Sharing Hashicorp Vault and Consul UI under one roof behind NGINX proxy_pass

### Overview of the Issue

It might come in handy sometimes to share both Vault and Consul UI under the same roof behind nginx.

### Describe the solution

This is the solution we ended up implementing and it worked well...
A single configuration location file for nginx to hide on the same host
consul and vault in `/ui//`

### Consul Version

Consul version 1.10.3
Vault version 1.8.5

### Solution

```nginx
location /ui {
if ($http_referer ~ (/ui/vault)) {
proxy_pass http://127.0.0.1:8200;
}
if ($http_referer ~ (/ui/consul)) {
proxy_pass http://127.0.0.1:8500;
}
}

location /v1 {
if ($http_referer ~ (/ui/vault)) {
proxy_pass http://127.0.0.1:8200;
}
if ($http_referer ~ (/ui/consul)) {
proxy_pass http://127.0.0.1:8500;
}
}

location /ui/vault/ {
proxy_pass http://127.0.0.1:8200/ui/;
}

location /ui/consul {
proxy_pass http://127.0.0.1:8500;
}
```

### Additionnal Notes

- Make sure to set `-ui-content-path=/ui/consul/` when starting consul.