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docker swarm

A container orchestration tool. More information:

  • 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