prometheus / prometheus

This documentation provides a detailed step-by-step guide on how to deploy CI/CD for the Prometheus project. As of now, CI/CD is not yet set up for the project. This section outlines some next steps you can take to implement a robust CI/CD pipeline.

Current Status

The CI/CD setup is currently missing. Below are recommendations to establish a structured CI/CD workflow for the Prometheus repository.

Next Steps for Setting Up CI/CD

  1. Version Control Integration:

    • Ensure your code is hosted in a version control system, such as Git. Setting up a repository on platforms like GitHub or GitLab is recommended.

  2. CI/CD Platform Selection:

    • Choose a CI/CD platform, such as GitHub Actions, GitLab CI/CD, CircleCI, or Jenkins. This guide will focus on an example using GitHub Actions.

  3. Define CI/CD Workflows:

    • Create workflows that manage the build, test, and deployment processes.

  4. Create a .github/workflows Directory:

    • In your repository, you can implement GitHub Actions by creating a .github/workflows directory.

  5. Implement Your CI/CD Pipeline:

    • Below is a sample CI/CD pipeline configuration that you could place in a file named ci-cd.yml within the .github/workflows directory.

Example CI/CD Pipeline using GitHub Actions

name: CI/CD

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Code
        uses: actions/checkout@v2

      - name: Set up Go
        uses: actions/setup-go@v2
        with:
          go-version: '1.17' # Specify the Go version

      - name: Build
        run: |
          go build -o prometheus ./cmd/prometheus

      - name: Run Tests
        run: |
          go test -tags '!windows,gofuzz' ./...

      - name: Build Docker Image
        run: |
          docker build -t prometheus:latest .

      - name: Push Docker Image to Docker Hub
        run: |
          echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
          docker tag prometheus:latest your_dockerhub_username/prometheus:latest
          docker push your_dockerhub_username/prometheus:latest

Explanation of the GitHub Actions Configuration

  • Triggers:

    • The workflow triggers on pushes and pull requests to the main branch.

  • Jobs:

    • build:
      • Runs on ubuntu-latest to ensure a clean environment.
      • Checkout Code: Uses an Action to check out the code from the repository.
      • Set up Go: Configures the Go environment.
      • Build: Compiles the Prometheus binary.
      • Run Tests: Executes tests while respecting defined build constraints.
      • Build Docker Image: This step builds the Docker image as specified in the Dockerfile.
      • Push Docker Image: The built Docker image is tagged and pushed to Docker Hub, utilizing secrets for credentials.

Conclusion

Implementing a CI/CD pipeline is crucial for automating the process of building, testing, and deploying your application. By following the steps outlined above, you can integrate automated processes into the Prometheus project, enhancing reliability and efficiency.

For further enhancement, consider additional steps for deploying applications such as Kubernetes integration and monitoring the CI/CD process.

Source: Prometheus/documentation, Dockerfile, Makefile.