After sudo docker swarm join --token XXXXX YYY.YYY.YYY.YYY:2377 I can attach to swarm as worker successfully. Than I leave this swarm from secondary/slave node and try again with management token. And receive:
Error response from daemon: manager stopped: can't initialize raft node: rpc error: code = Unknown desc = could not connect to prospective new cluster member using its advertised address: rpc error: code = DeadlineExceeded desc = context deadline exceeded
Both nodes directly connected one to another. Firewall in both node is not working. What can be a reason of this issue?
You can add a node as worker and promote it to manager role
docker swarm join --token XXXXX YYY.YYY.YYY.YYY:2377
And on the manager node:
docker node promote SECOND_MANAGER_HOSTNAME
Greate. Many thanks.
@Viacheslav If the answer was helpful, please, mark it as solving your problem