Support for additional persistent docker volumes to be specified within appliance configuration

gns3server/handlers/api/compute/docker_handler.py

@@ -61,7 +61,8 @@ class DockerHandler:
                                                           console_http_port=request.json.get("console_http_port", 80),
                                                           console_http_path=request.json.get("console_http_path", "/"),
                                                           aux=request.json.get("aux"),
-                                                          extra_hosts=request.json.get("extra_hosts"))
+                                                          extra_hosts=request.json.get("extra_hosts"),
+                                                          extra_volumes=request.json.get("extra_volumes"))
         for name, value in request.json.items():
             if name != "node_id":
                 if hasattr(container, name) and getattr(container, name) != value:
@@ -316,7 +317,7 @@ class DockerHandler:
         props = [
             "name", "console", "aux", "console_type", "console_resolution",
             "console_http_port", "console_http_path", "start_command",
-            "environment", "adapters", "extra_hosts"
+            "environment", "adapters", "extra_hosts", "extra_volumes"
         ]
 
         changed = False