Usage: docker swarm update [OPTIONS] Update the swarm Options: --autolock Change manager autolocking setting (true|false) --cert-expiry duration Validity period for node certificates (ns|us|ms|s|m|h) (default 2160h0m0s) --dispatcher-heartbeat duration Dispatcher heartbeat period (ns|us|ms|s|m|h) (default 5s) --external-ca external-ca Specifications of one or more certificate signing endpoints --help Print usage --max-snapshots uint Number of additional Raft snapshots to retain --snapshot-interval uint Number of log entries between Raft snapshots (default 10000) --task-history-limit int Task history retention limit (default 5)
Updates a swarm with new parameter values. This command must target a manager node.
$ docker swarm update --cert-expiry 720h