docker-evolve

Keep evolving a container's state to effectively use it as a constant subsystem.

Usage

Start with a new container:

$ docker-evolve –-name ubuntu --base-image ubuntu -v $PWD:/host

Connect to the container as usual:

$ docker exec -it ubuntu bash

After making changes that you want to persist but you need to update the container configuration, for example to expose a port, pass the parameters to docker-evolve:

$ docker-evolve --name ubuntu -v $PWD:/host -p 8090:8090

This will commit the container's current state and re-create it using the new image and the specified arguments. Note how you can now skip the --base-image argument because the container already exists.