Auto-scaling of agent/worker nodes in Azure Container Service [Kubernetes]

Question

I am working with windows + kubernetes cluster on ACS (Azure Container Service). I have few queries about the auto-scaling of agents/worker nodes in ACS.

Suppose I have a cluster of 1 master and 5 worker nodes. I have 200 running pods and these pods are distributed along the 5 worker nodes and the resources of these 5 nodes are used. Now, if I deploy a new pod or scale the running pods which will requires more resources, so is there any way ACS can auto-scale the worker nodes to like 7 worker nodes based on the resource usage?

Same case, if resource usage is reduced, can ACS descale the worker nodes to 3 worker nodes from 7 nodes?

My question is not related to auto-scaling of pods as provided by kubernetes, I am talking about auto-scaling of worker/agent nodes which are managed by ACS.

Answer 1

My question is not related to auto-scaling of pods as provided by kubernetes, I am talking about auto-scaling of worker/agent nodes which are managed by ACS

Currently, autoscaling of agent nodes in a container service cluster is not supported.

For now, we can use Azure CLI2.0 to scale down or up by command az acs scale

For example:
azure acs scale -g myResourceGroup -n containerservice-myACSName --new-agent-count 10

More information about az acs scale command, please refer to this link .

Answer 2

You can use azure-cli. The command you would need is az acs scale