File: ig.yaml
Edit ig.yaml file and change number of instances that you need by editing maxSizeand minSize parameters.
To remove the node set minSize and maxSize to 0
If minSize is 0 and maxSize is >0 then the node will not get removed.
Command:
kops create ig testnode --subnet us-east-1b Editor will open afterwards where you can edit parameter for the nodes in the instance group.
Alternative and suggested way can be adding the instance group with a yaml file and adding node with ig.yaml.