How to stop running node in docker

Question

I have just installed dockers and installed node. I am able to run a basic express site. My issue now is I can't stop it. Control-C is not doing anything.

Temporarily what I did to exit was:

1. Close the docker's terminal.
2. Open a new one.
3. Search for all docker containers that is running.
4. Then docker stop [container]

Is this the proper way?

Answer 1

I don't know if this is too late. But the correct way to do this is to catch the SIGINT (interrupt signal in your javascript).

var process = require('process')
process.on('SIGINT', () => {
  console.info("Interrupted")
  process.exit(0)
})

This should do the trick when you press Ctrl+C

Answer 2

As described here: github: docker-node best practice

You can add the --init flag to your docker run command.

docker run -it --init -p 3000:3000 --name nodetest mynodeimage

Answer 3

I came across this same problem today, and struggled to find an explanation/solution. I discovered (through trial and error) that this only occurs when the CMD in the Dockerfile is set to:

CMD [ "node", "server.js" ]

However, Ctrl+C works fine when the CMD is changed to:

CMD [ "npm", "start" ]

The npm start script in my package.json file is set to node server.js, so I have no idea why this change works, but hopefully this helps.

Answer 4

A docker run should have gave you back the prompt, avoiding the need for CTRL+C, or closing the docker terminal.

Once you log back in that terminal, a docker ps -a + docker stop should be enough to make your container exit (you still need to remove it before trying to launch it again)