nixos/nginx: add upstreams examples

SuperSandro2000 · web-flow · commit de4b124a22bf · 2021-04-04T08:22:18.000+02:00
I am not fully sure if they are fully correct but they deployed the right syntax.
diff --git a/nixos/modules/services/web-servers/nginx/default.nix b/nixos/modules/services/web-servers/nginx/default.nix
@@ -662,6 +662,7 @@ in
                 Defines the address and other parameters of the upstream servers.
               '';
               default = {};
+              example = { "127.0.0.1:8000" = {}; };
             };
             extraConfig = mkOption {
               type = types.lines;
@@ -676,6 +677,13 @@ in
           Defines a group of servers to use as proxy target.
         '';
         default = {};
+        example = {
+          "backend_server" = {
+          servers = { "127.0.0.1:8000" = {}; };
+          extraConfig = ''
+            keepalive 16;
+          '';
+        };
       };
 
       virtualHosts = mkOption {
