Graphite Integration Error - No Metrics Detected

[sanroll]

Hi, im use the Docker over CentOs 7, the install are ok and have access without problem, but when im try add a Graphite Check not work, not detect any metric from my Graphite.
I think the problem is the Docker no have access to my Graphite server, but i dont know what is the way for validate this.

Can you help me with that? Is possible the docker dont have ping or access to the server over the same network?

Thx.
BR