Error response from daemon This node is already part of a swarm Use docker swarm leave to leave this swarm and join another one

Question

Hi Guys,

I am trying to add a worker node to the Docker swarm. But it is showing me the below error.

$ docker swarm join --token xxxxxxxxxxxxxxxxxxxxxxxxxxkliq8kq2ov-bf2inz84bhwbdzp9ddvxrbfoi 172.31.11.98:2377
Error response from daemon: This node is already part of a swarm. Use "docker swarm leave" to leave this swarm and join another one.

How to solve the error?

Answer 1

Hi@akhtar,

It is showing in the error that you have already used the node in your Docker swarm earlier. So if you want to add the node in another swarm, then you need to leave from the earlier swarm. You can use the below command to do the same.

$ docker swarm leave --force
Node left the swarm.