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详解基于CentOS 7配置Nginx自启动

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[运维安全 所属分类 运维安全 | 发布者 店小二04 | 时间 | 作者 红领巾 ] 0人收藏点击收藏

Nginx是广为流行的轻量级Web服务器软件。它开源,短小精悍,简单易用,深受广大互联网企业以及IT运维人员所喜爱。很多时候,我们在生产环境基于编译方式安装Nginx后,Nginx需要手工配置自启动服务,以确保服务器异常宕机后自动重启该服务。以下描述的是基于CentOS 7下来配置自启动服务,供大家参考。

一、yum 安装方式Nginx自启动

当前环境

[[email protected] ~]# more /etc/redhat-release
CentOS linux release 7.2.1511 (Core)
查看是否保护nginx rpm包

[[email protected] ~]# rpm -qa|grep nginx
nginx-mod-http-geoip-1.12.2-2.el7.x86_64
nginx-1.12.2-2.el7.x86_64
nginx-filesystem-1.12.2-2.el7.noarch
nginx-mod-http-xslt-filter-1.12.2-2.el7.x86_64
nginx-mod-stream-1.12.2-2.el7.x86_64
nginx-mod-http-perl-1.12.2-2.el7.x86_64
nginx-mod-http-image-filter-1.12.2-2.el7.x86_64
nginx-all-modules-1.12.2-2.el7.noarch
nginx-mod-mail-1.12.2-2.el7.x86_64
查看是否存在相应的服务,如下,有nginx.service

[[email protected] ~]# systemctl list-unit-files |grep nginx
nginx.service disabled
将其配置为自动

[[email protected] ~]# systemctl enable nginx.service
查看nginx.service文件

[[email protected] ~]# more /lib/systemd/system/nginx.service
[Unit]
Description=The nginx HTTP and reverse proxy server
After=network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
PIDFile=/run/nginx.pid
# Nginx will fail to start if /run/nginx.pid already exists but has the wrong
# SELinux context. This might happen when running `nginx -t` from the cmdline.
# https://bugzilla.redhat.com/show_bug.cgi?id=1268621
ExecStartPre=/usr/bin/rm -f /run/nginx.pid
ExecStartPre=/usr/sbin/nginx -t
ExecStart=/usr/sbin/nginx
ExecReload=/bin/kill -s HUP $MAINPID
KillSignal=SIGQUIT
TimeoutStopSec=5
KillMode=process
PrivateTmp=true
[Install]
WantedBy=multi-user.target
上述配置文件中的内容和官网提供的一模一样
https://www.nginx.com/resources/wiki/start/topics/examples/systemd/

二、编译安装后的自启动配置

由于是编译安装,因此,对于这个自启动的脚本我们需要自行配制。

具体则是参考上面的链接或者上面给出的nginx.service文件内容。

然后将其保存为 /lib/systemd/system/nginx.service。

看下面的例子

# more /etc/redhat-release
CentOS Linux release 7.4.1708 (Core)
# ps -ef|grep nginx
root 10092 10014 0 16:23 pts/0 00:00:00 grep --color=auto nginx
root 20791 1 0 Mar20 ? 00:00:00 nginx: master process ./sbin/nginx -c /u01/app/nginx/nginx.conf
nobody 20792 20791 0 Mar20 ? 00:00:44 nginx: worker process
nobody 20793 20791 0 Mar20 ? 00:00:42 nginx: worker process
nobody 20794 20791 0 Mar20 ? 00:00:50 nginx: worker process
nobody 20795 20791 0 Mar20 ? 00:00:44 nginx: worker process
nobody 20796 20791 0 Mar20 ? 00:00:43 nginx: worker process
nobody 20797 20791 0 Mar20 ? 00:00:43 nginx: worker process
nobody 20798 20791 0 Mar20 ? 00:00:37 nginx: worker process
nobody 20799 20791 0 Mar20 ? 00:00:48 nginx: worker process
nobody 20800 20791 0 Mar20 ? 00:00:04 nginx: cache manager process
#
无相应的rpm包,如下查询,此处为编译安装

