How deeply do you understand the principles of CI/CD?

CI/CD (Continuous Integration / Continuous Delivery) is a practice of automating the building, testing, and deployment of software.

Deep understanding includes:

• Continuous Integration (CI): automatic integration of changes into a shared repository, with build and test runs to detect errors early.
• Continuous Delivery (CD): automation of releasing new software versions to staging or production, with the ability to quickly rollback.
• Knowledge of tools (Jenkins, GitLab CI, GitHub Actions, Drone, etc.) and the ability to configure pipelines for a project.
• Practice of writing reliable tests and monitoring builds.
• Understanding of Infrastructure as Code (IaC), containerization (Docker), and orchestration (Kubernetes) principles for deployment automation.

Example of a simple pipeline on GitHub Actions for a Go project:

name: Go CI
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up Go
      uses: actions/setup-go@v2
      with:
        go-version: 1.18
    - name: Build
      run: go build ./...
    - name: Test
      run: go test ./...

This pipeline automatically builds and tests the code on each push.