siddarth-ba-72/Nodejs-CICD-Docker

CI/CD of Nodejs Using GitHub Actions, EC2 and Docker containers

Development

• Develop the Application
• Push on GitHub

Dockerization

• Create a Dockerfile in your project's root folder
• Copy the below content

FROM node:16.20.1
WORKDIR /app
COPY package.json ./
RUN npm install
COPY . .
EXPOSE 5000
CMD ["npm","run","start"]

• Create a repository on Docker Hub
• In your project terminal

docker build -t <image_name> .

docker tag <image_name>:latest <repository_name>

docker push <repository_name>

• This will push your remote image on Docker Hub

EC2 Instance

• Create an AWS EC2 instance
• Add an actions runner in GitHub to connect to aws-ec2 instance
• Go to Settings -> Actions Tab -> Runner -> New self-hosted runner -> Select Linux
• In Your EC2 dashboard go to the instance -> Click on Instance id -> Connect -> Connect
• After connecting you can access the ec2 linux terminal
• Follow the instructions given below:-

mkdir actions-runner && cd actions-runner

curl -o actions-runner-linux-x64-2.311.0.tar.gz -L https://github.com/actions/runner/releases/download/v2.311.0/actions-runner-linux-x64-2.311.0.tar.gz

• Install libicu and .NET Core 6.O dependencies on ec2 terminal. Remember the Amazon-Linux has the Fedora dsitribution

sudo dnf install libicu

sudo rpm -Uvh https://packages.microsoft.com/config/rhel/8/packages-microsoft-prod.rpm

• We also need to install docker

sudo yum update -y
sudo yum -y install docker

• Start Docker

sudo service docker start

• Now we need to provide access to docker by going to root user. You can create the duplicate of this browser tab and run these

sudo su
chmod 666 /var/run/docker.sock

• Back to ec2 instance Extract the installer

tar xzf ./actions-runner-linux-x64-2.311.0.tar.gz

• Create Runner and Start

./config.sh --url https://github.com/Budget-Sales-Analysis/Budget_Sales_Analysis_Ineuron --token AUEFA43YF3GF2PHNHKMJ5OLFSQGJ6

• Give the name as aws-ec2

./run.sh

CI/CD Pipeline

• Go tp your project root directory and create .github/workflows/cicd_workflow.yml file
• Go to Settings -> Security tab -> Secrets and Variables -> Actions -> New repository secret
• Create two new secret variables
  • DOCKER_USERNAME: Your Docker Hub username
  • DOCKER_PASSWORD: Your Docker Hub Personal Access Token
• Copy the below content to this file

name: CICD

on:
  push:
    branches: [master]

jobs:
  build:
    runs-on: [ubuntu-latest]
    steps:
      - name: Checkout source
        uses: actions/checkout@v3
      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      - name: Build docker image
        run: docker build -t <repository_name> .
      - name: Publish image to docker hub
        run: docker push <repository_name>

  deploy:
    needs: build
    runs-on: [aws-ec2]
    steps:
      - name: Pull image from docker hub
        run: docker pull <repository_name>
      - name: Delete old container
        run: docker rm -f nodejs-app-container
      - name: Run docker container
        run: docker run -d -p 5000:5000 --name nodejs-app-container <repository_name>

• Push the code to GitHub