CI/CD and Deployment Pipelines

Continuous Integration and Deployment automate testing and deployment, reducing errors and speeding up releases.

GitLab CI/CD

.gitlab-ci.yml

stages:
  - build
  - test
  - deploy

build:
  stage: build
  script:
    - docker build -t myapp:$CI_COMMIT_SHA .
    - docker tag myapp:$CI_COMMIT_SHA myapp:latest

test:
  stage: test
  script:
    - docker run myapp:latest npm test

deploy:
  stage: deploy
  script:
    - docker-compose up -d
  only:
    - main

GitHub Actions

name: Deploy

on:
  push:
    branches: [main]

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Deploy
        run: |
          docker build -t myapp .
          docker-compose up -d

Jenkins

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                sh 'docker build -t myapp .'
            }
        }
        stage('Test') {
            steps {
                sh 'docker run myapp npm test'
            }
        }
        stage('Deploy') {
            steps {
                sh 'docker-compose up -d'
            }
        }
    }
}