diff --git a/app/config/cluster.json.mustache b/app/config/cluster.json.mustache
index d61b4e47..dbb8fa69 100644
--- a/app/config/cluster.json.mustache
+++ b/app/config/cluster.json.mustache
@@ -11,7 +11,7 @@
                 "role": "master",
                 "container": {
                     "type": "kvm",
-                    "image": "img-tpwxmn8b",
+                    "image": "img-9e0caoto",
                     "zone": "sh1a"
                 },
                 "instance_class": {{cluster.master.instance_class}},
@@ -102,7 +102,7 @@
                 "role": "node_perf",
                 "container": {
                     "type": "kvm",
-                    "image": "img-tpwxmn8b",
+                    "image": "img-9e0caoto",
                     "zone": "sh1a"
                 },
                 "instance_class": 0,
@@ -171,7 +171,7 @@
                 "role": "node_super_perf",
                 "container": {
                     "type": "kvm",
-                    "image": "img-tpwxmn8b",
+                    "image": "img-9e0caoto",
                     "zone": "sh1a"
                 },
                 "instance_class": 1,
@@ -240,7 +240,7 @@
                 "role": "client",
                 "container": {
                     "type": "kvm",
-                    "image": "img-tpwxmn8b",
+                    "image": "img-9e0caoto",
                     "zone": "sh1a"
                 },
                 "instance_class": {{cluster.client.instance_class}},
diff --git a/app/config/config.json b/app/config/config.json
index 5fab3e49..51507a7c 100644
--- a/app/config/config.json
+++ b/app/config/config.json
@@ -500,7 +500,7 @@
           "type": "string",
           "default": "",
           "changeable": true,
-          "pattern": "^(\/(\\w+\/?)+(\\w+))$|^$",
+          "pattern": "^(\/((\\w|\\-|\\.)+\/?)+((\\w|\\-|\\.)+))$|^$",
           "required": "no"
         },
         {