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Promtool GitHub Actions

Promtool GitHub Actions allow you to check Prometheus configs and Alert rules within GitHub Actions.

The output of the actions can be viewed from the Actions tab in the main repository view. If the actions are executed on a pull request event, a comment may be posted on the pull request.

Success Criteria

An exit code of 0 is considered a successful execution.

Usage

Promtool GitHub Actions are a single GitHub Action that executes different promtool subcommands depending on the content of the GitHub Actions YAML file. Right now only rules and config is supported which runs promtool check rules and promtool check config for the given files. Additionally, alertmanager could be used to check the alertmanager config. It uses amtool command instead.

name: Check Prometheus Alert rules

on:
  pull_request:
    paths:
    - 'prometheus/config/*.yml'
    - 'prometheus/alert_rules/*.yml'

jobs:
  on-pull-request:
    name: On Pull Request
    runs-on: ubuntu-latest
    steps:
    - name: Checkout Repo
      uses: actions/checkout@master

    - name: Check Prometheus alert rules
      uses: peimanja/promtool-github-actions@master
      with:
        promtool_actions_subcommand: 'rules'
        promtool_actions_files: 'prometheus/alert_rules/*.yml'
        promtool_actions_flags: '--lint-fatal'
        promtool_actions_version: '2.14.0'
        promtool_actions_comment: true
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    - name: Check Prometheus configs
      uses: peimanja/promtool-github-actions@master
      with:
        promtool_actions_subcommand: 'config'
        promtool_actions_files: 'prometheus/config/*.yml'
        promtool_actions_version: '2.14.0'
        promtool_actions_comment: true
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Inputs

Inputs configure Terraform GitHub Actions to perform different actions.

  • promtool_actions_subcommand - (Required) The Promtool subcommand to execute. Valid values are rules, config and alertmanager.
  • promtool_actions_files - (Required) Path to files. Can be something like configs/*.yml or alert_rules/*.yml.
  • promtool_actions_flags - (Optional) The Promtool flags.
  • promtool_actions_version - (Optional) The Promtool version to install and execute (Prometheus bundle version). The default is set to latest and the latest stable version will be pulled down automatically.
  • amtool_actions_version - (Optional) The Amtool version to install and execute (Prometheus Alertmanager bundle version). The default is set to latest and the latest stable version will be pulled down automatically.
  • promtool_actions_comment - (Optional) Whether or not to comment on GitHub pull requests. Defaults to true.

Secrets

Secrets are similar to inputs except that they are encrypted and only used by GitHub Actions. It's a convenient way to keep sensitive data out of the GitHub Actions workflow YAML file.

  • GITHUB_TOKEN - (Optional) The GitHub API token used to post comments to pull requests. Not required if the promtool_actions_comment input is set to false.