feat(whiteboard) add builtin whiteboard integration

web/rootfs/defaults/meet.conf

@@ -9,6 +9,7 @@
 {{ $XMPP_DOMAIN := .Env.XMPP_DOMAIN | default "meet.jitsi" -}}
 {{ $XMPP_BOSH_URL_BASE := .Env.XMPP_BOSH_URL_BASE | default "http://xmpp.meet.jitsi:5280" -}}
 {{ $CORS_HEADER_ACCESS_CONTROL_ALLOW_ORIGIN := .Env.CORS_HEADER_ACCESS_CONTROL_ALLOW_ORIGIN | default "*" }}
+{{ $WHITEBOARD_ENABLED := .Env.WHITEBOARD_ENABLED | default "false" | toBool -}}
 
 server_name _;
 
@@ -134,6 +135,20 @@ location ^~ /etherpad/ {
 }
 {{ end }}
 
+{{ if $WHITEBOARD_ENABLED }}
+# whiteboard (excalidraw-backend)
+location = /socket.io/ {
+    tcp_nodelay on;
+
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection "upgrade";
+    proxy_set_header Host $http_host;
+
+    proxy_pass http://whiteboard.meet.jitsi/socket.io/?$args;
+}
+{{ end }}
+
 location ~ ^/([^/?&:'"]+)$ {
     try_files $uri @root_path;
 }

web/rootfs/defaults/settings-config.js

@@ -554,7 +554,11 @@ config.e2eping.maxMessagePerSecond = {{ .Env.E2EPING_MAX_MESSAGE_PER_SECOND }};
 // Settings for the Excalidraw whiteboard integration.
 config.whiteboard = {
     enabled: {{ $WHITEBOARD_ENABLED }},
-    collabServerBaseUrl: '{{ $WHITEBOARD_COLLAB_SERVER_PUBLIC_URL }}'
+{{ if .Env.WHITEBOARD_COLLAB_SERVER_PUBLIC_URL -}}
+    collabServerBaseUrl: '{{ $WHITEBOARD_COLLAB_SERVER_PUBLIC_URL }}';
+{{ else }}
+    collabServerBaseUrl: '{{ $PUBLIC_URL }}'
+{{ end }}
 };
 
 // Testing

whiteboard.yml

@@ -0,0 +1,12 @@
+version: '3.5'
+
+services:
+  whiteboard:
+        image: jitsi/excalidraw-backend:${JITSI_IMAGE_VERSION:-unstable}
+        restart: ${RESTART_POLICY:-unless-stopped}
+        depends_on:
+            - web
+        networks:
+            meet.jitsi:
+              aliases:
+                    - whiteboard.meet.jitsi