fix: try to make podman keep source IP, instead of changing it to local

This requires rebuilding pod.

Thanks to @nhlpl for reporting problem with all logins seen from
the same IP.

Also see: containers/podman#5138 (comment)

nobbic

@@ -178,6 +178,7 @@ function buildPod () {
 
 	podman pod create -n "$APP_NAME" $podOptions \
 		$PODMAN_ARG_LABEL \
+		--network=slirp4netns:port_handler=slirp4netns\
 		--add-host=localhost:127.0.0.1 --hostname="$APP_NAME" || return $?
 
 	if [ -n "$APP_ADD_MONGODB" ] ; then