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The defaults doesn't really allow you to do much, and you will have to setup RBAC policies yourself, to your liking.
Scaling
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cluster nodes
To change the number of nodes in your cluster, you can do the following:
| Code Block |
|---|
$ openstack coe cluster update <your-cluster> replace node_count=<N> |
Increasing the node_count will (obviously) add a worker node to your cluster. This is nice if your are running out of resources.
If you want to decrease the number of nodes, what happens depends on your chose COE. If you're running k8s, magnum will try to find a node with no running containers and delete them. If no empty nodes are found, magnum wil warn you, and delete a node at random. With docker swarm, magnum have no logic to discover an empty node, and will just delete nodes at random.TBA
Upgrading
TBA