check to see if the node is part of a swarm, and if so, if it is unlocked first.
If neither of these are true, abort the command.
Signed-off-by: Ying Li <ying.li@docker.com>
- Neither swarm init or swarm update should take an unlock key
- Add an autolock flag to turn on autolock
- Make the necessary docker api changes
- Add SwarmGetUnlockKey API call and use it when turning on autolock
- Add swarm unlock-key subcommand
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>