When nodes add themselves to a swarm, it is a nice opportunity to set some labels using information available locally. Currently this requires using
docker node update instead which won’t work on worker nodes, which makes it harder to get the information available locally added as node labels.
So, something like this would be nice:
docker swarm join \ --token SWMTKN-1-5u73v65jpqeq1x1noh4ech6d5q83bumjd0kma7l1aft93rspnz-d8rx56ksb14bwkube2r8r7d86 \ --label-add foo=bar 192.168.77.21:2377
This would add the node and set the node labels at the same time so there is no need for a separate
docker node update --label-add foo=bar from a different machine.