adding gitea backend to haproxy

HAPROXY/haproxy.cfg

@@ -36,6 +36,7 @@ frontend https
     acl is_public           hdr(host)   -i mshossa.de
     acl is_stats            hdr(host)   -i stats.mshossa.de
     acl is_seafile          hdr(host)   -i ftp.mshossa.de
+    acl is_gitea            hdr(host)   -i gitea.mrhossa.de
     acl is_seafile_login    path_beg    /accounts/login /api2/auth-token
 
     stick-table type ip size 100k expire 60s store http_req_rate(60s)
@@ -52,6 +53,7 @@ frontend https
 
     use_backend stats            if is_stats
     use_backend seafile          if is_seafile
+    use_backend web_gitea        if is_gitea
 
     default_backend seafile
 
@@ -62,6 +64,9 @@ backend seafile
     timeout server 300s
     server seafile 172.30.0.12:80 check
 
+backend web_gitea
+    server gitea 172.30.0.13:3000 check
+
 backend stats
     stats enable
     stats uri /