Add proxy_domains to config/config example

config/config.example.yml

@@ -97,6 +97,22 @@ db:
 ##
 domain:
 
+##
+## A list of domains where external proxy servers. This is used
+## to build the urls used for proxing videos.
+## When none is set invidious will be used for proxiying.
+## This generally only needs to be set for bigger instances,
+## a example proxy url would be like ['proxy.example.com'].
+## Using a list urls might look like this:
+## ['proxy-eu1.example.com','proxy-eu2.example.com']
+## Invidious would then choose at random which request gets one
+## of the proxy servers
+##
+## Accepted values: a list of fully qualified domain names (FQDN)
+## Default: [""]
+##
+proxy_domains: [""]
+
 ##
 ## Tell Invidious that it is behind a proxy that provides only
 ## HTTPS, so all links must use the https:// scheme. This

src/invidious/config.cr

@@ -88,6 +88,8 @@ class Config
   property hmac_key : String?
   # Domain to be used for links to resources on the site where an absolute URL is required
   property domain : String?
+  # Domain list of external proxy servers to be used, when multiple are set they will be randomly choosen
+  property proxy_domains : Array(String) = [] of String
   # Subscribe to channels using PubSubHubbub (requires domain, hmac_key)
   property use_pubsub_feeds : Bool | Int32 = false
   property popular_enabled : Bool = true