| # swarm unlock |
| |
| <!---MARKER_GEN_START--> |
| Unlock swarm |
| |
| |
| <!---MARKER_GEN_END--> |
| |
| ## Description |
| |
| 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. |
| |
| > **Note** |
| > |
| > This is a cluster management command, and must be executed on a swarm |
| > manager node. To learn about managers and workers, refer to the |
| > [Swarm mode section](https://docs.docker.com/engine/swarm/) in the |
| > documentation. |
| |
| ## Examples |
| |
| ```console |
| $ docker swarm unlock |
| Please enter unlock key: |
| ``` |
| |
| ## Related commands |
| |
| * [swarm ca](swarm_ca.md) |
| * [swarm init](swarm_init.md) |
| * [swarm join](swarm_join.md) |
| * [swarm join-token](swarm_join-token.md) |
| * [swarm leave](swarm_leave.md) |
| * [swarm unlock-key](swarm_unlock-key.md) |
| * [swarm update](swarm_update.md) |
