#!/usr/bin/env bash # # Ping until reply or MAX_TRIES. One try == 1s. # MAX_TRIES=60 LOGTAG="sunet_docker_ping_check" count=1 until ping -c1 $1 &> /dev/null do if [ $count -gt $MAX_TRIES ] then logger -t "$LOGTAG" "No response from $1 after $MAX_TRIES tries." exit 1 fi sleep 1 count=$[$count+1] done logger -t "$LOGTAG" "IP lookup of $1 succeeded after $count tries."