025_lua脚本语言

一、
--cat /opt/nginx/conf/conf.d
lua_package_path '/opt/nginx/conf/lua/?.lua;;'; --lua模块路径，其中”;;”表示默认搜索路径
lua_package_cpath '/opt/nginx/conf/lua/?.so;;'; --c模块

init_by_lua_file '/opt/nginx/conf/lua/init_by_lua.lua'; --nginx Master进程加载配置时执行；通常用于初始化全局配置/预加载Lua模块
init_worker_by_lua_file '/opt/nginx/conf/lua/init_worker_by_lua.lua'; -- 每个Nginx Worker进程启动时调用的计时器，如果Master进程不允许则只会在init_by_lua之后调用；通常用于定时拉取配置/数据，或者后端服务的健康检查
log_by_lua_file '/opt/nginx/conf/lua/log_by_lua.lua'; --log阶段处理，比如记录访问量/统计平均响应时间
access_by_lua_file '/opt/nginx/conf/lua/access_by_lua.lua'; --请求访问阶段处理，用于访问控制

# 缓存配置
# 所有可信IP, 包括:腾讯/阿里服务节点, 金色家园各个机房IP段及办公网IP段; 数据在Nginx初始化时倒入
lua_shared_dict eleme_trusted_iplib 10M; #共享全局变量，在所有worker间共享
lua_shared_dict eleme_whitelist_iplib 1M; # 仅金色家园各个机房IP段及办公网IP段

# ngx_waf
lua_shared_dict ngx_waf_locks 3M; # waf locks
lua_shared_dict ngx_waf_counter 500M; # counter data
lua_shared_dict ngx_waf_counter_exptime 500M; # counter exptime
lua_shared_dict ngx_waf_defense_crawler_blacklist 10M; # blacklist

# 配置相关
lua_shared_dict ngx_admin_config 1M; # ngx_admin_config配置
--[[#参考链接
http://wiki.jikexueyuan.com/project/nginx-lua/lua.html #首页 Wiki 服务器 Nginx 跟我学 Nginx+Lua 开发
http://jinnianshilongnian.iteye.com/blog/2186448
http://jinnianshilongnian.iteye.com/category/333854 #第二章 OpenResty(Nginx+Lua)开发入门->跟我学Nginx+Lua开发(开涛)
]]
二、
(1)socket模块安装

wget http://w3.impa.br/~diego/software/luasocket/old/luasocket-2.0.3-rc1.zip
mv luasocket-2.0.3 /usr/local/include/
cd /usr/local/include/
cp luajit-2.0/l* luasocket-2.0.3/src/
make
make install
lua
> require("socket")
>
cp src/socket.lua /opt/nginx/conf/lua/
(2)第二种方式,luarocks(类似yum)
yum -y install luarocks.x86_64
luajit -llyaml
>local lyaml = require "lyaml"

>print(package.searchpath('lyaml', package.path)) --I can get the path to the file like this:
/usr/local/share/lua/5.1/lyaml/init.lua

package.path='./?.lua;/usr/share/lua/5.1/?.lua;/usr/share/lua/5.1/?/init.lua;/usr/lib64/lua/5.1/?.lua;/usr/lib64/lua/5.1/?/init.lua;/opt/nginx/conf/lua/?.lua;;'

print(package.path)

