add vaultwarden

HAPROXY/haproxy.cfg

@@ -51,12 +51,14 @@ frontend https
     acl is_stats            hdr(host)   -i stats.mrhossa.de
     acl is_jenkins          hdr(host)   -i jenkins.mrhossa.de
     acl is_flatnotes        hdr(host)   -i flatnotes.mrhossa.de
+    acl is_vaultwarden      hdr(host)   -i vaultwarden.mrhossa.de
 
     use_backend web_public       if is_public
     use_backend web_backend      if is_backend
     use_backend web_gitea        if is_gitea
     use_backend web_jenkins      if is_jenkins
     use_backend web_flatnotes    if is_flatnotes
+    use_backend web_vaultwarden  if is_vaultwarden
     use_backend stats            if is_stats
 
     default_backend web_public
@@ -82,6 +84,9 @@ backend web_flatnotes
     http-request auth realm "Geschützter Bereich" unless authenticated
     server flatnotes 152.53.159.169:8003 check
 
+backend web_vaultwarden
+    server vaultwarden 152.53.159.169:8004 check
+
 backend stats
     stats enable
     stats uri /