updated shipyard extension config

Author: ehazlett

.shipyard.extension

@@ -1,20 +1,24 @@
 {
- "name": "interlock",
- "image": "ehazlett/interlock",
- "version": "0.1",
- "author": "ehazlett",
- "description": "Application Router and Load Balancer",
- "url": "https://github.com/ehazlett/interlock",
- "config": {
-  "cpus": 0.1,
-  "memory": 32,
-  "ports": [
-    {
-     "proto": "tcp",
-     "port": 80,
-     "container_port": 8080
-    }
-   ],
-  "deploy_per_engine": false
- }
+  "name": "interlock",
+  "image": "ehazlett/interlock",
+  "version": "0.1",
+  "author": "ehazlett",
+  "description": "Application Router and Load Balancer",
+  "url": "https://github.com/ehazlett/interlock",
+  "config": {
+    "prompt_args": [
+      "-shipyard-url",
+      "-shipyard-service-key"
+    ],
+    "cpus": 0.1,
+    "memory": 32,
+    "ports": [
+      {
+        "proto": "tcp",
+        "port": 80,
+        "container_port": 8080
+      }
+     ],
+    "deploy_per_engine": false
+  }
 }