CentOS 安装OpenResty(Nginx+Lua)开发环境搭建及Lua从动态渲染网页模板及从Redis获取数据

编写日期：2018-03-05

编写作者：mtsbv110

邮    箱：[email protected]

 

主机规划：192.168.9.131

ngx_openresty版本	ngx_openresty-1.7.7.2.tar.gz	安装目录	/usr/local/servers
ngx_cache_purge	2.3.tar.gz	安装目录	/usr/local/servers/ngx_openresty-1.7.7.2/bundle
nginx_upstream_check_module	v0.3.0.tar.gz	安装目录	/usr/local/servers/ngx_openresty-1.7.7.2/bundle
http_headers.lua	http_headers.lua	安装目录	/usr/local/applications/hello/lualib/resty
http.lua	http.lua	安装目录	/usr/local/applications/hello/lualib/resty
template.lua	template.lua	安装目录	/usr/local/applications/hello/lualib/resty
html.lua	html.lua	安装目录	/usr/local/applications/hello/lualib/resty

 

主机规划：192.168.9.132

ngx_openresty版本	ngx_openresty-1.7.7.2.tar.gz	安装目录	/usr/local/servers
ngx_cache_purge	2.3.tar.gz	安装目录	/usr/local/servers/ngx_openresty-1.7.7.2/bundle
nginx_upstream_check_module	v0.3.0.tar.gz	安装目录	/usr/local/servers/ngx_openresty-1.7.7.2/bundle
http_headers.lua	http_headers.lua	安装目录	/usr/local/applications/hello/lualib/resty
http.lua	http.lua	安装目录	/usr/local/applications/hello/lualib/resty
template.lua	template.lua	安装目录	/usr/local/applications/hello/lualib/resty
html.lua	html.lua	安装目录	/usr/local/applications/hello/lualib/resty

 

主机规划：192.168.9.133

ngx_openresty版本	ngx_openresty-1.7.7.2.tar.gz	安装目录	/usr/local/servers
ngx_cache_purge	2.3.tar.gz	安装目录	/usr/local/servers/ngx_openresty-1.7.7.2/bundle
nginx_upstream_check_module	v0.3.0.tar.gz	安装目录	/usr/local/servers/ngx_openresty-1.7.7.2/bundle
http_headers.lua	http_headers.lua	安装目录	/usr/local/applications/hello/lualib/resty
http.lua	http.lua	安装目录	/usr/local/applications/hello/lualib/resty

 

 

一、部署应用层openresty（192.168.9.131）

 

yum install -y gcc gcc-c++ make auotmake autoconf libtool readline-devel pcre pcre-devel zlib zlib-devel openssl openssl-devel

 

目录规划

[root@jetsen-zk-01 ~]# mkdir -p /usr/local/servers

上传ngx_openresty-1.7.7.2.tar.gz解压/usr/local/servers

[root@jetsen-zk-01 ngx_openresty-1.7.7.2]# pwd

/usr/local/servers/ngx_openresty-1.7.7.2

[root@jetsen-zk-01 ngx_openresty-1.7.7.2]# cd bundle/LuaJIT-2.1-20150120/

[root@jetsen-zk-01 LuaJIT-2.1-20150120]# make clean && make && make install 

[root@jetsen-zk-01 LuaJIT-2.1-20150120]#

 ln -sf luajit-2.1.0-alpha /usr/local/bin/luajit

 

cd bundle  

[root@jetsen-zk-01 bundle]#

 wget https://github.com/FRiCKLE/ngx_cache_purge/archive/2.3.tar.gz

[root@jetsen-zk-01 bundle]# tar -zxvf 2.3.tar.gz

 

cd bundle  

[root@jetsen-zk-01 bundle]#

 wget https://github.com/yaoweibin/nginx_upstream_check_module/archive/v0.3.0.tar.gz

[root@jetsen-zk-01 bundle]# tar -zxvf v0.3.0.tar.gz

 

[root@jetsen-zk-01 bundle]# cd /usr/local/servers/ngx_openresty-1.7.7.2  

[root@jetsen-zk-01 ngx_openresty-1.7.7.2]# ./configure --prefix=/usr/local/servers --with-http_realip_module  --with-pcre  --with-luajit --add-module=./bundle/ngx_cache_purge-2.3/ --add-module=./bundle/nginx_upstream_check_module-0.3.0/ -j2

 

[root@jetsen-zk-01 ngx_openresty-1.7.7.2]# make && make install

 

[root@jetsen-zk-01 servers]# cd /usr/local/servers/

[root@jetsen-zk-01 servers]# /usr/local/servers/nginx/sbin/nginx -V

二、nginx+lua开发的hello world

在http部分添加：

 lua_package_path "/usr/local/servers/lualib/?.lua;;";

 lua_package_cpath "/usr/local/servers/lualib/?.so;;";

在/usr/local/servers/nginx/conf下，创建一个lua.conf

[root@jetsen-zk-01 conf]# vi lua.conf

server {

    listen       80;

    server_name  _;

