A Simple Hello World Node Demo

Example used to demonstrate docker init CLI for a simple Hello World Node Program

Run the application

You can simply use node app.js command.

This script creates a simple HTTP server that listens on port 8080 and returns a response with the message "Hello from Docker!" when accessed. You can save this script as app.js in your project directory and then run it using the command node app.js from the terminal.

Those commands will start a http server listening on port 8080 and if your request http://localhost:8080 you'll see the following output:

❯ curl http://localhost:8080

          ##         .
    ## ## ##        ==
 ## ## ## ## ##    ===
/"""""""""""""""""\___/ ===
{                       /  ===-
\______ O           __/
 \    \         __/
  \____\_______/


Hello from Docker!

Using Docker init

Run the following command:

 docker init

This utility will walk you through creating the following files with sensible defaults for your project:

• .dockerignore
• Dockerfile
• docker-compose.yaml

Install the Dependencies

 npm install

Running the container service

 docker compose up -d --build

Accessing the Node app

curl localhost:8080

         ##         .
   ## ## ##        ==
## ## ## ## ##    ===
/"""""""""""""""""\___/ ===
{                       /  ===-
\______ O           __/
\    \         __/
 \____\_______/


Hello from Docker!