In this section we'll create a simple node.js process and wrap it in a docker container.
Create a new directory to work from
$ mkdir meetup
$ cd meetup
- In the meetup directory, create server.js using your preferred editor and add the following code:
var http = require('http');
var handleRequest = function(request, response) {
console.log('Received request for URL: ' + request.url);
response.writeHead(200);
response.end('Hello World!');
};
var www = http.createServer(handleRequest);
www.listen(8080);
- In the meetup directory, create a file named "Dockerfile"... (nope, it doesn't need an extension) and enter the following code:
FROM node:6.9.2
EXPOSE 8080
COPY server.js .
CMD node server.js
- Build the Docker image
$ docker build -t mynode:v1.0 .
- Run the image and test it locally
$ docker run --rm -d -p 8080:8080 --name mynode-sample mynode:v1.0
For a quick test of the container running locally on your machine, In your browser, access http://localhost:8080.
- Stop the locally running container
$ docker stop mynode-sample