Open
Description
Which component are you using?:
cluster-autoscaler
What version of the component are you using?:
Component version: Cluster Autoscaler 1.30.1
Image = registry.k8s.io/autoscaling/cluster-autoscaler:v1.30.1
What k8s version are you using (kubectl version)?:
kubectl version Output
$ kubectl version Client Version: v1.30.2 Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3 Server Version: v1.30.2
What environment is this in?:
KWOK cluster
kwokctl version v0.6.0 go1.22.3 (linux/amd64)
What did you expect to happen?:
I expected the node to scale.
What happened instead?:
Nothing happened
How to reproduce it (as minimally and precisely as possible):
ca.demo
# Scale node up & down using CA
# Set up Cluster
kwokctl create cluster --enable-metrics-server --enable-crds=Metric --enable-crds=ClusterResourceUsage --enable-crds=ResourceUsage
# Apply metrics usage
kubectl apply -f https://github.com/kubernetes-sigs/kwok/releases/download/v0.6.0/metrics-usage.yaml
## Create the nodes
kwokctl scale node --replicas 1
kubectl get node node-000000 -o yaml > node.yaml
# Configure cluster-autoscaler to use kwok cloud provider
helm repo add autoscaler https://kubernetes.github.io/autoscaler
helm upgrade --install cluster-autoscaler autoscaler/cluster-autoscaler \
--set "autoDiscovery.clusterName"="kwok-kwok" \
--set "cloudprovider"=kwok --set "image.tag"="v1.30.1" \
--set "image.repository"="registry.k8s.io/autoscaling/cluster-autoscaler"
helm template cluster-autoscaler autoscaler/cluster-autoscaler --set "cloudProvider"="kwok" \
-s templates/configmap.yaml \
--namespace=default > config-map-kwok.yaml
kubectl apply -f config-map-kwok-copy.yaml
# static
# delete the existing configmap
kubectl delete configmap kwok-provider-templates
# create a new configmap with your node yamls
kubectl create configmap kwok-provider-templates --from-file=templates=node.yaml
## Create pods
kubectl apply -f deployment.yamldeployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:alpine
ports:
- containerPort: 80
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: type
operator: In
values:
- kwok
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- key: app
operator: In
values:
- nginx
topologyKey: kubernetes.io/hostname