mirror of https://github.com/docker/cli.git
47 lines
1.8 KiB
Markdown
47 lines
1.8 KiB
Markdown
# swarm update
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<!---MARKER_GEN_START-->
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Update the swarm
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### Options
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| Name | Type | Default | Description |
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|:-------------------------|:--------------|:------------|:------------------------------------------------------------|
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| `--autolock` | `bool` | | Change manager autolocking setting (true\|false) |
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| `--cert-expiry` | `duration` | `2160h0m0s` | Validity period for node certificates (ns\|us\|ms\|s\|m\|h) |
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| `--dispatcher-heartbeat` | `duration` | `5s` | Dispatcher heartbeat period (ns\|us\|ms\|s\|m\|h) |
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| `--external-ca` | `external-ca` | | Specifications of one or more certificate signing endpoints |
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| `--max-snapshots` | `uint64` | `0` | Number of additional Raft snapshots to retain |
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| `--snapshot-interval` | `uint64` | `10000` | Number of log entries between Raft snapshots |
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| `--task-history-limit` | `int64` | `5` | Task history retention limit |
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<!---MARKER_GEN_END-->
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## Description
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Updates a swarm with new parameter values.
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> **Note**
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>
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> 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
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> [Swarm mode section](https://docs.docker.com/engine/swarm/) in the
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> documentation.
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## Examples
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```console
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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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