Allow use of socket for Datadog metrics #9738
Description
Welcome!
- Yes, I've searched similar issues on GitHub and didn't find any.
- Yes, I've searched similar issues on the Traefik community forum and didn't find any.
What did you expect to see?
Basically a copy of #5502, but this issue was exclusively for 1.7 and therefore closed. When using the DataDog agent on Kubernetes, you usually have one agent per host. But on Kubernetes you can't address them via localhost unless you are using the host network. That's why they added the possibility to send traces via a local socket that gets mounted by the agent and the service that should send traces.
At the moment Traefik only supports setting an IP for the DataDog agent, I want to be able to send the traces to it via a UNIX socket.