kiranchavala commented on issue #52: URL: https://github.com/apache/cloudstack-kubernetes-provider/issues/52#issuecomment-1968230660
Hi @saffronjam The autoscaling feature works fine on a k8s cluster deployed by CKS. Please find the steps that i have followed After you enable autoscaling on the cluster  Make sure the autoscaling pod is deployed in the cluster ``` kubectl get pods -A NAMESPACE NAME READY STATUS RESTARTS AGE kube-system cluster-autoscaler-8d8894d6c-q8r4h 1/1 Running 0 19m ``` Before scaling ``` ➜ ~ k get nodes -A NAME STATUS ROLES AGE VERSION gh-control-18debd77e18 Ready control-plane 10h v1.28.4 gh-node-18debd8440c Ready <none> 10h v1.28.4 ``` Deploy a application `kubectl create deployment hello-node --image=registry.k8s.io/e2e-test-images/agnhost:2.39 -- /agnhost netexec --http-port=80` ``` ➜ ~ k get pods -A NAMESPACE NAME READY STATUS RESTARTS AGE default hello-node-7c6c5fb9d8-bgd69 1/1 Running 0 10h ``` Scale the application `kubectl scale --replicas=150 deployment/hello-node` logs from the autoscaler pod ``` I0228 04:51:46.798087 1 reflector.go:536] /home/djumani/lab/autoscaler/cluster-autoscaler/utils/kubernetes/listers.go:356: Watch close - *v1.StatefulSet total 9 items received I0228 04:51:51.244004 1 static_autoscaler.go:235] Starting main loop I0228 04:51:51.244382 1 client.go:169] NewAPIRequest API request URL:http://10.0.34.2:8080/client/api?apiKey=***&command=listKubernetesClusters&id=14b42c5d-e7e6-4c41-b638-5facb98b0a93&response=json&signature=*** I0228 04:51:51.279721 1 client.go:175] NewAPIRequest response status code:200 I0228 04:51:51.280798 1 cloudstack_manager.go:88] Got cluster : &{14b42c5d-e7e6-4c41-b638-5facb98b0a93 gh 2 3 1 1 [0xc0013bfad0 0xc0013bfb00] map[gh-control-18debd77e18:0xc0013bfad0 gh-node-18debd8440c:0xc0013bfb00]} W0228 04:51:51.292009 1 clusterstate.go:590] Failed to get nodegroup for dc95f481-15a3-4629-bb78-055fbe4a7139: Unable to find node dc95f481-15a3-4629-bb78-055fbe4a7139 in cluster W0228 04:51:51.292052 1 clusterstate.go:590] Failed to get nodegroup for facdd040-53fe-4984-8654-c186a7cdde9b: Unable to find node facdd040-53fe-4984-8654-c186a7cdde9b in cluster I0228 04:51:51.292095 1 static_autoscaler.go:341] 2 unregistered nodes present I0228 04:51:51.292105 1 static_autoscaler.go:624] Removing unregistered node dc95f481-15a3-4629-bb78-055fbe4a7139 W0228 04:51:51.292126 1 static_autoscaler.go:627] Failed to get node group for dc95f481-15a3-4629-bb78-055fbe4a7139: Unable to find node dc95f481-15a3-4629-bb78-055fbe4a7139 in cluster W0228 04:51:51.292137 1 static_autoscaler.go:346] Failed to remove unregistered nodes: Unable to find node dc95f481-15a3-4629-bb78-055fbe4a7139 in cluster I0228 04:51:51.292569 1 filter_out_schedulable.go:65] Filtering out schedulables I0228 04:51:51.292590 1 filter_out_schedulable.go:137] Filtered out 0 pods using hints I0228 04:51:51.624523 1 filter_out_schedulable.go:175] 44 pods were kept as unschedulable based on caching I0228 04:51:51.624568 1 filter_out_schedulable.go:176] 0 pods marked as unschedulable can be scheduled. I0228 04:51:51.624667 1 filter_out_schedulable.go:87] No schedulable pods I0228 04:51:51.870314 1 static_autoscaler.go:480] Calculating unneeded nodes I0228 04:51:51.870353 1 