLOR $PULL_IMAGE $OUTPUT_FORMAT $REPORT_FILE \
          --image "${{ inputs.image }}" \
          --config "${{ inputs.config_files }}"

      shell: bash