Creating a Dockerfile

1 hour
  • 2 Learning Objectives

About this Hands-on Lab

In this hands-on lab, you are part of a development team that is working on a next-gen product for XYZ Company. The team needs you to Dockerize the application. To do this, you need to create a Dockerfile that will copy the code to `/var/node` where the application will live.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Clone the Application from GitHub

Clone the repo:

git clone https://github.com/linuxacademy/content-express-demo-app.git
Build the Docker Image

Create a Dockerfile:

vi Dockerfile

Dockerfile:

FROM node

RUN mkdir -p /var/node
ADD content-express-demo-app/ /var/node
WORKDIR /var/node
RUN npm install

CMD bin/www

Build the image:

docker build -t la/app-ndoe -f Dockerfile .

Additional Resources

Make sure to complete all your work on the lab server.

  1. Create a Dockerfile and configure it as follows:
    • Use Node as the base image.
    • Include the application code from content-express-demo-app, and make sure it is added to /var/node.
    • Set /var/node as the working directory.
    • Execute npm install.
    • Make sure that the start command is set to /bin/www.
  2. Build the Docker image and make sure to tag it with la/app-node.

Notes:

  • Use sudo for root access privileges.
  • All work should be done in the root directory.
  • GitHub repository URL.

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