Project using a Docker File

1. Pull the repository using the Url mentioned below

   https://github.com/LondheShubham153/node-todo-cicd.git

   

2. At first, we will figure out what type of files the repository contains.

   We can see files with extension .js here, which means we will be have to create a container that can run a javascript file .

   

3. Now create a file with the name Dockerfile, and open it using a text editor.

   

   • FROM node : It is creating a base image of node

   • WORKDIR app : It is setting the working directory as app.

   • COPY . /app : It means that copy everything from this directory to the container working directory (/app)

   • RUN npm : Run command is executed during the image formation step.So here we are installing npm , which is a Node Package Manager.

   • RUN npm run test : This runs a predefined command specified in the "test" property of a package's "scripts" object.

   • CMD ["node","app.js"] : When docker run will be executed it will execute this command and app.js will start running inside our container.

   • EXPOSE 8000: here we are exposing port 8000 of the container

4. Once you have written the Dockerfile, run docker build . -t <image_name> , it will create an image from our Dockerfile.

5. Run docker run -p 8000:8000 <image_name>, the run command will create a container, -p 8000:8000 means we are mapping our system port number 8000 with the container port 8000.

   Now go inside your Google Chrome tab with local_host IP:8000

• Note if the web page is not loading go to the inbound group of your ec2 instance and add port 8000.

Thank you for reading!!

~Sujata Kumari