test: actually test "Dynamic PV (default fs)" with default FS type

There are cases where it really matters whether the storage class
contains a FS
type (kubernetes-csi/external-provisioner#328 (comment)). To
cover that with our tests we need a storage class that has just the
defaults.

Explicitly setting reclaim policy and immediate binding also only
makes sense to show that those options exists, which is covered by
Kubernetes documentation. We better ensure that we really use the
defaults by not even setting those.

Makefile

@@ -177,6 +177,7 @@ KUSTOMIZE += $(foreach version,$(KUSTOMIZE_KUBERNETES_VERSIONS),$(subst X.XX,$(v
 # use different base.
 KUSTOMIZE += $(subst kubernetes-base,kubernetes-1.19-alpha,$(subst X.XX,1.19-alpha,$(KUSTOMIZE_KUBERNETES_OUTPUT)))
 
+KUSTOMIZE += deploy/common/pmem-storageclass-default.yaml=deploy/kustomize/storageclass
 KUSTOMIZE += deploy/common/pmem-storageclass-ext4.yaml=deploy/kustomize/storageclass-ext4
 KUSTOMIZE += deploy/common/pmem-storageclass-xfs.yaml=deploy/kustomize/storageclass-xfs
 KUSTOMIZE += deploy/common/pmem-storageclass-cache.yaml=deploy/kustomize/storageclass-cache

deploy/common/pmem-storageclass-cache.yaml

@@ -8,5 +8,3 @@ parameters:
   cacheSize: "2"
   persistencyModel: cache
 provisioner: pmem-csi.intel.com
-reclaimPolicy: Delete
-volumeBindingMode: Immediate

deploy/common/pmem-storageclass-ext4.yaml

@@ -8,5 +8,3 @@ parameters:
   csi.storage.k8s.io/fstype: ext4
   eraseafter: "true"
 provisioner: pmem-csi.intel.com
-reclaimPolicy: Delete
-volumeBindingMode: Immediate

deploy/common/pmem-storageclass-late-binding.yaml

@@ -5,5 +5,4 @@ kind: StorageClass
 metadata:
   name: pmem-csi-sc-late-binding
 provisioner: pmem-csi.intel.com
-reclaimPolicy: Delete
 volumeBindingMode: WaitForFirstConsumer

deploy/common/pmem-storageclass-xfs.yaml

@@ -8,5 +8,3 @@ parameters:
   csi.storage.k8s.io/fstype: xfs
   eraseafter: "false"
 provisioner: pmem-csi.intel.com
-reclaimPolicy: Delete
-volumeBindingMode: Immediate

deploy/kustomize/storageclass/pmem-storageclass.yaml

@@ -3,5 +3,3 @@ kind: StorageClass
 metadata:
   name: pmem-csi-sc
 provisioner: pmem-csi.intel.com
-reclaimPolicy: Delete
-volumeBindingMode: Immediate

test/e2e/driver/driver.go

@@ -56,7 +56,7 @@ func New(name, csiDriverName string, fsTypes []string, scManifests map[string]st
 	}
 	if scManifests == nil {
 		scManifests = map[string]string{
-			"":     "deploy/common/pmem-storageclass-ext4.yaml",
+			"":     "deploy/common/pmem-storageclass-default.yaml",
 			"ext4": "deploy/common/pmem-storageclass-ext4.yaml",
 			"xfs":  "deploy/common/pmem-storageclass-xfs.yaml",
 		}