UBUNTU云服务器可以使用的nginx开机自动启动脚本
有时需要在服务器开机时运行一些脚本，nginx开机自动运行是最常见的开机脚本，万维景盛工程师将以下脚本分享给大家，工程师亲测可用。万维景盛可以折上折代购阿里云服务器等全线产品，有需要的朋友欢迎联系我司客服。
#! /bin/bash. /lib/lsb/init-functions
#------------------------------------------------------------------------------# Consts#------------------------------------------------------------------------------PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/sbin/DAEMON=/usr/sbin/nginx
PS="nginx"PIDNAME="nginx" #lets you do $PS-slavePIDFILE=$PIDNAME.pid #pid filePIDSPATH=/var/run
DESCRIPTION="Nginx Server version 1.6.2"
RUNAS=root #user to run as
SCRIPT_OK=0 #ala error codesSCRIPT_ERROR=1 #ala error codesTRUE=1 #booleanFALSE=0 #boolean
lockfile=/var/lock/subsys/nginx
NGINX_CONF_FILE="/etc/nginx/nginx.conf"
#------------------------------------------------------------------------------# Simple Tests#------------------------------------------------------------------------------
#test if nginx is a file and executabletest -x $DAEMON || exit 0
# Include nginx defaults if availableif [ -f /etc/default/nginx ] ; then
. /etc/default/nginxfi
#set exit condition#set -e
#------------------------------------------------------------------------------# Functions#------------------------------------------------------------------------------
setFilePerms(){
if [ -f $PIDSPATH/$PIDFILE ]; then
chmod 400 $PIDSPATH/$PIDFILE fi}
configtest() {
$DAEMON -t -c $NGINX_CONF_FILE}
getPSCount() {
return `pgrep -f $PS | wc -l`}
isRunning() {
if [ $1 ]; then
pidof_daemon $1
PID=$?
if [ $PID -gt 0 ]; then
return 1
else
return 0
fi
else
pidof_daemon
PID=$?
if [ $PID -gt 0 ]; then
return 1
else
return 0
fi
fi}
#courtesy of php-fpmwait_for_pid () {
try=0
while test $try -lt 35 ; do
case "$1" in
'created')
if [ -f "$2" ] ; then
try=''
break
fi
;;
'removed')
if [ ! -f "$2" ] ; then
try=''
break
fi
;;
esac
#echo -n .
try=`expr $try + 1`
sleep 1
done}
status(){
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
echo "$PIDNAME found running with processes: `pidof $PS`"
else
echo "$PIDNAME is NOT running."
fi
}
removePIDFile(){
if [ $1 ]; then
if [ -f $1 ]; then
rm -f $1 fi
else
#Do default removal
if [ -f $PIDSPATH/$PIDFILE ]; then
rm -f $PIDSPATH/$PIDFILE fi
fi}
start() {
log_daemon_msg "Starting $DESCRIPTION"
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
log_end_msg $SCRIPT_ERROR else
start-stop-daemon --start --quiet --chuid $RUNAS --pidfile $PIDSPATH/$PIDFILE --exec $DAEMON
-- -c $NGINX_CONF_FILE
setFilePerms
log_end_msg $SCRIPT_OK fi}
stop() {
log_daemon_msg "Stopping $DESCRIPTION"
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
start-stop-daemon --stop --quiet --pidfile $PIDSPATH/$PIDFILE
wait_for_pid 'removed' $PIDSPATH/$PIDFILE
if [ -n "$try" ] ; then
log_end_msg $SCRIPT_ERROR else
removePIDFile
log_end_msg $SCRIPT_OK fi
else
log_end_msg $SCRIPT_ERROR fi}
reload() {
configtest || return $?
log_daemon_msg "Reloading (via HUP) $DESCRIPTION"
isRunning if [ $? -eq $TRUE ]; then
`killall -HUP $PS` #to be safe
log_end_msg $SCRIPT_OK else
log_end_msg $SCRIPT_ERROR fi}
quietupgrade() {
log_daemon_msg "Peforming Quiet Upgrade $DESCRIPTION"
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
kill -USR2 `cat $PIDSPATH/$PIDFILE`
kill -WINCH `cat $PIDSPATH/$PIDFILE.oldbin`
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`
wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin
removePIDFile $PIDSPATH/$PIDFILE.oldbin
log_end_msg $SCRIPT_OK else
log_end_msg $SCRIPT_ERROR
log_daemon_msg "ERROR! Reverting back to original $DESCRIPTION"
kill -HUP `cat $PIDSPATH/$PIDFILE`
kill -TERM `cat $PIDSPATH/$PIDFILE.oldbin`
kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`
wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin
removePIDFile $PIDSPATH/$PIDFILE.oldbin
log_end_msg $SCRIPT_ok fi
else
log_end_msg $SCRIPT_ERROR fi}
terminate() {
log_daemon_msg "Force terminating (via KILL) $DESCRIPTION"
PIDS=`pidof $PS` || true
[ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`
for i in $PIDS; do
if [ "$i" = "$PIDS2" ]; then
kill $i
wait_for_pid 'removed' $PIDSPATH/$PIDFILE
removePIDFile fi
done
log_end_msg $SCRIPT_OK}
destroy() {
log_daemon_msg "Force terminating and may include self (via KILLALL) $DESCRIPTION"
killall $PS -q >> /dev/null 2>&1
log_end_msg $SCRIPT_OK}
pidof_daemon() {
PIDS=`pidof $PS` || true
[ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`
for i in $PIDS; do
if [ "$i" = "$PIDS2" ]; then
return 1
fi
done
return 0}
case "$1" in
start)
start ;;
stop)
stop ;;
restart|force-reload)
stop
sleep 1
start ;;
reload)
$1 ;;
status)
status ;;
configtest)
$1 ;;
quietupgrade)
$1 ;;
terminate)
$1 ;;
destroy)
$1 ;;
*)
FULLPATH=/etc/init.d/$PS
echo "Usage: $FULLPATH {start|stop|restart|force-reload|status|configtest|quietupgrade|terminate|destroy}"
echo " The 'destroy' command should only be used as a last resort."
exit 1
;;esac
exit 0如果你用windows下编辑器编辑的此文件，需要使用dos2unix /etc/init.d/nginx来修改此脚本的换行符
还需要给此脚本执行权限
chmod +x /etc/init.d/nginx
最后配置开机自动加载启动脚本：
update-rc.d –f nginx defaults
如果要取消开机启动可以这样
update-rc.d -f nginx remove
备注：rcx.d目录下指向启动脚本的符号链接是由K或S+数字+服务名 所组成，中间这个数字十分重要，系统启动时按照这个数字递增执行所有S开头的脚本，系统关闭时按照这个数字递减执行所有K开头的脚本。
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