Customizing the Block Storage for VPC configmap

You can customize the Block Storage for VPC configmap for more control over snapshot settings.

Download the Block Storage for VPC configmap and review the parameters.

kubectl get cm addon-vpc-block-csi-driver-configmap -n kube-system -o yaml > vpc-configmap.yaml

Open the configmap.yaml file and update the settings that you want to change.
Reapply the configmap to your cluster.
```
kubectl apply -f vpc-configmap.yaml
```
Verify that the pods are restarted successfully and configurations are applied
```
kubectl get pods -n kube-system | grep vpc-block
```

Block Storage for VPC configmap reference

data:
  IsVolumeSnapshotClassDefault: "true"
  IsStorageClassDefault: "true"
  AttachDetachMinRetryGAP: "3" # Initial retry interval for checking Attach/Detach Status. Default 3 seconds
  AttachDetachMinRetryAttempt: "3" # Number of attempts for AttachDetachMinRetryGAP. Default is 3 retries for 3 seconds retry gap.
  AttachDetachMaxRetryAttempt: "46" # Total number of retries for for checking Attach/Detach Status. Default is 46 times i.e ~7 mins (3 secs * 3 times + 6 secs * 6 times + 10 secs * 10 times)
  AttacherWorkerThreads: "15" # The number of goroutines for processing VolumeAttachments
  AttacherKubeAPIBurst: "10" # The number of requests to the Kubernetes API server, exceeding the QPS, that can be sent at any given time
  AttacherKubeAPIQPS: "5.0" # The number of requests per second sent by a Kubernetes client to the Kubernetes API server.
  
  
  # Adjust the resource request per container
  CSIDriverRegistrarCPURequest: "10m" #container:csi-driver-registrar, resource-type: cpu-request
  CSIDriverRegistrarMemoryRequest: "20Mi" #container:csi-driver-registrar,  resource-type: memory-request
  NodeDriverMemoryRequest: "30m" #container:iks-vpc-block-node-driver, resource-type: cpu-request
  NodeDriverCPURequest: "75Mi" #container:iks-vpc-block-node-driver, resource-type: memory-request
  LivenessProbeCPURequest: "5m" #container:liveness-probe, resource-type: cpu-request
  LivenessProbeMemoryRequest: "10Mi" #container:liveness-probe, resource-type: memory-request
  SecretSidecarCPURequest: "10m" #container:storage-secret-sidecar, resource-type: cpu-request
  SecretSidecarMemoryRequest: "20Mi" #container:storage-secret-sidecar, resource-type: memory-request
  CSIProvisionerCPURequest: "20m" #container:csi-provisioner, resource-type: cpu-request
  CSIProvisionerMemoryRequest: "40Mi" #container:csi-provisioner, resource-type: memory-request
  CSIAttacherCPURequest: "15m" #container:csi-attacher, resource-type: cpu-request
  CSIAttacherMemoryRequest: "30Mi" #container:csi-attacher, resource-type: memory-request
  CSIResizerCPURequest: "20m" #container:csi-resizer, resource-type: cpu-request
  CSIResizerMemoryRequest: "40Mi" #container:csi-resizer, resource-type: memory-request
  BlockDriverCPURequest: "75m" #container:iks-vpc-block-driver, resource-type: cpu-request
  BlockDriverMemoryRequest: "150Mi" #container:iks-vpc-block-driver, resource-type: memory-request
  CSISnapshotterCPURequest: "20m" #container:csi-snapshotter, resource-type: cpu-request
  CSISnapshotterMemoryRequest: "40Mi" #container:csi-snapshotter, resource-type: memory-request

  # Set resource limits per container
  CSIDriverRegistrarCPULimit: "40m" #container:csi-driver-registrar, resource-type: cpu-limit
  CSIDriverRegistrarMemoryLimit: "80Mi" #container:csi-driver-registrar, resource-type: memory-limit
  NodeDriverCPULimit: "120m" #container:iks-vpc-block-node-driver, resource-type: cpu-limit
  NodeDriverMemoryLimit: "300Mi" #container:iks-vpc-block-node-driver, resource-type: memory-limit
  LivenessProbeCPULimit: "20m" #container:liveness-probe, resource-type: cpu-limit
  LivenessProbeMemoryLimit: "40Mi" #container:liveness-probe, resource-type: memory-limit
  SecretSidecarCPULimit: "40m" #container:storage-secret-sidecar, resource-type: cpu-limit
  SecretSidecarMemoryLimit: "80Mi" #container:storage-secret-sidecar, resource-type: memory-limit
  CSIProvisionerCPULimit: "80m" #container:csi-provisioner, resource-type: cpu-limit
  CSIProvisionerMemoryLimit: "160Mi" #container:csi-provisioner, resource-type: memory-limit
  CSIAttacherCPULimits: "60m" #container:csi-attacher, resource-type: cpu-limit
  CSIAttacherMemoryLimit: "120Mi" #container:csi-attacher, resource-type: memory-limit
  CSIResizerCPULimit: "80m" #container:csi-resizer, resource-type: cpu-limit
  CSIResizerMemoryLimit: "160Mi" #container:csi-resizer, resource-type: memory-limit
  BlockDriverCPULimit: "300m" #container:iks-vpc-block-driver, resource-type: cpu-limit
  BlockDriverMemoryLimit: "600Mi" #container:iks-vpc-block-driver, resource-type: memory-limit
  CSISnapshotterCPULimit: "80m" #container:csi-snapshotter, resource-type: cpu-limit
  CSISnapshotterMemoryLimit: "160Mi" #container:csi-snapshotter, resource-type: memory-limit
  CSISnapshotterRetryIntervalStart: "1s" #container:csi-snapshotter, Initial retry interval of failed volume snapshot creation or deletion.
  CSISnapshotterRetryIntervalMax: "300s" #container:csi-snapshotter, Maximum retry interval of failed volume snapshot creation or deletion.
  CSISidecarLogLevel: "5" #container:csi-snapshotter, glog/klog log level
  IsSnapshotEnabled : "true" #container: iks-vpc-block-driver
  CustomSnapshotCreateDelay: "300" #container: iks-vpc-block-driver
  VolumeAttachmentLimit: "12" #container: iks-vpc-block-driver