美文网首页互联网开发手记程序员今日看点
nginx基本使用系列(二)_ubuntu14.04下源码安装配

nginx基本使用系列(二)_ubuntu14.04下源码安装配

作者: YONGSSU的技术站点 | 来源:发表于2017-01-08 15:28 被阅读52次

    上文中利用了

    sudo ./configure --prefix=/usr/local/nginx
    

    来编译安装nginx源码包,这样安装所有的nginx源码会被安装在/usr/local/nginx文件下.每次启动都需要通过/user/local/nginx/sbin/nginx来启动,参考通过Ubuntu下通过apt-get安装,会配置自启动脚本,我们也在通过源码包安装的情况下,配置自己的自启动脚本.

    配置nginx开机服务

    默认这么安装好以后每次检查配置、重启之类的操作略麻烦,所以我们模仿 Ubuntu 14.04 官方源,给系统设置个 nginx 服务,方便我们检查配置、启动重启关闭 Nginx 以及开机自动启动 Nginx.

    sudo vim /etc/init.d/nginx
    

    插入如下内容:

    #!/bin/sh
    ### BEGIN INIT INFO
    # Provides:       nginx
    # Required-Start:    $local_fs $remote_fs $network $syslog $named
    # Required-Stop:     $local_fs $remote_fs $network $syslog $named
    # Default-Start:     2 3 4 5
    # Default-Stop:      0 1 6
    # Short-Description: starts the nginx web server
    # Description:       starts nginx using start-stop-daemon
    ### END INIT INFO
    
    PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
    ##### nginx启动脚本
    #####DAEMON=/usr/sbin/nginx
    DAEMON=/usr/local/nginx/sbin/nginx
    NAME=nginx
    DESC=nginx
    # Include nginx defaults if available
    if [ -r /etc/default/nginx ]; then
            . /etc/default/nginx
    fi
    test -x $DAEMON || exit 0
    . /lib/init/vars.sh
    . /lib/lsb/init-functions
    # Try to extract nginx pidfile
    ####修改配置文件目录
    ####PID=$(cat /etc/nginx/nginx.conf | grep -Ev '^\s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1)
    PID=$(cat /usr/local/nginx/conf/nginx.conf | grep -Ev '^\s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1)
    
    ##### -z str1:当串的长度为0时为真(空串)
    if [ -z "$PID" ]
    then
            PID=/run/nginx.pid
    fi
    # Check if the ULIMIT is set in /etc/default/nginx
    
    #### -n str1:当串的长度大于0时为真(串非空) 
    if [ -n "$ULIMIT" ]; then
            # Set the ulimits
            ulimit $ULIMIT
    fi
    
    #
    # Function that starts the daemon/service
    #
    do_start()
    {
            # Return
            #   0 if daemon has been started
            #   1 if daemon was already running
            #   2 if daemon could not be started
            start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null \
                    || return 1
            start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- \
                    $DAEMON_OPTS 2>/dev/null \
                    || return 2
    }
    
    test_nginx_config() {
            $DAEMON -t $DAEMON_OPTS >/dev/null 2>&1
    }
    
    #
    # Function that stops the daemon/service
    #
    do_stop()
    {
            # Return
            #   0 if daemon has been stopped
            #   1 if daemon was already stopped
            #   2 if daemon could not be stopped
            #   other if a failure occurred
            start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PID --name $NAME
            RETVAL="$?"
            sleep 1
            return "$RETVAL"
    }
    
    #
    # Function that sends a SIGHUP to the daemon/service
    #
    do_reload() {
            start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME
            return 0
    }
    
    #
    # Rotate log files
    #
    do_rotate() {
            start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME
            return 0
    }
    
    #
    # Online upgrade nginx executable
    #
    # "Upgrading Executable on the Fly"
    # http://nginx.org/en/docs/control.html
    #
    do_upgrade() {
            # Return
            #   0 if nginx has been successfully upgraded
            #   1 if nginx is not running
            #   2 if the pid files were not created on time
            #   3 if the old master could not be killed
            if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then
                    # Wait for both old and new master to write their pid file
                    while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do
                            cnt=`expr $cnt + 1`
                            if [ $cnt -gt 10 ]; then
                                    return 2
                            fi
                            sleep 1
                    done
                    # Everything is ready, gracefully stop the old master
                    if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then
                            return 0
                    else
                            return 3
                    fi
            else
                    return 1
            fi
    }
    
    case "$1" in
            start)
                    [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
                    do_start
                    case "$?" in
                            0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                            2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
                    esac
                    ;;
            stop)
                    [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
                    do_stop
                    case "$?" in
                            0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                            2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
                    esac
                    ;;
            restart)
                    log_daemon_msg "Restarting $DESC" "$NAME"
                    # Check configuration before stopping nginx
                    if ! test_nginx_config; then
                            log_end_msg 1 # Configuration error
                            exit 0
                    fi
                    do_stop
                    case "$?" in
                            0|1)
                                    do_start
                                    case "$?" in
                                            0) log_end_msg 0 ;;
                                            1) log_end_msg 1 ;; # Old process is still running
                                            *) log_end_msg 1 ;; # Failed to start
                                    esac
                                    ;;
                            *)
                                    # Failed to stop
                                    log_end_msg 1
                                    ;;
                    esac
                    ;;
            reload|force-reload)
                    log_daemon_msg "Reloading $DESC configuration" "$NAME"
                    # Check configuration before reload nginx
                    #
                    # This is not entirely correct since the on-disk nginx binary
                    # may differ from the in-memory one, but that's not common.
                    # We prefer to check the configuration and return an error
                    # to the administrator.
                    if ! test_nginx_config; then
                            log_end_msg 1 # Configuration error
                            exit 0
                    fi
    
                    do_reload
                    log_end_msg $?
                    ;;
            configtest|testconfig)
                    log_daemon_msg "Testing $DESC configuration"
                    test_nginx_config
                    log_end_msg $?
                    ;;
            status)
                    status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $?
                    ;;
            upgrade)
                    log_daemon_msg "Upgrading binary" "$NAME"
                    do_upgrade
                    log_end_msg 0
                    ;;
            rotate)
                    log_daemon_msg "Re-opening $DESC log files" "$NAME"
                    do_rotate
                    log_end_msg $?
                    ;;
            *)
                    echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2
                    exit 3
                    ;;
    esac
    :
    
    • 注意设置好nginx的启动路径 DAEMON=/usr/sbin/nginx;
    • 注意设置nginx.conf配置文件路径,并且nginx.conf配置文件里面的pid路径,以及其他日志文件的路径;
    • 和apt-get官方启动脚本相比,####为修改以及备注理解部分

    设置文件权限并增加到系统服务

    sudo chmod +x ./nginx
    sudo update-rc.d nginx defaults
    

    nginx启动 关闭 重启

    sudo /etc/init.d/nginx stop
    sudo /etc/init.d/nginx start
    sudo /etc/init.d/nginx restart
    

    启动脚本涉及的命令参考:
    ulimit -n 修改:http://blog.csdn.net/yangzhenzhen/article/details/8905846
    linux shell之if_用if做判断:http://blog.csdn.net/crazyhacking/article/details/10182563
    用start-stop-daemon启动Nginx:http://blog.csdn.net/csfreebird/article/details/8181337

    相关文章

      网友评论

        本文标题:nginx基本使用系列(二)_ubuntu14.04下源码安装配

        本文链接:https://www.haomeiwen.com/subject/wkwqbttx.html