【Linux基础服务教程】Nginx平滑升级
第一期教程
Nginx的安装教程
一、查看旧Nginx的参数
[root@master ~]# nginx -V
nginx version: nginx/1.23.4
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_flv_module --with-http_stub_status_module --with-http_gzip_static_module --with-pcre --with-file-aio --with-http_secure_link_module --with-threads --http-client-body-temp-path=/var/tmp/nginx/client/ --http-proxy-temp-path=/var/tmp/nginx/proxy/ --http-fastcgi-temp-path=/var/tmp/nginx/fastcgi/ --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi/ --http-scgi-temp-path=/var/tmp/nginx/scgi/
注意
--prefix后面的所有参数，我们升级的时候都要带上！
二、平滑升级新Nginx操作
1.以相同的配置，配置新版本Nginx
下载新版本Nginx
[root@master ~]# wget http://nginx.org/download/nginx-1.24.0.tar.gz
解压新版本Nginx
[root@master ~]# tar xf nginx-1.24.0.tar.gz
[root@master ~]# cd nginx-1.24.0/
[root@master nginx-1.24.0]# ls
auto CHANGES CHANGES.ru conf configure contrib html LICENSE man README src
编译新版本
请勿执行
make install
[root@master nginx-1.24.0]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_flv_module --with-http_stub_status_module --with-http_gzip_static_module --with-pcre --with-file-aio --with-http_secure_link_module --with-threads --http-client-body-temp-path=/var/tmp/nginx/client/ --http-proxy-temp-path=/var/tmp/nginx/proxy/ --http-fastcgi-temp-path=/var/tmp/nginx/fastcgi/ --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi/ --http-scgi-temp-path=/var/tmp/nginx/scgi/
[root@master nginx-1.24.0]# make
会在当前目录下objs目录下生成新版本
[root@master nginx-1.24.0]# ls objs/
autoconf.err nginx ngx_auto_config.h ngx_modules.c src
Makefile nginx.8 ngx_auto_headers.h ngx_modules.o
[root@master nginx-1.24.0]# objs/nginx -v
nginx version: nginx/1.24.0
备份旧版本，拷贝新版本
[root@master nginx-1.24.0]# mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak
[root@master nginx-1.24.0]# cp objs/nginx /usr/local/nginx/sbin/
[root@master nginx-1.24.0]# ls /usr/local/nginx/sbin/
nginx nginx.bak
2.启动新版本
[root@master nginx-1.24.0]# kill -USR2 $(cat /usr/local/nginx/logs/nginx.pid)
[root@master nginx-1.24.0]# ps -aux | grep nginx
root 7724 0.0 0.1 46016 3312 ? S 14:58 0:00 nginx: master process /usr/local/nginx/sbin/nginx
nginx 7725 0.0 0.1 46480 2148 ? S 14:58 0:00 nginx: worker process
root 14194 0.0 0.1 46032 3344 ? S 18:54 0:00 nginx: master process /usr/local/nginx/sbin/nginx
nginx 14195 0.0 0.1 46496 1900 ? S 18:54 0:00 nginx: worker process
root 14197 0.0 0.0 112824 988 pts/0 R+ 18:54 0:00 grep --color=auto nginx
[root@master nginx-1.24.0]# ls /usr/local/nginx/logs/
access.log error.log nginx.pid nginx.pid.oldbin #可以发现多了一个pid文件nginx.pid.oldbin存着旧版本的pid
[root@master nginx-1.24.0]# cat /usr/local/nginx/logs/nginx.pid
14194 #新版本的进程ID
[root@master nginx-1.24.0]# cat /usr/local/nginx/logs/nginx.pid.oldbin
7724 #旧版本的进程ID
关闭旧的工作进程，并且查看仅剩旧版本主进程未关闭
[root@master nginx-1.24.0]# kill -WINCH $(cat /usr/local/nginx/logs/nginx.pid.oldbin)
[root@master nginx-1.24.0]# ps -aux | grep nginx
root 7724 0.0 0.1 46016 3312 ? S 14:58 0:00 nginx: master process /usr/local/nginx/sbin/nginx
root 14194 0.0 0.1 46032 3344 ? S 18:54 0:00 nginx: master process /usr/local/nginx/sbin/nginx
nginx 14195 0.0 0.1 46496 1900 ? S 18:54 0:00 nginx: worker process
root 14215 0.0 0.0 112824 988 pts/0 R+ 18:58 0:00 grep --color=auto nginx
关闭旧版本主进程
[root@master nginx-1.24.0]# kill 7724
[root@master nginx-1.24.0]# ps -aux | grep nginx
root 14194 0.0 0.1 46032 3344 ? S 18:54 0:00 nginx: master process /usr/local/nginx/sbin/nginx
nginx 14195 0.0 0.1 46496 1900 ? S 18:54 0:00 nginx: worker process
root 14218 0.0 0.0 112824 984 pts/0 R+ 19:00 0:00 grep --color=auto nginx
清理旧版本
[root@master nginx-1.24.0]# rm -rf /usr/local/nginx/sbin/nginx.bak
查看升级后的版本信息和配置信息
[root@master nginx-1.24.0]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.24.0
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_flv_module --with-http_stub_status_module --with-http_gzip_static_module --with-pcre --with-file-aio --with-http_secure_link_module --with-threads --http-client-body-temp-path=/var/tmp/nginx/client/ --http-proxy-temp-path=/var/tmp/nginx/proxy/ --http-fastcgi-temp-path=/var/tmp/nginx/fastcgi/ --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi/ --http-scgi-temp-path=/var/tmp/nginx/scgi/