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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

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