# CI workflow (prometheus/pushgateway)

> The CI workflow from prometheus/pushgateway, explained and optimized by Latchkey.

Source: https://latchkey.dev/workflows/prometheus-pushgateway-ci  
Upstream: [prometheus/pushgateway](https://github.com/prometheus/pushgateway/blob/master/.github/workflows/ci.yml) (.github/workflows/ci.yml), licence Apache-2.0

## What it does

This is the CI workflow from the prometheus/pushgateway repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

## The workflow

```yaml
---
name: CI
on:
  pull_request:
  push:
    branches: [master, 'release-*']
    tags: ['v*']

permissions:
  contents: read

jobs:
  test_go:
    name: Go tests
    runs-on: ubuntu-latest
    container:
      # Whenever the Go version is updated here, .promu.yml
      # should also be updated.
      image: quay.io/prometheus/golang-builder:1.26-base
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false
      - uses: prometheus/promci-setup@5af30ba8c199a91d6c04ebdc3c48e630e355f62d # v0.1.0
      - run: make

  build:
    name: Build Prometheus for common architectures
    runs-on: ubuntu-latest
    if: |
      !(github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v'))
      &&
      !(github.event_name == 'pull_request' && startsWith(github.event.pull_request.base.ref, 'release-'))
      &&
      !(github.event_name == 'push' && github.event.ref == 'refs/heads/main')
      &&
      !(github.event_name == 'push' && github.event.ref == 'refs/heads/master')
    strategy:
      matrix:
        thread: [ 0, 1, 2 ]
    steps:
      - uses: prometheus/promci/build@d9d4f5688814f0b77bf003d07fb8c00507390634 # v0.8.2
        with:
          promu_opts: "-p linux/amd64 -p windows/amd64 -p linux/arm64 -p darwin/amd64 -p darwin/arm64 -p linux/386"
          parallelism: 3
          thread: ${{ matrix.thread }}

  build_all:
    name: Build Prometheus for all architectures
    runs-on: ubuntu-latest
    if: |
      (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v'))
      ||
      (github.event_name == 'pull_request' && startsWith(github.event.pull_request.base.ref, 'release-'))
      ||
      (github.event_name == 'push' && github.event.ref == 'refs/heads/main')
      ||
      (github.event_name == 'push' && github.event.ref == 'refs/heads/master')
    strategy:
      matrix:
        thread: [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ]

    steps:
      - uses: prometheus/promci/build@d9d4f5688814f0b77bf003d07fb8c00507390634 # v0.8.2
        with:
          parallelism: 12
          thread: ${{ matrix.thread }}

  publish_master:
    # https://github.com/prometheus/promci/blob/52c7012f5f0070d7281b8db4a119e21341d43c91/actions/publish_main/action.yml
    name: Publish master branch artifacts
    runs-on: ubuntu-latest
    permissions:
      packages: write
    needs: [test_go, build_all]
    if: |
      (github.event_name == 'push' && github.event.ref == 'refs/heads/main')
      ||
      (github.event_name == 'push' && github.event.ref == 'refs/heads/master')
    steps:
      - uses: prometheus/promci/publish_main@d9d4f5688814f0b77bf003d07fb8c00507390634 # v0.8.2
        with:
          docker_hub_login: ${{ secrets.docker_hub_login }}
          docker_hub_password: ${{ secrets.docker_hub_password }}
          ghcr_io_password: ${{ github.token }}
          quay_io_login: ${{ secrets.quay_io_login }}
          quay_io_password: ${{ secrets.quay_io_password }}

  publish_release:
    name: Publish release artefacts
    runs-on: ubuntu-latest
    permissions:
      contents: write
      packages: write
    needs: [test_go, build_all]
    if: |
      (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v'))
    steps:
      - uses: prometheus/promci/publish_release@d9d4f5688814f0b77bf003d07fb8c00507390634 # v0.8.2
        with:
          docker_hub_login: ${{ secrets.docker_hub_login }}
          docker_hub_password: ${{ secrets.docker_hub_password }}
          ghcr_io_password: ${{ github.token }}
          quay_io_login: ${{ secrets.quay_io_login }}
          quay_io_password: ${{ secrets.quay_io_password }}
          github_token: ${{ github.token }}
```

## FAQ

### What does the CI workflow (prometheus/pushgateway) workflow do?

This is the CI workflow from the prometheus/pushgateway repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

### What CI health grade does this workflow get?

This Automation and other workflow grades C. Paste your own workflow into the Latchkey grader to see its grade and the exact fixes.

### How can I improve this Automation and other workflow?

Add run de-duplication and job timeouts. Latchkey applies these automatically on managed runners when you point runs-on at Latchkey.

---

Latchkey runs CI/CD that repairs its own failures. Agent entry points: https://latchkey.dev/agent.txt, https://latchkey.dev/openapi.json, https://latchkey.dev/llms.txt