* skip containers with no network

docker-scripts/docker-iptables

@@ -9,11 +9,13 @@
 
 function replace_iptables() {
 	local CID
-
-	local SEDCMD=""
+	local SEDCMD
 	for CID in $(docker ps -q -a); do
 		local NAME=$(docker inspect --format '{{ .Name }}' $CID | awk '{ print substr($0, 2, length($0)-1) }')
 		local IP=$(docker inspect --format '{{ .NetworkSettings.IPAddress }}' $CID)
+		if [ -z "$IP" ]; then
+			continue
+		fi
 
 		SEDCMD="$SEDCMD -e s!$IP/32!${NAME}!g"
 	done