Avoid to block if ecole-dc is unreachable

#!/bin/bash

max=3

retries=0

# Ensure ecole-dc is reachable before mounts

while ! ping -c 1 ecole-dc  > /dev/null 2>&1

do

    echo "Cannot reach ecole-dc, waiting 10 sec"

    sleep 10

    if [ $retries -ge $max ]

    then

        exit

    fi

    retries=$(($retries+1))

    echo "Cannot reach ecole-dc, waiting 5 sec"

    sleep 5

done

#[ `grep -c '^//ecole-dc/' /etc/mtab` -gt 0 ] && exit 0