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lua是一个简洁、轻量、可扩展的脚本语言。nginx+lua开发充分的结合Nginx的并发处理epoll优势和lua的轻量实现简单的功能切高并发的场景。

1.安装lua

如果是centos7版本之上会自带lua，版本5.1.4。lua没有安装

yum install lua

2.安装LuaJIT

安装LuaJIT环境，比自带的lua解析器扩展模块多并且高效。

cd /opt/download
wget http://luajit.org/download/LuaJIT-2.0.2.tar.gz
tar -zxvf LuaJIT-2.0.2.tar.gz
cd LuaJIT-2.0.2
make install  PREFIX=/usr/local/LuaJIT
export LUAJIT_LIB=/usr/local/LuaJIT/lib
export LUAJIT_INC=/usr/local/LuaJIT/include/luajit-2.0

加载lua库，加入到ld.so.conf文件

echo "/usr/local/LuaJIT/lib" >> /etc/ld.so.conf
ldconfig

3.下载ngx_devel_kit和lua-nginx-module

cd /opt/download
wget https://github.com/simpl/ngx_devel_kit/archive/v0.3.0.tar.gz
tar -zxvf v0.3.0.tar.gz

wget https://github.com/openresty/lua-nginx-module/archive/v0.10.9rc7.tar.gz
tar -zxvf v0.10.9rc7.tar.gz

4.nginx编译模块

将ngx_devel_kit模块和lua-nginx-module模块编译进nginx

cd /opt/download/nginx-1.14.2
nginx -V

输出

--prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie' --add-module=/opt/download/echo-nginx-module-0.61 --with-http_geoip_module

添加ngx_devel_kit模块和lua-nginx-module模块添加到编译参数

--prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie' --add-module=/opt/download/echo-nginx-module-0.61 --with-http_geoip_module --add-module=/opt/download/lua-nginx-module-0.10.9rc7 --add-module=/opt/download/ngx_devel_kit-0.3.0

./configure 编译参数
make && make install

5.nginx调用lua模块指令

nginx的可插拔模块化加载执行，共11个处理阶段

6.nginx调用lua的api

7.灰度发布

按照一定的关系区别，分部分的代码进行上线，使代码的发布能平滑过渡上线。

未完成待续