validate-prometheus-alerts.yaml

# SPDX-FileCopyrightText: 2026 SAP SE or an SAP affiliate company and cobaltcore-dev contributors
# SPDX-License-Identifier: Apache-2.0

name: Validate Prometheus Alerts

on:
  workflow_dispatch:
  pull_request:
    paths:
      - 'charts/openstack-hypervisor-operator/alerts/*.yaml'
      - 'charts/openstack-hypervisor-operator/alerts/*.yml'

permissions:
  contents: read

env:
  PROMTOOL_VERSION: 3.8.0

defaults:
  run:
    shell: bash

concurrency:
  group: validate-prometheus-alerts-${{ github.ref }}
  cancel-in-progress: true

jobs:
  validate-alerts:
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v6

      - name: Install promtool
        run: |
          set -euo pipefail
          curl -sSfL "https://github.com/prometheus/prometheus/releases/download/v${PROMTOOL_VERSION}/prometheus-${PROMTOOL_VERSION}.linux-amd64.tar.gz" \
            | tar xz --strip-components=1 "prometheus-${PROMTOOL_VERSION}.linux-amd64/promtool"
          sudo install -m 0755 promtool /usr/local/bin/promtool
          promtool --version

      - name: Validate Prometheus alert rules
        run: |
          set -euo pipefail
          shopt -s nullglob
          files=(charts/openstack-hypervisor-operator/alerts/*.{yaml,yml})
          if [ ${#files[@]} -eq 0 ]; then
            echo "No Prometheus rule files found."
            exit 1
          fi
          promtool check rules "${files[@]}"