Configure postgres recipes for VMs and zerotier access

* Remove encfs (using encrypted volumes instead)
* Allow access without TLS from zerotier network

nodes/postgres-2.json

@@ -12,11 +12,13 @@
     "hostname": "postgres-2",
     "ipaddress": "192.168.122.244",
     "roles": [
-
+      "postgresql_replica"
     ],
     "recipes": [
       "kosmos-base",
       "kosmos-base::default",
+      "kosmos-postgresql::replica",
+      "kosmos-postgresql::firewall",
       "apt::default",
       "timezone_iii::default",
       "timezone_iii::debian",
@@ -47,6 +49,7 @@
     }
   },
   "run_list": [
-    "recipe[kosmos-base]"
+    "recipe[kosmos-base]",
+    "role[postgresql_replica]"
   ]
 }