DockerCLI/docs/reference/commandline/swarm_unlock.md

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---
title: "swarm unlock"
description: "The swarm unlock command description and usage"
keywords: "swarm, unlock"
---
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# swarm unlock
```markdown
Usage: docker swarm unlock
Unlock swarm
Options:
--help Print usage
```
Unlocks a locked manager using a user-supplied unlock key. This command must be
used to reactivate a manager after its Docker daemon restarts if the autolock
setting is turned on. The unlock key is printed at the time when autolock is
enabled, and is also available from the `docker swarm unlock-key` command.
```bash
$ docker swarm unlock
Please enter unlock key:
```
## Related information
* [swarm init](swarm_init.md)
* [swarm update](swarm_update.md)