ip in docker-utils-0.1.37

- old
+ new

@@ -7,16 +7,18 @@
 
 container_name="$1"; shift
 
 container_ip_addr=""
 
+sleep_interval='0.1'
 if [ "${mode}" = "wait" ]; then
   while :; do
     container_ip_addr=$(command docker inspect --format '{{.NetworkSettings.IPAddress}}' "${container_name}" 2>/dev/null)
     if [ -n "${container_ip_addr}" ]; then
       break
     fi
-    sleep 0.1
+    sleep "${sleep_interval}"
+    sleep_interval=$(echo "((${sleep_interval} * 2) % 10) + 0.1" | bc)
   done
 else
   container_ip_addr=$(command docker inspect --format '{{.NetworkSettings.IPAddress}}' "${container_name}" 2>/dev/null)
 fi
 