add hostname only on MyDocker

root/usr/local/lib/wrapper_script.sh

@@ -7,8 +7,9 @@ chown -R   abc:abc       /config
 if [ "$2" ]; then
     export CUSTOM_USER=$1
     export PASSWORD=$2
+    
+    # Do this only on MyDocker where there are 2 IP adresses
+    echo "$(hostname -I | cut -f2 -d' ') $HOSTNAME" >> /etc/hosts
 fi
 
-echo "$(hostname -I | cut -f2 -d' ') $HOSTNAME" >> /etc/hosts
-
 exec /init