kube: clean up PersistentVolumeClaims

There's no difference as far as jsonnet is concerned, but it may confuse newbies, as Service and SimpleIngress use double colon for its top-level kube helpers. This also removes any ambiguity as to whether this is manifested in final JSON. So we can make that a convention.

Change-Id: I01ad4ea63f4d5d8ee6e5d41c79637ba186548c6f
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1803
Reviewed-by: q3k <q3k@hackerspace.pl>
diff --git a/personal/radex/wordpress/prod.jsonnet b/personal/radex/wordpress/prod.jsonnet
index 55f43be..47e71e7 100644
--- a/personal/radex/wordpress/prod.jsonnet
+++ b/personal/radex/wordpress/prod.jsonnet
@@ -63,8 +63,8 @@
         local mysql = self,
 
         volume: top.ns.Contain(kube.PersistentVolumeClaim("wordpress-mysql")) {
-            storage: cfg.storageSize,
-            storageClass: cfg.storageClassName,
+            storage:: cfg.storageSize,
+            storageClass:: cfg.storageClassName,
         },
 
         deployment: top.ns.Contain(kube.Deployment("wordpress-mysql")) {