jvb: run it on the user defined network

jvb/rootfs/defaults/sip-communicator.properties

@@ -1,3 +1,5 @@
 org.jitsi.videobridge.AUTHORIZED_SOURCE_REGEXP=${JICOFO_AUTH_USER}@auth.${XMPP_DOMAIN}/.*
 org.jitsi.videobridge.TCP_HARVESTER_PORT=4443
 org.ice4j.ice.harvest.STUN_MAPPING_HARVESTER_ADDRESSES=${JVB_STUN_SERVERS}
+org.ice4j.ice.harvest.NAT_HARVESTER_LOCAL_ADDRESS=
+org.ice4j.ice.harvest.NAT_HARVESTER_PUBLIC_ADDRESS=

jvb/rootfs/etc/cont-init.d/10-config

@@ -13,3 +13,12 @@ if [[ ! -f /config/logging.properties ]]; then
     cp /defaults/logging.properties /config
 fi
 
+# Do this for every run, since the local IP may change!
+if [[ ! -z "$DOCKER_HOST_ADDRESS" ]]; then
+    LOCAL_ADDRESS=$(hostname -I | cut -d " " -f1)
+    sed -i \
+        -e "s,^org.ice4j.ice.harvest.NAT_HARVESTER_LOCAL_ADDRESS=.*,org.ice4j.ice.harvest.NAT_HARVESTER_LOCAL_ADDRESS=$LOCAL_ADDRESS," \
+        -e "s,^org.ice4j.ice.harvest.NAT_HARVESTER_PUBLIC_ADDRESS=.*,org.ice4j.ice.harvest.NAT_HARVESTER_PUBLIC_ADDRESS=$DOCKER_HOST_ADDRESS," \
+        /config/sip-communicator.properties
+fi
+