I have some Docker swarm masters and agents I've created using my docker-machine client, but I want a way to allow a trusted colleague to attach his local docker-machine installation to the same hosts. Is this possible?
I have a Docker droplet that I made not through Docker Machine, but this worked for me, and it should work for your use case:
Docker Machine has a generic driver that you can use to connect to an existing Docker remote host (replace the stubbed placeholders with your info):
docker-machine create \
--driver=generic \
--generic-ip-address=IP_ADDRESS \
--generic-ssh-user=USERNAME \
--generic-ssh-key=PATH_TO_SSH_KEY \
--generic-ssh-port=PORT \
MACHINE_NAME
You need to be able to SSH in with the key you provide for it to connect. Also, you'll need to make sure port 2376 is open (ufw allow 2376 in Debian/Ubuntu) and that you can use passwordless sudo (add %sudo ALL=(ALL) NOPASSWD:ALL to /etc/sudoers).
Almost the same peoblem:
I've created a droplet via the web site not using docker machine.
Is it possible to attach docker machine to this droplet?
Best
Jesper