Added IPC spec to fields_schema.json

Signed-off-by: Lachlan Pease <[email protected]>

compose/config/fields_schema.json

@@ -59,6 +59,7 @@
         "external_links": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
         "hostname": {"type": "string"},
         "image": {"type": "string"},
+        "ipc": {"type": "string"},
         "labels": {"$ref": "#/definitions/list_or_dict"},
         "links": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},