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Nginx是廣為流行的輕量級Web服務器軟件。它開源，短小精悍，簡單易用，深受廣大互聯網企業以及IT運維人員所喜愛。很多時候，我們在生產環境基于編譯方式安裝Nginx后，Nginx需要手工配置自啟動服務，以確保服務器異常宕機后自動重啟該服務。以下描述的是基于CentOS 7下來配置自啟動服務，供大家參考。
一、yum 安裝方式Nginx自啟動
當前環境
[root@node142 ~]# more /etc/redhat-release CentOS Linux release 7.2.1511 (Core)
查看是否保護nginx rpm包
[root@node142 ~]# 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
查看是否存在相應的服務，如下，有nginx.service
[root@node142 ~]# systemctl list-unit-files |grep nginx nginx.service disabled
將其配置為自動
[root@node142 ~]# systemctl enable nginx.service
查看nginx.service文件
[root@node142 ~]# 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
上述配置文件中的內容和官網提供的一模一樣
https://www.nginx.com/resources/wiki/start/topics/examples/systemd/
二、編譯安裝后的自啟動配置
由于是編譯安裝，因此，對于這個自啟動的腳本我們需要自行配制。
具體則是參考上面的鏈接或者上面給出的nginx.service文件內容。
然后將其保存為 /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 #
無相應的rpm包，如下查詢，此處為編譯安裝
# rpm -qa|grep nginx
也沒有添加相應的自啟動服務
# systemctl list-unit-files |grep nginx
nginx版本
# /u01/app/nginx/sbin/nginx -v nginx version: nginx/1.8.1
獲取nginx編譯模塊，然后查看諸如pid，二進制位置并記錄以便修改啟動文件
# /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
下面我們生成一個新的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
下面我們先手工停止nginx
# /u01/app/nginx/sbin/nginx -s stop
配置自啟動
# systemctl enable nginx.service
使用systemctl工具啟動nginx服務
# 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內容，希望對大家的學習有所幫助，也希望大家多多支持億速云。
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