Project 2: Deploying a node application Using Docker

Step 1: Launch an EC2 Instance

With the help of this: https://lalitakashyapblog.hashnode.dev/step-by-step-guide-to-setting-up-an-ec2-instance

Step 2: Install docker

With the help of this: https://lalitakashyapblog.hashnode.dev/from-zero-to-docker-a-beginners-introduction-to-containers

Step 3: Create directory and move into it

mkdir projects
cd projects/

Step 4: Create project name directory and move into it

mkdir node-app
cd node-app/

Step 5: Clone repository url

git clone https://github.com/Lalita5Kashyap/node-todo-cicd.git

Step 6: Move into project folder

cd node-todo-cicd/

Delete Dockerfile if have.

Step 7: Create dockerfile

#Get a base image with nodejs
FROM node:14

#Create a working directory to run a node app
WORKDIR /app

#Copy code from local machine to docker container
COPY . .

#Install npm
RUN npm install

#All my test cxases are passing
RUN npm run test

#Expose port
EXPOSE 8000

#Run the node app
CMD ["node", "app.js"]

Step 8: Build image

docker build -t node-app:latest .

Step 9: Check image created or not

docker images

Step 10: Create and run docker container

docker run -d node-app:latest

Step 11: Check container created or not

docker ps

Step 12: Map container port to system port

docker run -d -p 8000:8000 node-app:latest

Step 13: Give permission to port "8000" in instance

• Go to security group in instance

  

• Click SG link

  

• Click on "edit inbound rules"

  

• Click on "Add rules"

  

• Give "8000" in port range and select "Anywhere" in source and click Save

  

• Copy public dns from instance in networking

  

• Now go to browser and paste public ip of instance

  

  We hope this guide has provided you with a solid foundation to start deploying Node applications with Docker. Happy coding!

  Thank you ^🙏

  Keep Learning..