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Dockerizing a simple Nodejs app
  • Difficulty Level : Medium
  • Last Updated : 28 Mar, 2019

The goal of this article is to show how to get a Node.js application into a Docker container.

  • First of all we will create a sample node app and then,
  • Build a Docker image of that application and run it

    Setting up Node app
    Create a directory and run the command npm init to initialize the app and install initial dependencies


    Create a file app.js and write this code inside it.


    The next step is to add Docker to it. So, create an empty file named Dockerfile and put this code inside it


    Now add .dockerignore file to prevent your local modules and logs to be copied onto your Docker image and add this two files

    Now we need to build our Docker image and run it. This can be done by the following command :

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