服务管理--Nginx
Nginx --升级
一.Nginx 升级实验
源码包安装(1.配置 2.编译 3.安装)
1.先解压升级包 [root@vlnx251101 ~]# tar xf nginx-1.13.4.tar.gz 2.转到升级包那个目录 [root@vlnx251101 ~]# cd nginx-1.13.4/ 3.指定目录等问题 （prce-8.40）支持正则 [root@vlnx251101 nginx-1.13.4]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_stub_status_module --with-file-aio --with-http_dav_module --with-pcre=../pcre-8.40 [root@vlnx251101 nginx-1.13.4]# make 4.查看当前版本 [root@vlnx251101 nginx-1.13.4]# /usr/local/nginx/sbin/nginx -v nginx version: nginx/1.12.1
5.把之前的旧的备份一下 [root@mysqlb nginx-1.13.4]# mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak [root@mysqlb nginx-1.13.4]# ls auto CHANGES.ru configure html Makefile objs src CHANGES conf contrib LICENSE man README [root@mysqlb nginx-1.13.4]# cp objs/nginx /usr/local/nginx/sbin/ 6.查看当前版本 [root@mysqlb nginx-1.13.4]# /usr/local/nginx/sbin/nginx -v nginx version: nginx/1.13.4
方法一：
[root@mysqlb nginx-1.13.4]# make upgrade
方法二：
1.查看nginx的pid
[root@mysqlb ~]# ps -ef | grep nginx root 64600 1 0 16:47 ? 00:00:00 nginx: master process /usr/local/ngin /sbin/nginxnginx 64601 64600 0 16:47 ? 00:00:00 nginx: worker process root 70426 58718 0 17:21 pts/3 00:00:00 grep --color=auto nginx
2.执行 kill -USR2 pid
[root@mysqlb ~]# kill -USR2 64600 [root@mysqlb ~]# ps -ef | grep nginx root 64600 1 0 16:47 ? 00:00:00 nginx: master process /usr/local/ngin /sbin/nginxnginx 64601 64600 0 16:47 ? 00:00:00 nginx: worker process root 70428 64600 0 17:22 ? 00:00:00 nginx: master process /usr/local/ngin /sbin/nginxnginx 70429 70428 0 17:22 ? 00:00:00 nginx: worker process root 70432 58718 0 17:23 pts/3 00:00:00 grep --color=auto nginx
此时,新旧版本的nginx实例会同时运行,共同处理输入的请求.要逐步停止旧版本的nginx实例,必须发送WINCH信号给旧的主进程,然后,它的工作进程就将开始正常关闭:
3.执行 kill -WINCH pid
[root@mysqlb ~]# kill -WINCH 64600 [root@mysqlb ~]# ps -ef | grep nginx root 64600 1 0 16:47 ? 00:00:00 nginx: master process /usr/local/ngin /sbin/nginxroot 70428 64600 0 17:22 ? 00:00:00 nginx: master process /usr/local/ngin /sbin/nginxnginx 70429 70428 0 17:22 ? 00:00:00 nginx: worker process root 70434 58718 0 17:24 pts/3 00:00:00 grep --color=auto nginx
如果尝试升级成功，也希望保留新的服务器时，发送 QUIT 信号给旧的主进程使其退出而只留下新的服务器运行。
4.执行 kill -QUIT pid
[root@mysqlb ~]# kill -QUIT 64600 [root@mysqlb ~]# ps -ef | grep nginx root 70428 1 0 17:22 ? 00:00:00 nginx: master process /usr/local/ngin /sbin/nginxnginx 70429 70428 0 17:22 ? 00:00:00 nginx: worker process root 70436 58718 0 17:26 pts/3 00:00:00 grep --color=auto nginx
不执行第四步还可以恢复之前的旧版本
[root@vlnx251101 ~]# rm -rf /usr/local/nginx/sbin/nginx [root@vlnx251101 ~]# cp /usr/local/nginx/sbin/nginx.bak /usr/local/nginx/sbin/nginx [root@vlnx251101 ~]# kill -HUP 44610 [root@vlnx251101 ~]# ps -ef | grep nginx root 44610 1 0 12:40 ? 00:00:00 nginx: master process /usr/local/nginx/sbin/nginx root 74746 44610 0 14:38 ? 00:00:00 nginx: master process /usr/local/nginx/sbin/nginx nginx 74747 74746 0 14:38 ? 00:00:00 nginx: worker process nginx 77990 44610 0 14:53 ? 00:00:00 nginx: worker process [root@vlnx251101 ~]# kill -QUIT 74746 [root@vlnx251101 ~]# ps -ef | grep nginx root 44610 1 0 12:40 ? 00:00:00 nginx: master process /usr/local/nginx/sbin/nginx nginx 77990 44610 0 14:53 ? 00:00:00 nginx: worker process
