curl -i -X POST 'http://localhost:3080/v2/shutdown' -d '{}'
POST /v2/shutdown HTTP/1.1
{}
HTTP/1.1 201
Connection: close
Content-Length: 0
Content-Type: application/octet-stream
Date: Wed, 23 Oct 2019 13:44:47 GMT
Server: Python/3.6 GNS3/2.2.1dev1
X-Route: /v2/shutdown
