docker-swarm - Man Page
Manage Swarm
Examples (TL;DR)
- Initialize a swarm cluster:
docker swarm init - Display the token to join a manager or a worker:
docker swarm join-token worker|manager - Join a new node to the cluster:
docker swarm join --token token manager_node_url:2377 - Remove a worker from the swarm (run inside the worker node):
docker swarm leave - Display the current CA certificate in PEM format:
docker swarm ca - Rotate the current CA certificate and display the new certificate:
docker swarm ca --rotate - Change the valid period for node certificates:
docker swarm update --cert-expiry hourshminutesmsecondss
Synopsis
docker swarm
Description
Manage Swarm
See Also
docker(1), docker-swarm-ca(1), docker-swarm-init(1), docker-swarm-join(1), docker-swarm-join-token(1), docker-swarm-leave(1), docker-swarm-unlock(1), docker-swarm-unlock-key(1), docker-swarm-update(1)
Referenced By
docker-swarm-ca(1), docker-swarm-init(1), docker-swarm-join(1), docker-swarm-join-token(1), docker-swarm-leave(1), docker-swarm-unlock(1), docker-swarm-unlock-key(1), docker-swarm-update(1).
Oct 2025 Docker Community Docker User Manuals