hpa.yaml

#list of running HPA
[root@chgvascldp99 morla]# kubectl get hpa -n ns-svc-cas
NAME      REFERENCE              TARGETS   MINPODS   MAXPODS   REPLICAS   AGE
hpa-pod   Deployment/cas-dp-ap   0%/28%    2         2         2          42m

#i trying to update the HPA with the name hpa-pod
[root@chgvascldp99 morla]# kubectl autoscale  hpa-pod  --min=2 --max=5 -n ns-svc-cas
error: resource(s) were provided, but no name, label selector, or --all flag specified

#
[root@chgvascldp99 morla]# kubectl autoscale  deployment cas-dp-ap  --min=2 --max=5 -n ns-svc-cas
deployment.apps "cas-dp-ap" autoscaled

# it create a new one who will fail. 
[root@chgvascldp99 morla]# kubectl get hpa -n ns-svc-cas
NAME        REFERENCE              TARGETS         MINPODS   MAXPODS   REPLICAS   AGE
cas-dp-ap   Deployment/cas-dp-ap   <unknown>/80%   2         5         0          3s
hpa-pod     Deployment/cas-dp-ap   0%/28%          2         2         2          43m