MicroK8s : Add Nodes2020/08/03

If you'd like to add more Nodes to your MicroK8s Cluster, Configure like follows.

[1]	Make sure commands to join in Cluster on primary Node.

root@dlp:~#

microk8s add-node

Join node with: microk8s join 10.0.0.30:25000/8a7b7760190d27f0e4598aa705f7c495

If the node you are adding is not reachable through the default interface you can use one of the following:
 microk8s join 10.0.0.30:25000/8a7b7760190d27f0e4598aa705f7c495
 microk8s join 10.1.21.0:25000/8a7b7760190d27f0e4598aa705f7c495

[2]	On a new Node, Install MicroK8s and join in Cluster.

root@node01:~#

snap install microk8s --classic

microk8s v1.18.6 from Canonical installed

# run the command confirmed in [1]

root@node01:~#

microk8s join 10.0.0.30:25000/8a7b7760190d27f0e4598aa705f7c495

[3]	On primary Node, Make sure a new Node has been added in Cluster.

root@dlp:~#

microk8s kubectl get nodes

NAME               STATUS   ROLES    AGE   VERSION
dlp.srv.world      Ready    <none>   45m   v1.18.6-1+64f53401f200a7
node01.srv.world   Ready    <none>   71s   v1.18.6-1+64f53401f200a7

[4]	To remove a Node, Set like follows.

# specify Node name and run [remove-node]

root@dlp:~#

microk8s remove-node node01.srv.world

root@dlp:~#

microk8s kubectl get nodes

NAME            STATUS   ROLES    AGE   VERSION
dlp.srv.world   Ready    <none>   46m   v1.18.6-1+64f53401f200a7

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