name: Promtool check

on: [pull_request, push]

jobs:
  promtool-check:
    name: Check alert rules syntax
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v3

      - name: Set up Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: 2.7

      - name: Set up yq
        uses: mikefarah/yq@master

      - name: Install liquid
        run: gem install liquid-cli

      - name: Build rule configuration
        run: |
          gem install liquid-cli
          cat _data/rules.yml | yq -I 0 -o json > _data/rules.json
          cat test/template.yml | liquid "$(< _data/rules.json)" > test/rules.yml

      - name: Check Prometheus alert rules
        uses: peimanja/promtool-github-actions@master
        with:
          promtool_actions_subcommand: 'rules'
          promtool_actions_files: 'test/rules.yml'
          promtool_actions_comment: true
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}