Adding header settings to HTTP health check

[samber]

Hi guys,

I'm writing this issue to discuss about an improvement.

Today, Consul is able to perform an HTTP health-check with a defined route (ex: /health).
It would be awesome to send a request with custom fields set in the HTTP header.
In this way, it should be possible to test:

• the routing rules of a reverse proxy with the field Host,
• an authentication with the field Authorization or custom
• or even test CORS with Origin.

To illustrate:
adding: req.Header.Set("Host", "foo.bar.example.com")
here: https://github.com/hashicorp/consul/blob/master/command/agent/check.go#L415

It can be done with scripting+curl, but using the http health check would be the best practice.

Rgds

[slackpad]

Hi @samber thanks for opening an issue, I'm going to close this as a duplicate of #1184.