option to set bbb join host

config_sample.yaml

@@ -35,6 +35,8 @@ client:
     # do not make the text longer, not all html tags are supported
     # 'b', 'i', 'em', 'strong', 'a'
     text: 'Powered by <a href="https://www.plugnmeet.org" target="_blank">plugNmeet</a>'
+  # set host info so that BBB joining URL can be more accurate when behind LB
+  bbb_join_host: "http://localhost:3000"
 room_default_settings:
   max_duration: 0 # Duration in minutes. 0 = no limit
   max_participants: 0 # 0 = no limit

pkg/config/config.go

@@ -48,6 +48,7 @@ type ClientInfo struct {
 	PrometheusConf PrometheusConf `yaml:"prometheus"`
 	ProxyHeader    string         `yaml:"proxy_header"`
 	CopyrightConf  *CopyrightConf `yaml:"copyright_conf"`
+	BBBJoinHost    *string        `yaml:"bbb_join_host"`
 }
 
 type WebhookConf struct {

pkg/controllers/bbb.go

@@ -244,6 +244,10 @@ func HandleBBBJoin(c *fiber.Ctx) error {
 	}
 
 	ul := fmt.Sprintf("%s://%s/?access_token=%s", c.Protocol(), c.Hostname(), token)
+	if app.Client.BBBJoinHost != nil && *app.Client.BBBJoinHost != "" {
+		// use host name from config
+		ul = fmt.Sprintf("%s/?access_token=%s", *app.Client.BBBJoinHost, token)
+	}
 	if customDesign != nil && customDesign.String() != "" {
 		op := protojson.MarshalOptions{
 			EmitUnpopulated: false,