e2e: Feature flag RBD fscrypt tests (default disabled)

Add test-rbd-fscrypt feature flag to e2e suite. Default disabled as
the current CI system's kernel doesn't have the required features
enabled.

Signed-off-by: Marcel Lauhoff <marcel.lauhoff@suse.com>

e2e/e2e_test.go

@@ -39,6 +39,7 @@ func init() {
 	flag.BoolVar(&deployNFS, "deploy-nfs", false, "deploy nfs csi driver")
 	flag.BoolVar(&testCephFS, "test-cephfs", true, "test cephFS csi driver")
 	flag.BoolVar(&testRBD, "test-rbd", true, "test rbd csi driver")
+	flag.BoolVar(&testRBDFSCrypt, "test-rbd-fscrypt", false, "test rbd csi driver fscrypt support")
 	flag.BoolVar(&testNBD, "test-nbd", false, "test rbd csi driver with rbd-nbd mounter")
 	flag.BoolVar(&testNFS, "test-nfs", false, "test nfs csi driver")
 	flag.BoolVar(&helmTest, "helm-test", false, "tests running on deployment via helm")

e2e/rbd.go

@@ -241,6 +241,11 @@ func ByFileAndBlockEncryption(
 		callback(validateEncryptedPVCAndAppBinding, isBlockEncryptedPVC, util.EncryptionTypeBlock)
 	})
 	By(text+" (file)", func() {
+		if !testRBDFSCrypt {
+			e2elog.Logf("skipping RBD fscrypt file encryption test")
+
+			return
+		}
 		callback(validateEncryptedFilesystemAndAppBinding, isFileEncryptedPVC, util.EncryptionTypeFile)
 	})
 }

e2e/utils.go

@@ -85,6 +85,7 @@ var (
 	deployNFS        bool
 	testCephFS       bool
 	testRBD          bool
+	testRBDFSCrypt   bool
 	testNBD          bool
 	testNFS          bool
 	helmTest         bool