jubianchi/docker-node-4 repository overview

⁠docker-node-4

⁠Why ?

Because:

• hwestphal/nodebox⁠ is not up-to-date (it tracks node 0.10 branch)
• you don't need a full Debian (or whatever distro) to run a single nodejs process
• nodejs 4.x is the future
• ...

⁠How ?

This docker image is built on top of BusyBox⁠ (using progrium/busybox⁠ as the base image) and highly inspired of hwestphal/nodebox⁠.

Thanks to the size of BusyBox, the image weights about 40MB and provides everything you need to run a nodejs application.

⁠Use it

This is as simple as:

docker run --rm jubianchi/docker-node-4 -v
v4.1.0

Let's say you have an nodejs application which main file is index.js:

'use strict';

let main = () => console.log('Hello World!');

process.on('SIGUSR2', () => main());
process.on('SIGINT', () => process.exit(1));
process.on('SIGTERM', () => process.exit(1));

main();
process.stdin.resume();

And you want to run it in a docker-node-4 container:

docker run --rm -v $(pwd):/app --name test_app jubianchi/docker-node-4 /app/index.js
Hello World!

Now if you want to:

• restart the application: docker kill -s SIGUSR2 test_app
• stop the application: docker kill test_app or CTRL+C

Pretty simple! Now what if you want to run an actual application ?

⁠More complex use-case

You will likely want to run more complex application inside this container. In this case, you'll probably have to run npm install or whatever is needed to make your app run. In this case you should extend this base image to build your own application container:

FROM jubianchi/docker-node-4

ENV NODE_ENV=production

COPY app /app

WORKDIR /app

RUN npm install && \
    npm cache clear

ENTRYPOINT ["/node-v4.1.0-linux-x64/bin/node", "/app/index.js"]