action.yaml

name: Refresh Runner
description: Creates/Refreshes self hosted runner.

inputs:
  ## Required Parameters
  org-name:
    description: Target organization name. Either org-name or repo-name must be specified.
    default: ""
    required: false
  repo-name:
    description: |
      Target repository name. Repository name must include owner: `{owner}/{repo}`.
      Either org-name or repo-name must be specified.
    default: ""
    required: false
  github-access-token:
    description: Github access token to use. Token should be personal access token or Github Apps generated token.
    required: true
  
  ## Optional Parameters
  runner-version:
    description: |
      Version of Github Self Hosted Runner. 
      If not specified, it will use the version of the running runner. (NOTE: Architecture is fixed to "linux-x64")
    required: false
    default: ''
  runner-name:
    description: Name of the dummy runner to be created/refreshed.
    required: false
    default: managed-dummy-runner

runs:
  using: "composite"
  steps:
    - name: Run dummy runner
      shell: bash
      run: |
        # Exit on error
        set -eu

        if [ "${{ inputs.org-name }}" != "" ] &&  [ "${{ inputs.repo-name }}" != "" ]; then
            echo "Error: Can't specify both org-name and repo-name."
            exit 1
        fi
        if [ "${{ inputs.org-name }}" = "" ] && [ "${{ inputs.repo-name }}" = "" ]; then
            echo "Error: Required to specify either org-name or repo-name."
            exit 1
        fi

        # Prepare dummy runner files
        mkdir actions-runner && cd actions-runner
        if [ "${{ inputs.runner-version }}" = "" ]; then
            RUNNER_PATH=$(dirname $(dirname $RUNNER_TEMP))
            echo "### Copy runner files from the running runner:"
            echo "    - runner_path: $RUNNER_PATH"
            # We need to exclude temp/state related files when copying the existing runner files.
            rsync --copy-links -a ${RUNNER_PATH}/ . --exclude "_*" --exclude ".*"
        else
            DOWNLOAD_URL="https://github.com/actions/runner/releases/download/v${{ inputs.runner-version }}/actions-runner-linux-x64-${{ inputs.runner-version }}.tar.gz"
            echo "### Download runner files:"
            echo "    - download_url: $DOWNLOAD_URL"
            curl -s -O -L https://github.com/actions/runner/releases/download/v${{ inputs.runner-version }}/actions-runner-linux-x64-${{ inputs.runner-version }}.tar.gz
            tar xzf ./actions-runner-linux-x64-${{ inputs.runner-version }}.tar.gz
        fi
        echo "Prepared dummy runner version: $(./config.sh --version)"

        echo "### Configure dummy runner"
        if [ "${{ inputs.org-name }}" != "" ]; then
            echo "target org: ${{ inputs.org-name }}"
            RUNNER_TOKEN=$(bash ${{ github.action_path }}/script/get-org-runner-token.sh ${{ inputs.github-access-token }} ${GITHUB_API_URL} ${{ inputs.org-name }} )
            TARGET_NAME=${{ inputs.org-name }}
        else
            echo "target repository: ${{ inputs.repo-name }}"
            RUNNER_TOKEN=$(bash ${{ github.action_path }}/script/get-repo-runner-token.sh ${{ inputs.github-access-token }} ${GITHUB_API_URL} ${{ inputs.repo-name }} )
            TARGET_NAME=${{ inputs.repo-name }}
        fi

        ./config.sh \
            --name ${{ inputs.runner-name }} \
            --url ${GITHUB_SERVER_URL}/${TARGET_NAME} \
            --token ${RUNNER_TOKEN} \
            --labels dummy-runner \
            --replace \
            --unattended

        echo "### Run dummy runner"
        python -u ${{ github.action_path }}/script/run-dummy-runner.py