<1>安装依赖
yum install gcc gcc-c++ kernel-devel
yum install readline-dev
yum install ncurses-devel.i386
<2>安装lua
cd /usr/local/ && wget http://www.lua.org/ftp/lua-5.1.5.tar.gz
tar zxvf lua-5.1.5.tar.gz
cd lua-5.1.5
vi Makefile
INSTALL_TOP= /usr/local/lua-5.1.5
make linux
make install
<3>安装luarocks
cd /usr/local/include/ && wget https://luarocks.org/releases/luarocks-2.4.3.tar.gz
tar zxpf luarocks-2.4.3.tar.gz
cd luarocks-2.4.3
./configure --prefix=/usr/local/luarocks-2.4.3 --with-lua=/usr/local/lua-5.1.5
make build
make install
<4>配置环境变量
export PATH=$PATH:/usr/local/luarocks-2.4.3/bin:/usr/local/lua-5.1.5/bin:/usr/local/lua-5.1.5/bin
export LUA_PATH="/usr/local/include/luarocks-2.4.3/share/lua/5.1/?.lua;/usr/local/include/luarocks-2.4.3/share/lua/5.1/lyaml/?.lua;/opt/nginx/conf/lua/?.lua;;" #等同于nginx配置中的lua_package_path
export LUA_CPATH="/opt/nginx/modules/?.so;;/usr/local/include/luarocks-2.4.3/lib/luarocks/rocks;/usr/local/include/luarocks-2.4.3/lib/luarocks" #等同于nginx配置中的lua_package_cpath
<5>luarocks常用命令
# luarocks list
luasocket
3.0rc1-2 (installed) - /usr/local/include/luarocks-2.4.3/lib/luarocks/rocks
lyaml
6.1.3-1 (installed) - /usr/local/include/luarocks-2.4.3/lib/luarocks/rocks
# luarocks path
export LUA_PATH='/root/.luarocks/share/lua/5.1/?.lua;/root/.luarocks/share/lua/5.1/?/init.lua;/usr/local/luarocks-2.4.3/share/lua/5.1/?.lua;/usr/local/luarocks-2.4.3/share/lua/5.1/?/init.lua;./?.lua;/usr/local/share/lua/5.1/?.lua;/usr/local/share/lua/5.1/?/init.lua;/usr/local/lib/lua/5.1/?.lua;/usr/local/lib/lua/5.1/?/init.lua'
export LUA_CPATH='/root/.luarocks/lib/lua/5.1/?.so;/usr/local/luarocks-2.4.3/lib/lua/5.1/?.so;./?.so;/usr/local/lib/lua/5.1/?.so;/usr/local/lib/lua/5.1/loadall.so'

参考：https://luarocks.org/#quick-start
http://uncle-code.iteye.com/blog/2257970
三、按照项目的salt安装

/opt/luarocks/bin/luarocks install luasocket 2.0.2-6
/usr/local/bin/luajit -e "require('socket')"
/opt/luarocks/bin/luarocks install lyaml 6.1.1-4
/usr/local/bin/luajit -e "require('lyaml')"
/opt/luarocks/bin/luarocks install lua-resty-iputils
/usr/local/bin/luajit -e "require('resty.iputils')"

cd /opt && ln -s luarocks-2.4.1 luarocks
四、生产部署只需要看这些就ok了。

cd /tmp/waimai_lua

eoc upload /tmp/waimai_lua/xg1-waimai-openapi-proxy-1-lua.tar.gz /opt/nginx/conf/lua -h wg-stargate-web-3
eoc create -h wg-stargate-web-3 --script 'cd /opt/nginx/conf/lua/ && tar -xf xg1-waimai-openapi-proxy-1-lua.tar.gz' -y

eoc upload /tmp/waimai_lua/xg1-waimai-openapi-proxy-1-luajit-2.1.tar.gz /usr/local/include/ -h wg-stargate-web-3
eoc create -h wg-stargate-web-3 --script 'cd /usr/local/include/ && tar -xf xg1-waimai-openapi-proxy-1-luajit-2.1.tar.gz' -y

eoc upload /tmp/waimai_lua/xg1-waimai-openapi-proxy-1-luarocks-2.4.1.tar.gz /opt -h wg-stargate-web-3
eoc create -h wg-stargate-web-3 --script 'cd /opt && tar -xf xg1-waimai-openapi-proxy-1-luarocks-2.4.1.tar.gz' -y

eoc upload /tmp/waimai_lua/ngx_func_lua.conf /opt/nginx/conf/conf.d -h wg-stargate-web-3

eoc upload /tmp/waimai_lua/xg1-waimai-openapi-proxy-1-ngx_http_lua_upstream_module.so /opt/tengine-2.1.2/modules -h wg-stargate-web-3
eoc upload /tmp/waimai_lua/xg1-waimai-openapi-proxy-1-yaml.so /usr/local/lib/lua/5.1/ -h wg-stargate-web-3
cd /usr/local/lib/lua/5.1 && mv xg1-waimai-openapi-proxy-1-yaml.so yaml.so && chmod a+x yaml.so