haproxy sigterm test

run-haproxy.sh

#!/bin/bash

OUTPUT=run-haproxy.log
echo writing log to $OUTPUT

run=0
while sleep 0.00001; do
  echo Run $(( ++run )): starting haproxy
  echo ---------------------------------------------------
  /usr/local/sbin/haproxy -W -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -S /run/haproxy-master.sock
  echo ---------------------------------------------------
  echo Run $(( run )): exited
done 2>&1 | perl -pe 'use POSIX strftime; use Time::HiRes gettimeofday;
                    $|=1;
                    select((select(STDERR), $| = 1)[0]);
                    ($s,$ms)=gettimeofday();
                    $ms=substr(q(000000) . $ms,-6);
                    print strftime "[%Y-%m-%d %H:%M:%S.$ms]", localtime($s)' > $OUTPUT

send-sigterm.sh

#!/bin/bash
set -e

function mainpid() {
  { cat /run/haproxy.pid || true ; } 2>/dev/null
}

cycles=0
sleep_prefix=0.0001

#while sleep "${sleep_prefix}${RANDOM}"; do
while true; do

  OLDPID=$(mainpid)

  if (( OLDPID > 0 )); then
    # echo "Stopping haproxy $OLDPID"
    kill "$OLDPID" || true
  fi

  k=0
  while true; do
    if (( ++k > 5000 )); then
      echo "-------------------------"
      echo "race hit: did not terminate quick enough"
      echo "cycle counter: $cycles"
      exit 1
    fi
    sleep "${sleep_prefix}${RANDOM}"
    PID=$(mainpid)
    if (( PID != OLDPID || PID == 0 )); then
      break
    else
      #echo "waiting"
      true
    fi
  done

  (( ++ cycles ))
  if (( cycles % 1000 == 0 )); then
    echo cycle counter: $(( cycles ))
  fi
done