*: 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/matrix.libsonnet b/app/matrix/lib/matrix.libsonnet
index 2b95345..b8a21f9 100644
--- a/app/matrix/lib/matrix.libsonnet
+++ b/app/matrix/lib/matrix.libsonnet
@@ -97,15 +97,8 @@
 
     dataVolume: kube.PersistentVolumeClaim("synapse-data-waw3") {
         metadata+: app.metadata("synapse-data"),
-        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 synapseConfigMap).
@@ -266,15 +259,15 @@
             // Standard nginx.conf, made to work when running as unprivileged user.
             "nginx.conf": |||
                 worker_processes  auto;
-                
+
                 error_log  /tmp/nginx_error.log warn;
                 pid        /tmp/nginx.pid;
-                
+
                 events {
                     worker_connections  1024;
                 }
-                
-                
+
+
                 http {
                     client_body_temp_path /tmp/nginx_client_temp;
                     proxy_temp_path /tmp/nginx_proxy_temp;
@@ -290,16 +283,16 @@
                     access_log  /tmp/nginx_access.log  main;
                     sendfile        on;
                     keepalive_timeout  65;
-                    
+
                     server {
                         listen       8080;
                         server_name  localhost;
-                    
+
                         location / {
                             root   /usr/share/nginx/html;
                             index  index.html index.htm;
                         }
-                    
+
                         error_page   500 502 503 504  /50x.html;
                         location = /50x.html {
                             root   /usr/share/nginx/html;