How to connect to a docker container

Question

I have a docker container running ubuntu and a simple node express site.

I am connected to container like this

docker run -i -t -p 8080:3000 node-express

The container node app runs from pm2, so it continues as soon as I log out of the container.

CONTAINER ID        IMAGE
f32de2737e80        node-express:latest

Now let's say I want to update my application.

I guess I need to connect to the container, stop the node app and do an update, eg. git pull

, then restart it.

My first question is, how do I reconnect to this container?

Another question I have is, is this the usual approach for updating a running container in production?

+3

steven iseki 23 jul. 15 at 6:47 am

1 answer

VonC · Accepted Answer · 2015-07-23T06:51:24+0000

You might consider docker exec

to open bash in your working container.

docker exec -it f32de2737e80 bash

But in the comments, the updated app should be done by modifying the Dockerfile and rebuilding the image.