#!/bin/sh

[ ! -f /run/nginx.pid ] && exit 1

echo "Start new nginx master..."

/bin/systemctl kill --signal=SIGUSR2 nginx.service

sleep 5

[ ! -f /run/nginx.pid.oldbin ] && sleep 10

if [ ! -f /run/nginx.pid.oldbin ]; then

    echo "Failed to start new nginx master."

    exit 1

fi

echo "Stop old nginx master gracefully..."

oldpid=`/usr/bin/cat /run/nginx.pid.oldbin 2>/dev/null`

/bin/kill -s QUIT $oldpid 2>/dev/null

sleep 5

[ -f /run/nginx.pid.oldbin ] && sleep 10

if [ -f /run/nginx.pid.oldbin ]; then

    echo "Failed to stop old nginx master."

    exit 1

fi