pre_filtering_processor.go:66] Skipping gh-control-18debd77e18 - node group min size reached I0228 04:51:51.870361 1 pre_filtering_processor.go:66] Skipping gh-node-18debd8440c - node group min size reached I0228 04:51:51.870413 1 static_autoscaler.go:534] Scale down status: unneededOnly=false lastScaleUpTime=2024-02-27 17:39:33.032517071 +0000 UTC m=-3594.093061754 lastScaleDownDeleteTime=2024-02-27 17:39:33.032517071 +0000 UTC m=-3594.093061754 lastScaleDownFailTime=2024-02-27 17:39:33.032517071 +0000 UTC m=-3594.093061754 scaleDownForbidden=false isDeleteInProgress=false scaleDownInCooldown=false I0228 04:52:22.258545 1 scale_up.go:468] Best option to resize: 14b42c5d-e7e6-4c41-b638-5facb98b0a93 I0228 04:52:22.258602 1 scale_up.go:472] Estimated 1 nodes needed in 14b42c5d-e7e6-4c41-b638-5facb98b0a93 I0228 04:52:22.266675 1 scale_up.go:595] Final scale-up plan: [{14b42c5d-e7e6-4c41-b638-5facb98b0a93 1->2 (max: 3)}] I0228 04:52:22.266915 1 scale_up.go:691] Scale-up: setting group 14b42c5d-e7e6-4c41-b638-5facb98b0a93 size to 2 I0228 04:52:22.267040 1 cloudstack_node_group.go:57] Increase Cluster : 14b42c5d-e7e6-4c41-b638-5facb98b0a93 by 1 I0228 04:52:22.267238 1 event_sink_logging_wrapper.go:48] Event(v1.ObjectReference{Kind:"ConfigMap", Namespace:"kube-system", Name:"cluster-autoscaler-status", UID:"3e317689-2939-4a66-b764-b2bb938c433c", APIVersion:"v1", ResourceVersion:"75712", FieldPath:""}): type: 'Normal' reason: 'ScaledUpGroup' Scale-up: setting group 14b42c5d-e7e6-4c41-b638-5facb98b0a93 size to 2 instead of 1 (max: 3) I0228 04:52:22.267350 1 client.go:169] NewAPIRequest API request URL:http://10.0.34.2:8080/client/api?apiKey=***&command=scaleKubernetesCluster&id=14b42c5d-e7e6-4c41-b638-5facb98b0a93&response=json&size=2&signature=*** I0228 04:52:22.297307 1 client.go:175] NewAPIRequest response status code:200 I0228 04:52:28.385682 1 reflector.go:536] k8s.io/client-go/informers/factory.go:134: Watch close - *v1.Node total 10 items received I0228 04:52:32.324971 1 client.go:169] NewAPIRequest API request URL:http://10.0.34.2:8080/client/api?apiKey=***&command=queryAsyncJobResult&jobid=4e62a5a3-825c-435e-a6df-c22e756ee5e4&response=json&signature=*** I0228 04:52:32.346120 1 client.go:175] NewAPIRequest response status code:200 I0228 04:52:32.360171 1 client.go:110] Still waiting for job 4e62a5a3-825c-435e-a6df-c22e756ee5e4 to complete I0228 04:52:33.993372 1 reflector.go:536] /home/djumani/lab/autoscaler/cluster-autoscaler/utils/kubernetes/listers.go:188: Watch close - *v1.Pod total 306 items received I0228 04:52:42.328416 1 client.go:169] NewAPIRequest API request URL:http://10.0.34.2:8080/client/api?apiKey=***&command=queryAsyncJobResult&jobid=4e62a5a3-825c-435e-a6df-c22e756ee5e4&response=json&signature=*** I0228 04:52:42.357795 1 client.go:175] NewAPIRequest response status code:200 I0228 04:52:52.356394 1 client.go:110] Still waiting for job 4e62a5a3-825c-435e-a6df-c22e756ee5e4 to complete ``` ``` ➜ ~ k get nodes -A NAME STATUS ROLES AGE VERSION gh-control-18debd77e18 Ready control-plane 10h v1.28.4 gh-node-18debd8440c Ready <none> 10h v1.28.4 gh-node-18dee0e78ba Ready <none> 42s v1.28.4 ``` -- This is an automated message from the Apache Git Service. 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