Currently all my nodes have the name ubuntu-yakkety.
docker node ls
ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
d7rdq4n4dmrkhyz4ov7ldr31e ubuntu-yakkety Ready Active
iddxyuic586lnla6aw700rdwc ubuntu-yakkety Ready Active
zxcr1yvveccj4soyh2hsjjebk * ubuntu-yakkety Ready Active Leader
In order to create better filters that would be great if I could update node's hostname as node-01 node-02 ... node-99
However, I couldn't find any way to accomplish it in the documentation.
1) Is it possible to update the hostname of an existing Docker node?
2) Is it possible giving a name to a node while joining to swarm?
change hostname: hostname *** or vi /etc/hosts
restart docker: sudo systemctl restart docker
You can see 'Name' user docker info
This trio works well:
echo '127.0.0.1 <hostname>' | sudo tee -a /etc/hosts
sudo hostnamectl set-hostname <hostname>
sudo systemctl restart docker
You will have to login each nodes and set the node hostname use command:
sudo hostnamectl set-hostname <hostname>
Once you changed all nodes hostname, go the the manager node and restart your docker, after that you should be good.