*: Simplify kube.PersistentVolumeClaims

Change-Id: I0a3e44de9f1c4db146fd1e493741f5fe381da3ae
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1768
Reviewed-by: q3k <q3k@hackerspace.pl>
diff --git a/app/matrix/lib/synapse.libsonnet b/app/matrix/lib/synapse.libsonnet
index 7b45308..324b2f2 100644
--- a/app/matrix/lib/synapse.libsonnet
+++ b/app/matrix/lib/synapse.libsonnet
@@ -31,15 +31,8 @@
     appservices:: error "appservices need to be provided",
 
     dataVolume: app.ns.Contain(kube.PersistentVolumeClaim("synapse-data-waw3")) {
-        spec+: {
-            storageClassName: cfg.storageClassName,
-            accessModes: [ "ReadWriteOnce" ],
-            resources: {
-                requests: {
-                    storage: "50Gi",
-                },
-            },
-        },
+        storage: "50Gi",
+        storageClass: cfg.storageClassName,
     },
 
     // homeserver.yaml that will be used to run synapse (in configMap).