Add cached ceph FS mount point in /cache

m/module/ceph.nix

@@ -21,4 +21,16 @@
       "secretfile=${config.age.secrets.cephUser.path}"
     ];
   };
+
+  services.cachefilesd.enable = true;
+
+  fileSystems."/cache" = {
+    fsType = "ceph";
+    device = "user@9c8d06e0-485f-4aaf-b16b-06d6daf1232b.cephfs=/";
+    options = [
+      "fsc"
+      "mon_addr=10.0.40.40"
+      "secretfile=${config.age.secrets.cephUser.path}"
+    ];
+  };
 }