Github 1 : Complete CI/CD Workflow # Optional: Name of the workflow

name: Complete CI/CD Workflow  # Optional: Name of the workflow

on:  # Event triggers for workflow

  push:

    branches: [main, develop]  # Trigger on push to specific branches

    paths-ignore:

      - '**.md'  # Ignore pushes to markdown files

  pull_request:

    types: [opened, synchronize, reopened]

    branches: [main]

  schedule:

    - cron: '0 2 * * 1'  # Run every Monday at 2 AM

  workflow_dispatch:  # Manual trigger with optional inputs

    inputs:

      environment:

        description: 'Target environment'

        required: true

        default: 'staging'

env:  # Global environment variables for all jobs

  NODE_ENV: production

  CACHE_NAME: ci-cache

jobs:

  build:

    name: Build and Test Application

    

    runs-on: ubuntu-latest  # GitHub-hosted runner

    strategy:

      matrix:

        node-version: [14.x, 16.x]  # Run job for each version

        os: [ubuntu-latest, windows-latest]

      fail-fast: false  # Continue other matrix runs if one fails

    defaults:

      run:

        shell: bash  # Default shell for run steps

    steps:

      - name: Checkout repository

        uses: actions/checkout@v3

      - name: Set up Node.js

        uses: actions/setup-node@v4

        with:

          node-version: ${{ matrix.node-version }}

      - name: Restore NPM cache

        uses: actions/cache@v3

        with:

          path: ~/.npm

          key: ${{ runner.os }}-node-${{ matrix.node-version }}-${{ hashFiles('**/package-lock.json') }}

          restore-keys: |

            ${{ runner.os }}-node-${{ matrix.node-version }}-

      - name: Install dependencies

        run: npm ci

      - name: Run tests

        run: npm test

      - name: Upload test results

        uses: actions/upload-artifact@v3

        with:

          name: test-results

          path: test-results/

  lint:

    name: Run Linter

    runs-on: ubuntu-latest

    needs: build  # Wait until build is successful

    steps:

      - uses: actions/checkout@v3

      - name: Setup Node

        uses: actions/setup-node@v4

        with:

          node-version: 16

      - name: Install deps

        run: npm ci

      - name: Run ESLint

        run: npm run lint

  deploy:

    name: Deploy to ${{ github.event.inputs.environment || 'staging' }}

    runs-on: ubuntu-latest

    needs: lint

    if: github.ref == 'refs/heads/main' && github.event_name == 'workflow_dispatch'

    environment:

      name: ${{ github.event.inputs.environment || 'staging' }}

      url: https://example.com/${{ github.event.inputs.environment }}

    steps:

      - uses: actions/checkout@v3

      - name: Deploy with rsync (or use AWS CLI / Helm / Terraform etc.)

        run: |

          echo "Deploying to ${{ github.event.inputs.environment }}..."

          # Add actual deployment script here

      - name: Notify Slack

        if: success()

        uses: slackapi/slack-github-action@v1.24.0

        with:

          payload: |

            {

              "text": "Deployment to ${{ github.event.inputs.environment }} was successful!"

            }

        env:

          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}

  cleanup:

    name: Clean up resources

    runs-on: ubuntu-latest

    if: always()  # Run regardless of job success/failure

    needs: [build, lint, deploy]

    steps:

      - run: echo "Cleaning up temporary files"

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Use Case	Explanation
Build and Test	Compile and run unit tests on push
Linting & Formatting	Run ESLint or Prettier checks
Container Deployment	Build Docker image and push to ECR/DockerHub
Serverless Deployment	Deploy to AWS Lambda or Azure Functions
Infrastructure as Code	Run Terraform plan/apply on PRs
Notification	Send Slack/email on job failure or success
Version Bumping	Auto-increment version and create GitHub release
Scheduled Jobs	Daily security scanning or backups using CRON