# rpm -qa|grep nginx
也没有添加相应的自启动服务

# systemctl list-unit-files |grep nginx
nginx版本

# /u01/app/nginx/sbin/nginx -v
nginx version: nginx/1.8.1
获取nginx编译模块,然后查看诸如pid,二进制位置并记录以便修改启动文件

# /u01/app/nginx/sbin/nginx -V
nginx version: nginx/1.8.1
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/u01/app/nginx --sbin-path=/u01/app/nginx/sbin/nginx
--conf-path=/u01/app/nginx/nginx.conf --error-log-path=/u01/app/nginx/log/error.log
--http-log-path=/u01/app/nginx/log/access.log --pid-path=/u01/app/nginx/nginx.pid
--lock-path=/u01/app/nginx/nginx.lock --http-client-body-temp-path=/u01/app/nginx/client_temp
--http-proxy-temp-path=/u01/app/nginx/proxy_temp
--http-fastcgi-temp-path=/u01/app/nginx/fastcgi_temp
--http-uwsgi-temp-path=/u01/app/nginx/uwsgi_temp --http-scgi-temp-path=/u01/app/nginx/scgi_temp
--user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module
--with-http_addition_module --with-http_sub_module --with-http_dav_module
--with-http_flv_module --with-http_mp4_module --with-http_gunzip_module
--with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module
--with-http_stub_status_module --with-http_auth_request_module --with-mail --with-mail_ssl_module
--with-file-aio --with-http_spdy_module --with-ipv6

下面我们生成一个新的nginx.service文件

# vim /lib/systemd/system/nginx.service
[Unit]
Description=The NGINX HTTP and reverse proxy server
After=syslog.target network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
PIDFile=/u01/app/nginx/nginx.pid
ExecStartPre=/u01/app/nginx/sbin/nginx -t
ExecStart=/u01/app/nginx/sbin/nginx
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true
[Install]
WantedBy=multi-user.target
下面我们先手工停止nginx

# /u01/app/nginx/sbin/nginx -s stop
配置自启动

# systemctl enable nginx.service
使用systemctl工具启动nginx服务

# systemctl start nginx.service
# systemctl status nginx.service
● nginx.service - The NGINX HTTP and reverse proxy server
Loaded: loaded (/usr/lib/systemd/system/nginx.service; disabled; vendor preset: disabled)
Active: active (running) since Thu 2018-03-29 16:37:47 CST; 6s ago
Process: 10588 ExecStart=/u01/app/nginx/sbin/nginx (code=exited, status=0/SUCCESS)
Process: 10586 ExecStartPre=/u01/app/nginx/sbin/nginx -t (code=exited, status=0/SUCCESS)
Main PID: 10590 (nginx)
CGroup: /system.slice/nginx.service
├─10590 nginx: master process /u01/app/nginx/sbin/nginx
├─10591 nginx: worker process # Author : Leshami
├─10592 nginx: worker process # Blog : https://blog.csdn.net/leshami
├─10593 nginx: worker process
├─10594 nginx: worker process
├─10595 nginx: worker process
├─10596 nginx: worker process
├─10597 nginx: worker process
├─10598 nginx: worker process
├─10599 nginx: cache manager process
└─10600 nginx: cache loader process
Mar 29 16:37:47 ydq-std systemd[1]: Starting The NGINX HTTP and reverse proxy server...
Mar 29 16:37:47 ydq-std nginx[10586]: nginx: the configuration file /u01/app/nginx/nginx.conf syntax is ok
Mar 29 16:37:47 ydq-std nginx[10586]: nginx: configuration file /u01/app/nginx/nginx.conf test is successful
Mar 29 16:37:47 ydq-std systemd[1]: Started The NGINX HTTP and reverse proxy server.

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。


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