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these markdown files are not consumed directly in the docs, but only their content is included through the YAML does, so there's no need to have these comments in them Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
48 lines
1.5 KiB
Markdown
48 lines
1.5 KiB
Markdown
---
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title: "swarm update"
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description: "The swarm update command description and usage"
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keywords: "swarm, update"
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---
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# swarm update
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```markdown
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Usage: docker swarm update [OPTIONS]
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Update the swarm
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Options:
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--autolock Change manager autolocking setting (true|false)
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--cert-expiry duration Validity period for node certificates (ns|us|ms|s|m|h) (default 2160h0m0s)
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--dispatcher-heartbeat duration Dispatcher heartbeat period (ns|us|ms|s|m|h) (default 5s)
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--external-ca external-ca Specifications of one or more certificate signing endpoints
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--help Print usage
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--max-snapshots uint Number of additional Raft snapshots to retain
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--snapshot-interval uint Number of log entries between Raft snapshots (default 10000)
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--task-history-limit int Task history retention limit (default 5)
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```
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## Description
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Updates a swarm with new parameter values.
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> **Note**: This is a cluster management command, and must be executed on a swarm
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> manager node. To learn about managers and workers, refer to the [Swarm mode
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> section](https://docs.docker.com/engine/swarm/) in the documentation.
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## Examples
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```bash
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$ docker swarm update --cert-expiry 720h
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```
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## Related commands
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* [swarm ca](swarm_ca.md)
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* [swarm init](swarm_init.md)
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* [swarm join](swarm_join.md)
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* [swarm join-token](swarm_join_token.md)
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* [swarm leave](swarm_leave.md)
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* [swarm unlock](swarm_unlock.md)
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* [swarm unlock-key](swarm_unlock_key.md)
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