Resiliency

1. Enable Resiliency Module

   
   

   Use this command to create the ContainerStorageModule Custom Resource with Resiliency:

   oc create -f csm-powerstore.yaml
   

   Example:

   cat << EOF > csm-powerstore.yaml
   apiVersion: storage.dell.com/v1
   kind: ContainerStorageModule
   metadata:
     name: powerstore
     namespace: powerstore
   spec:
     driver:
       csiDriverType: "powerstore"
       configVersion: Default text if no valid parameter is passed.
     modules:
     - name: resiliency
       enabled: true
   EOF
   

   Detailed Configuration: Use the sample file for detailed settings.

   
   

   Check if Resiliency module successfully installed:

   oc get pod -n powerstore
   
   NAME                                     READY   STATUS    RESTARTS   AGE
   powerstore-controller-5bcb5ff8cb-fjdmf   6/6     Running   0          55s
   powerstore-controller-5bcb5ff8cb-n7j79   6/6     Running   0          55s
   powerstore-node-j4jsz                    3/3     Running   0          55s
   powerstore-node-xmrf8                    3/3     Running   0          34s
   

   
   

   Verify the Resiliency Sidecar are displayed in controller pod:

   oc get pod powerstore-controller-5bcb5ff8cb-fjdmf -o jsonpath='{.spec.containers[*].name}'
   
   podmon attacher provisioner snapshotter resizer driver
   

   
   

   Verify the Resiliency Sidecar are displayed in node pod:

   oc get pod powerstore-node-j4jsz -o jsonpath='{.spec.containers[*].name}'
   
   podmon driver registrar
   

2. Protect Pods with Resiliency Module

   
   

   Use this command to enable resiliency protection on a pod

   oc label pods pod-powerstore podmon.dellemc.com/driver=csi-powerstore 
   
   pod/pod-powerstore labeled
   

   
   

   Verify:

   oc get pods -l podmon.dellemc.com/driver=csi-powerstore 
   
   NAME             READY   STATUS    RESTARTS   AGE
   pod-powerstore   1/1     Running   0          5m11s
   

   
   

   Disable resiliency protection on a pod:

   oc label pods pod-powerstore podmon.dellemc.com/driver-
   
   pod/pod-powerstore unlabeled
   

3. Disabling Resiliency Module

   
   

   Use this command to disable resiliency

   oc edit csm powerstore -n powerstore
   

   Example:

   apiVersion: storage.dell.com/v1
   kind: ContainerStorageModule
   metadata:
     name: powerstore
     namespace: powerstore
   spec:
     driver:
       csiDriverType: "powerstore"
       configVersion: Default text if no valid parameter is passed.
     modules:
     - name: resiliency
       enabled: false