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docker-entrypoint.sh

#!/bin/sh -e

while true
do
  DATE=$(echo `date +%Y-%m-%d\ %T.%Z`)
  ID=$(od -x /dev/urandom | head -1 | awk '{OFS="-"; print $2$3,$4,$5,$6,$7$8$9}')
  SYSTEM_DATA=$(mpstat)
  SYSTEM_INFO=$(echo $SYSTEM_DATA | awk '{OFS=" "; print "OS="$1" AR="$5" CPU="$6") USR="$21" NICE="$22" SYS="$23\
                                          " IOWAIT="$24" IRQ="$25" SOFT="$26" STEAL="$27" GUEST="$28" IDLE="$29}')

  echo "$DATE $ID $SYSTEM_INFO"

  sleep $(echo $(($(shuf -i 1-200 -n 1)/100)).$(($(shuf -i 1-100 -n 1))))
done

exit 0