docker swarm manager / worker interchange

[root@localhost ~]# docker swarm init --advertise-addr 192.168.0.106
Swarm initialized: current node (u97ht8jei70u8zjvc3e4huy9f) is now a manager.

To add a worker to this swarm, run the following command:

    docker swarm join \
    --token SWMTKN-1-2znm7cfg1oripkia3fefm9wwgkrw8xrf3yr4qd72acylof0fak-8iz8akqfcgh74w5ajrft47sx6 \
    192.168.0.106:2377

To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

adding a node to manager on worker

[root@localhost ~]# docker node ls
ID                           HOSTNAME               STATUS  AVAILABILITY  MANAGER STATUS
7snb6bpybzlezopye7e0b542n    worker                 Ready   Active     
u97ht8jei70u8zjvc3e4huy9f *  localhost.localdomain  Ready   Active        Leader


root@localhost ~]# docker swarm join-token manager
To add a manager to this swarm, run the following command:

    docker swarm join \
    --token SWMTKN-1-2znm7cfg1oripkia3fefm9wwgkrw8xrf3yr4qd72acylof0fak-0ohwifv0kyf7ds1qmsjn3ko5x \
    192.168.0.106:2377

worker

[root@worker ~]# docker swarm join \
>     --token SWMTKN-1-2znm7cfg1oripkia3fefm9wwgkrw8xrf3yr4qd72acylof0fak-8iz8akqfcgh74w5ajrft47sx6 \
>     192.168.0.106:2377

This node joined a swarm as a worker.


[root@worker ~]# docker swarm join \
>     --token SWMTKN-1-2znm7cfg1oripkia3fefm9wwgkrw8xrf3yr4qd72acylof0fak-0ohwifv0kyf7ds1qmsjn3ko5x \
>     192.168.0.106:2377
Error response from daemon: This node is already part of a swarm. Use "docker swarm leave" to leave this swarm and join another one.

[root@worker ~]# docker swarm leave
Node left the swarm.
[root@worker ~]# docker swarm join \
>     --token SWMTKN-1-2znm7cfg1oripkia3fefm9wwgkrw8xrf3yr4qd72acylof0fak-0ohwifv0kyf7ds1qmsjn3ko5x \
>     192.168.0.106:2377

This node joined a swarm as a manager.

[root@worker ~]# docker node ls

ID                           HOSTNAME               STATUS  AVAILABILITY  MANAGER STATUS

7snb6bpybzlezopye7e0b542n    worker                 Down    Active        

u97ht8jei70u8zjvc3e4huy9f    localhost.localdomain  Ready   Active        Leader

yz3bbowbgnqxu1prvf8x63xzj *  worker                 Ready   Active        Reachable

[root@worker ~]# 

on manager [root@localhost ~]# docker node ls

ID                           HOSTNAME               STATUS  AVAILABILITY  MANAGER STATUS

7snb6bpybzlezopye7e0b542n    worker                 Down    Active        

u97ht8jei70u8zjvc3e4huy9f *  localhost.localdomain  Ready   Active        Leader

yz3bbowbgnqxu1prvf8x63xzj    worker                 Ready   Active        Reachable

[root@localhost ~]#