How to add or remove label metadata in the swarm node

Question

Hi Team,

I have one swarm node. I want to add one label to this node. So, I can manage the node properly. How to do that?

Answer 1

Node labels provide a flexible method of node organization. You can also use node labels in service constraints. Apply constraints when you create a service to limit the nodes where the scheduler assigns tasks for the service.

You need to pass the --label-add flag once for each node label you want to add.

$ docker node update --label-add foo --label-add bar=baz node-1
node-1