Nginx INIT启动脚本

nginx服务自启动脚本

• CentOS/RHEL 5、6系列

脚本内容

#!/bin/bash
#
# nginx - this script starts and stops the nginx daemin
#
# chkconfig:   - 85 15
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse
#               proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /usr/local/nginx/conf/nginx.conf
# pidfile:     /usr/local/nginx/logs/nginx.pid

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"
lockfile=/var/lock/subsys/nginx
start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    echo -n $"Starting $prog: "
    daemon $nginx -c $NGINX_CONF_FILE
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
    killproc $prog -QUIT
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}

restart() {
    configtest || return $?
    stop
    start
}

reload() {
    configtest || return $?
    echo -n $"Reloading $prog: "
    killproc $nginx -HUP
    RETVAL=$?
    echo
}

force_reload() {
    restart
}

configtest() {
  $nginx -t -c $NGINX_CONF_FILE
}

rh_status() {
    status $prog
}

rh_status_q() {
    rh_status >/dev/null 2>&1
}

case "$1" in
    start)
        rh_status_q && exit 0
        $1
        ;;
    stop)
        rh_status_q || exit 0
        $1
        ;;
    restart|configtest)
        $1
        ;;
    reload)
        rh_status_q || exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
            ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
        exit 2
esac

在Centos7 或者 相应的Ubuntu版本中添加如下内容

vim /lib/systemd/system/nginx.service   
[Unit]  
Description=nginx  
After=network.target  

[Service]  
Type=forking  
ExecStart=/etc/init.d/nginx start  
ExecReload=/etc/init.d/nginx restart  
ExecStop=/etc/init.d/nginx  stop  
PrivateTmp=true  

[Install]  
WantedBy=multi-user.target

# Stop dance for nginx
# =======================
#
# ExecStop sends SIGSTOP (graceful stop) to the nginx process.
# If, after 5s (--retry QUIT/5) nginx is still running, systemd takes control
# and sends SIGTERM (fast shutdown) to the main process.
# After another 5s (TimeoutStopSec=5), and if nginx is alive, systemd sends
# SIGKILL to all the remaining processes in the process group (KillMode=mixed).
#
# nginx signals reference doc:
# http://nginx.org/en/docs/control.html
#
[Unit]
Description=A high performance web server and a reverse proxy server
After=network.target

[Service]
Type=forking
PIDFile=/usr/local/nginx/logs/nginx.pid
ExecStartPre=/usr/local/nginx/sbin/nginx -t -q -g 'daemon on; master_process on;'
ExecStart=/usr/local/nginx/sbin/nginx -g 'daemon on; master_process on;'
ExecReload=/usr/local/nginx/sbin/nginx -g 'daemon on; master_process on;' -s reload
ExecStop=-/sbin/start-stop-daemon --quiet --stop --retry QUIT/5 --pidfile /usr/local/nginx/logs/nginx.pid
TimeoutStopSec=5
KillMode=mixed

[Install]
WantedBy=multi-user.target

• Ubuntu

#! /bin/sh
### BEGIN INIT INFO
# Provides:          nginx
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: nginx init.d dash script for Ubuntu or other *nix.
# Description:       nginx init.d dash script for Ubuntu or other *nix.
### END INIT INFO        
#------------------------------------------------------------------------------
# nginx - this Debian Almquist shell (dash) script, starts and stops the nginx
#         daemon for Ubuntu and other *nix releases.
#
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
#               proxy and IMAP/POP3 proxy server.  This \
#               script will manage the initiation of the \
#               server and it's process state.
#
# processname: nginx
# config:      /usr/local/nginx/conf/nginx.conf
# pidfile:     /usr/local/nginx/logs/nginx.pid
# Provides:    nginx
#
# Author:  Jason Giedymin
#          <jason.giedymin AT gmail.com>.
#
# Version: 3.5.1 11-NOV-2013 jason.giedymin AT gmail.com
# Notes: nginx init.d dash script for Ubuntu.
# Tested with: Ubuntu 13.10, nginx-1.4.3
#
# This script's project home is:
#   [url]http://github.com/JasonGiedymin/nginx-init-ubuntu[/url]
#
#------------------------------------------------------------------------------
#                               MIT X11 License
#------------------------------------------------------------------------------
#
# Copyright (c) 2008-2013 Jason Giedymin, [url]http://jasongiedymin.com[/url]
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
#                               Functions
#------------------------------------------------------------------------------

LSB_FUNC=/lib/lsb/init-functions
# Test that init functions exists
test -r $LSB_FUNC || {
    echo "$0: Cannot find $LSB_FUNC! Script exiting." 1>&2
    exit 5
}

. $LSB_FUNC
#------------------------------------------------------------------------------
#                               Consts
#------------------------------------------------------------------------------
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/local/nginx/sbin/nginx

PS="nginx"
PIDNAME="nginx"                     #lets you do $PS-slave
PIDFILE=$PIDNAME.pid                #pid file
PIDSPATH=/usr/local/nginx/logs      #default pid location, you should change it
DESCRIPTION="Nginx Server..."
RUNAS=root                          #user to run as
SCRIPT_OK=0                         #ala error codes
SCRIPT_ERROR=1                      #ala error codes
TRUE=1                              #boolean
FALSE=0                             #boolean

lockfile=/var/lock/subsys/nginx
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"
#------------------------------------------------------------------------------
#                               Simple Tests
#------------------------------------------------------------------------------

# Test if nginx is a file and executable
test -x $DAEMON || {
    echo "$0: You don't have permissions to execute nginx." 1>&2
    exit 4
}

# Include nginx defaults if available
if [ -f /etc/default/nginx ]; then
    . /etc/default/nginx
fi

#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-fpm
wait_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
        try=`expr $try + 1`
        sleep 1
    done
}

status(){
    isRunning
    isAlive=$?

    if [ "${isAlive}" -eq $TRUE ]; then
        log_warning_msg "$DESCRIPTION found running with processes:  `pidof $PS`"
        rc=0
    else
        log_warning_msg "$DESCRIPTION is NOT running."
        rc=3
    fi
    return
}

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
        rc=0
     else
        start-stop-daemon --start --quiet --chuid \
        $RUNAS --pidfile $PIDSPATH/$PIDFILE --exec $DAEMON \
        -- -c $NGINX_CONF_FILE
        setFilePerms
        log_end_msg $SCRIPT_OK
        rc=0
    fi

    return
}

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
            rc=0 # lsb states 1, but under status it is 2 (which is more prescriptive). Deferring to standard.
        else
            removePIDFile
            log_end_msg $SCRIPT_OK
            rc=0
        fi
    else
        log_end_msg $SCRIPT_ERROR
        rc=7
    fi

    return
}

reload() {
    configtest || return $?
    log_daemon_msg "Reloading (via HUP) $DESCRIPTION"
    isRunning
    if [ $? -eq $TRUE ]; then
        kill -HUP `cat $PIDSPATH/$PIDFILE`
        log_end_msg $SCRIPT_OK
        rc=0
    else
        log_end_msg $SCRIPT_ERROR
        rc=7
    fi
    return
}

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
            rc=0
        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
            rc=0
        fi
    else
        log_end_msg $SCRIPT_ERROR
        rc=7
    fi
    return
}

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
    rc=0
}

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
    rc=0
}

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
}


action="$1"
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart|force-reload)
        stop
        # if [ $rc -ne 0 ]; then
        #     script_exit
        # fi
        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 3
        ;;
esac
exit $rc