This is a very simple docker image with pm2, the process manager installed.
The image will use /app folder as the place for the source code and the working directory, so you should provide your app as a volume, i.e;
-v /path/to/app/source:/app
Also, the executable (app entry js file) should be noted as the environment variable APP. The default value for APP variable is bin/www.
To build the image locally you can run:
docker build --rm --no-cache -t mdeanda/node-pm2 https://github.com/mdeanda/docker-node-pm2.git
To setup and run a sample node express application:
express nodetest
cd nodetest
npm install
docker run -it -e "CLUSTER=5" -e "APP=bin/www" -p 80:3000 -v `pwd`:/app mdeanda/node-pm2
Then open up your browser to: http://localhost/