web,jvb: add ability to disable web sockets for colibri

The fallback is to use SCTP datachannels. This is not recomended.

web/rootfs/defaults/meet.conf

@@ -1,3 +1,4 @@
+{{ $ENABLE_COLIBRI_WEBSOCKET := .Env.ENABLE_COLIBRI_WEBSOCKET | default "1" | toBool }}
 {{ $ENABLE_XMPP_WEBSOCKET := .Env.ENABLE_XMPP_WEBSOCKET | default "1" | toBool }}
 
 server_name _;
@@ -36,6 +37,7 @@ location ~ ^/(libs|css|static|images|fonts|lang|sounds|connection_optimization|.
     alias /usr/share/jitsi-meet/$1/$2;
 }
 
+{{ if $ENABLE_COLIBRI_WEBSOCKET }}
 # colibri (JVB) websockets
 location ~ ^/colibri-ws/([a-zA-Z0-9-\.]+)/(.*) {
     proxy_pass http://$1:9090/colibri-ws/$1/$2$is_args$args;
@@ -44,6 +46,7 @@ location ~ ^/colibri-ws/([a-zA-Z0-9-\.]+)/(.*) {
     proxy_set_header Connection "upgrade";
     tcp_nodelay on;
 }
+{{ end }}
 
 # BOSH
 location = /http-bind {