Can I use an already-existing VM as docker-machine?

Question

When I am in my virtualbox vm, can I use it as a target for docker-machine?

For example, if I define some variables on it like;

export DOCKER_MACHINE_NAME=example-machine
export DOCKER_HOST=localhost

etc. then use it like,

eval $(docker-machine env localhost)

Thanks in advance

Answer 1

You need to use generic driver to attach to existing VM

docker-machine create -d generic --generic-ip-address <ip> --generic-ssh-key <keypath> --generic-ssh-user <user> --generic-ssh-port 22 <vm name>