二. LuaJIT即采用C语言写的Lua代码的解释器
1.下载LuaJIT
先安装yum install wget
[root@mysqlb ~]# wget http://luajit.org/download/LuaJIT-2.0.5.tar.gz
2.编译，安装
[root@mysqlb ~]# tar xf LuaJIT-2.0.5.tar.gz [root@mysqlb ~]# cd LuaJIT-2.0.5/ [root@mysqlb LuaJIT-2.0.5]# make install PREFIX=/usr/local/luajit [root@mysqlb LuaJIT-2.0.5]# echo "/usr/local/luajit/lib/" > /etc/ld.so.conf.d/usr_local_luajit_lib.conf [root@mysqlb LuaJIT-2.0.5]# ldconfig (刷新配置文件)
3.配置环境变量
[root@mysqlb LuaJIT-2.0.5]# export LUAJIT_LIB=/usr/local/luajit/lib [root@mysqlb LuaJIT-2.0.5]# export LUAJIT_INC=/usr/local/luajit/include/luajit-2.0
4.Lua程序
[root@mysqlb LuaJIT-2.0.5]# vim hello.lua
[root@mysqlb LuaJIT-2.0.5]# cat hello.lua
print ("Hello World")
[root@mysqlb LuaJIT-2.0.5]# lua hello.lua
Hello World
[root@mysqlb LuaJIT-2.0.5]# lua
Lua 5.1.4 Copyright (C) 1994-2008 Lua.org, PUC-Rio
>
> print ("Hello World")
Hello World
>
5.下载NDK与Lua_module
[root@mysqlb ~]# tar xf ngx_devel_kit-0.3.0.tar [root@mysqlb ~]# tar xf lua-nginx-module-0.10.10.tar [root@mysqlb ~]# tar xf nginx-1.13.4.tar [root@mysqlb ~]# cd nginx-1.13.4 [root@mysqlb nginx-1.13.4]# make clean rm -rf Makefile objs [root@mysqlb nginx-1.13.4]# ./configure --prefix=/usr/local/nginx1134 --user=nginx --gro up=nginx --with-http_ssl_module --with-http_stub_status_module --with-file-aio --with-http_dav_module --with-pcre=../pcre-8.40 --add-module=../ngx_devel_kit-0.3.0 --add-module=../lua-nginx-module-0.10.10 [root@mysqlb nginx-1.13.4]# make && make install
6.更改配置文件
[root@mysqlb nginx-1.13.4]# vim /usr/local/nginx1134/conf/nginx.conf
[root@mysqlb nginx-1.13.4]# echo 'ngx.say("Hello World")' > /tmp/hello.lua
千万记得杀死80端口进程
[root@mysqlb nginx-1.13.4]# pkill nginx
[root@mysqlb nginx-1.13.4]# /usr/local/nginx1134/sbin/nginx -c /usr/local/nginx1134/conf
/nginx.conf
7.结果
[root@mysqlb nginx-1.13.4]# curl 192.168.88.101/test1 Hello world [root@mysqlb nginx-1.13.4]# curl 192.168.88.101/test2 Hello World
三. 重写(rewrite)
1.更改配置文件
[root@mysqlb nginx]# cd /usr/local/nginx/conf/nginx.conf
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
#location / {
# root html;
#index index.html index.htm;
# }
location /index.html {
root html;
rewrite /index.html /index.php break; break:不会在执行后面那个,到这里终止.
}
#error_page 404 /404.html;
[root@mysqlb nginx]# echo php > html/index.php [root@mysqlb nginx]# ls html/ 50x.html index.html index.php [root@mysqlb nginx]# cat html/index.php php
2.重启服务
[root@mysqlb nginx]# systemctl restart nginx
[root@mysqlb nginx]# curl 192.168.88.101/index.html
php
