How to extend an existing docker image?

Question

I\'m using the official elasticsearch Docker image instead of setting up my own elastic search instance. And that works great, up to the point when I wanted to extend it. I

Answer 1

Simply extend it using a Dockerfile that start with

FROM dockerfile/elasticsearch

and install marvel or ssh-server or whatever you need. Then, end with the correct command to start your services. You can use supervisor to start multple services, see Run a service automatically in a docker container for more info on that.