What is opposite of docker swarm init?

Question

With a single host with a swarm that has been created with init, the host gets networks created etc.

There appears to be no 'docker swarm destroy' or similar that purges the system back to a state before the swarm. I did a leave --force but that left networks.

Do you have to manually tidy up a bunch of things you don't know were created or is there an easy command to get back to a clean setup?

Thanks

Answer 1

docker swarm leave is the only command for reverting swarm membership. It cleans up all swarm specific artefacts that were created by docker stack deploy , eg overlay networks and secrets.

If you still got user defined networks after leaving the swarm, these were probably created by docker-compose . Note that this is not swarm specific, it can also happen in standalone mode.

You can get a listing of all networks that were created by docker-compose with

docker network ls --filter label=com.docker.compose.project

and get rid of them with

docker network rm $(docker network ls --filter label=com.docker.compose.project -q)

Answer 2

如果 docker 实例是管理器： docker swarm leave --force 。