e2e: add e2e for user secret based metadata encryption

This commit adds e2e for user secret based metadata encryption,
adds user-secret.yaml and makes required changes in kms-connection-details,
kms-config yamls.

Signed-off-by: Rakshith R <rar@redhat.com>

examples/kms/vault/csi-kms-connection-details.yaml

@@ -35,6 +35,17 @@ data:
     {
       "encryptionKMSType": "metadata"
     }
+  user-ns-secrets-metadata-test: |-
+    {
+      "encryptionKMSType": "metadata",
+      "secretName": "storage-encryption-secret",
+      "secretNamespace": "default"
+    }
+  user-secrets-metadata-test: |-
+    {
+      "encryptionKMSType": "metadata",
+      "secretName": "storage-encryption-secret"
+    }
   aws-metadata-test: |-
     {
       "KMS_PROVIDER": "aws-metadata",

examples/kms/vault/kms-config.yaml

@@ -33,6 +33,15 @@ data:
       },
       "secrets-metadata-test": {
           "encryptionKMSType": "metadata"
+      },
+      "user-ns-secrets-metadata-test": {
+        "encryptionKMSType": "metadata",
+        "secretName": "storage-encryption-secret",
+        "secretNamespace": "default"
+      },
+      "user-secrets-metadata-test": {
+        "encryptionKMSType": "metadata",
+        "secretName": "storage-encryption-secret"
       }
     }
 metadata:

examples/kms/vault/user-secret.yaml

@@ -0,0 +1,11 @@
+---
+# This is the user secret containing encryptionPasspharse that can be
+# created in a Kubernetes Namespace for encrypting PVCs with the
+# "user-ns-secrets-metadata-test" or "user-secrets-metadata-test"
+# encryptionKMSID.
+apiVersion: v1
+kind: Secret
+metadata:
+  name: storage-encryption-secret
+stringData:
+  encryptionPassphrase: test-encryption