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moby--moby/docs/reference/commandline/swarm_update.md
Misty Stanley-Jones b30609446d Convert Markdown frontmatter to YAML 
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Signed-off-by: Misty Stanley-Jones <misty@docker.com>
2016-10-14 15:44:55 -07:00

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title description keywords
swarm update The swarm update command description and usage
swarm, update

swarm update

Usage:  docker swarm update [OPTIONS]

Update the swarm

Options:
      --cert-expiry duration            Validity period for node certificates (default 2160h0m0s)
      --dispatcher-heartbeat duration   Dispatcher heartbeat period (default 5s)
      --external-ca value               Specifications of one or more certificate signing endpoints
      --help                            Print usage
      --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

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