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Enhance API, REST, ping documentation.

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Ludovic Fernandez 2018-03-01 08:42:03 +01:00 • committed by Traefiker Bot
parent 49a9e2a9e0
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docs/user-guide/examples.md
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@ -335,68 +335,3 @@ providersThrottleDuration = "5s"
[respondingTimeouts]
idleTimeout = "360s"
```
## Ping Health Check
The `/ping` health-check URL is enabled with the command-line `--ping` or config file option `[ping]`.
Thus, if you have a regular path for `/foo` and an entrypoint on `:80`, you would access them as follows:
* Regular path: `http://hostname:80/foo`
* Admin panel: `http://hostname:8080/`
* Ping URL: `http://hostname:8080/ping`
However, for security reasons, you may want to be able to expose the `/ping` health-check URL to outside health-checkers, e.g. an Internet service or cloud load-balancer, _without_ exposing your administration panel's port.
In many environments, the security staff may not _allow_ you to expose it.
You have two options:
* Enable `/ping` on a regular entry point
* Enable `/ping` on a dedicated port
### Enable ping health check on a regular entry point
To proxy `/ping` from a regular entry point to the administration one without exposing the panel, do the following:
```toml
defaultEntryPoints = ["http"]
[entryPoints]
[entryPoints.http]
address = ":80"
[ping]
entryPoint = "http"
```
The above link `ping` on the `http` entry point and then expose it on port `80`
### Enable ping health check on dedicated port
If you do not want to or cannot expose the health-check on a regular entry point - e.g. your security rules do not allow it, or you have a conflicting path - then you can enable health-check on its own entry point.
Use the following configuration:
```toml
defaultEntryPoints = ["http"]
[entryPoints]
[entryPoints.http]
address = ":80"
[entryPoints.ping]
address = ":8082"
[ping]
entryPoint = "ping"
```
The above is similar to the previous example, but instead of enabling `/ping` on the _default_ entry point, we enable it on a _dedicated_ entry point.
In the above example, you would access a regular path and health-check as follows:
* Regular path: `http://hostname:80/foo`
* Ping URL: `http://hostname:8082/ping`
Note the dedicated port `:8082` for `/ping`.
In the above example, it is _very_ important to create a named dedicated entry point, and do **not** include it in `defaultEntryPoints`.
Otherwise, you are likely to expose _all_ services via this entry point.