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docker swarm

A container orchestration tool. More information: https://docs.docker.com/engine/swarm/.

• 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 {{hours}}h{{minutes}}m{{seconds}}s