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DockerCLI/docs/reference/commandline/node_promote.md

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node promote The node promote command description and usage node, promote

node promote

Usage:  docker node promote NODE [NODE...]

Promote one or more nodes to manager in the swarm

Options:
      --help   Print usage

Description

Promotes a node to manager. This command can only be executed on a manager node.

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 in the documentation.

Examples

$ docker node promote <node name>

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