func runUnlock(dockerCli command.Cli, opts unlockOptions) error {
client := dockerCli.Client()
ctx := context.Background()
// First see if the node is actually part of a swarm, and if it is actually locked first.
// If it's in any other state than locked, don't ask for the key.
info, err := client.Info(ctx)
if err != nil {
return err
}
switch info.Swarm.LocalNodeState {
case swarm.LocalNodeStateInactive:
return errors.New("Error: This node is not part of a swarm")
case swarm.LocalNodeStateLocked:
break
default:
return errors.New("Error: swarm is not locked")
}
key, err := readKey(dockerCli.In(), "Please enter unlock key: ")
if err != nil {
return err
}
req := swarm.UnlockRequest{
UnlockKey: key,
}
return client.SwarmUnlock(ctx, req)
}