 

    location /lua {

      default_type 'text/html';

      #content_by_lua 'ngx.say("hello world")';

      content_by_lua_file conf/lua/test.lua;

    }

 

}

在nginx.conf的http部分添加：

include lua.conf;

/usr/servers/nginx/sbin/nginx -t  

 

重新nginx加载配置

/usr/servers/nginx/sbin/nginx -s reload

 

创建lua目录 /usr/local/server/nginx/conf/lua

创建test.lua文件

ngx.say("hello world");

 

重新nginx加载配置

 

/usr/servers/nginx/sbin/nginx -s reload  

http://192.168.9.131/lua

 

1. 工程化的nginx+lua项目结构

hello

    hello.conf     

    lua              

      hello.lua

    lualib            

      *.lua

      *.so

 

放在/usr/local/application/hello目录下

[root@jetsen-zk-01 local]# mkdir -p /usr/local/applications/hello

[root@jetsen-zk-01 local]# mkdir -p /usr/local/applications/hello/lua

分别在对应的目录中创建对应的hello.conf和hello.lua

[root@jetsen-zk-01 hello]# cat hello.conf server {       listen       80;       server_name  _;          location /hello {           default_type 'text/html';           #lua_code_cache off;           content_by_lua_file /usr/local/applications/hello/lua/hello.lua;       }   }

 

 

[root@jetsen-zk-01 hello]# cat lua/hello.lua ngx.say("hello world");

 

将lualib 文件夹从/usr/local/servers拷贝到对应的应用程序目录中

[root@jetsen-zk-01 hello]# cp -r /usr/local/servers/lualib/ /usr/local/applications/hello/      

修改nginx.conf配置文件

 

http {     lua_package_path "/usr/local/applications/hello/lualib/?.lua;;";     lua_package_cpath "/usr/local/applications/hello/lualib/?.so;;";     include /usr/local/applications/hello/hello.conf;

          

在另外一个机器上，也用OpenResty部署一个nginx

三、配置流量分发Nginx(192.168.9.153)

 

[root@jetsen-zk-03 lualib]# cd /usr/local/applications/hello/lualib

一个流量分发的nginx，会发送http请求到后端的应用nginx上面去，所以要先引入lua http lib包

[root@jetsen-zk-03 lualib]# cd resty/

[root@jetsen-zk-03 resty]#

 wget https://raw.githubusercontent.com/pintsized/lua-resty-http/master/lib/resty/http_headers.lua

 

[root@jetsen-zk-03 resty]#

 wget https://raw.githubusercontent.com/pintsized/lua-resty-http/master/lib/resty/http.lua

local uri_args = ngx.req.get_uri_args() local productId = uri_args["productId"]   local hosts = {"192.168.9.131", "192.168.9.132"} local hash = ngx.crc32_long(productId) local index = (hash % 2) + 1 backend = "http://"..hosts[index]   local requestPath = uri_args["requestPath"] requestPath = "/"..requestPath.."?productId="..productId   local http = require("resty.http") local httpc = http.new()   local resp, err = httpc:request_uri(backend,{   method = "GET",   path = requestPath })   if not resp then   ngx.say("request error: ", err)   return end   ngx.say(resp.body)   httpc:close()

 

http://192.168.9.133/hello?requestPath=hello&productId=0(1,2,3,4,5,6……)

 

四、Nginx最终利用LUA动态渲染网页模板

应用Nginx（192.168.9.131，192.168.9.132）添加Http依赖

[root@jetsen-zk-01（02） resty]#

 

 cd /usr/local/applications/hello/lualib/resty

wget https://raw.githubusercontent.com/pintsized/lua-resty-http/master/lib/resty/http_headers.lua  

wget https://raw.githubusercontent.com/pintsized/lua-resty-http/master/lib/resty/http.lua

 

安装模板依赖组件

wget https://raw.githubusercontent.com/bungle/lua-resty-template/master/lib/resty/template.lua

wget https://raw.githubusercontent.com/bungle/lua-resty-template/master/lib/resty/template/html.lua

 

配置模板的位置

在hello.conf的server中配置模板位置

 

set $template_location "/templates";   set $template_root "/usr/local/applications/hello/templates

 

vi product.html

product id: {* productId *} product name: {* productName *} product picture list: {* productPictureList *} product specification: {* productSpecification *} product service: {* productService *} product color: {* productColor *} product size: {* productSize *} shop id: {* shopId *} shop name: {* shopName *} shop level: {* shopLevel *} shop good cooment rate: {* shopGoodCommentRate *}

 

 

nginx.conf中：

lua_shared_dict my_cache 128m;

http://192.168.9.133/product?requestPath=product&productId=1&shopId=1

192.168.9.140

/usr/local/applications/distribution

/usr/local/applications/distribution/lua

local cjson = require("cjson") local redis = require("resty.redis") local http = require("resty.http")   local function close_redis(red)         if not red then                 return         end         local pool_max_idle_time = 10000         local pool_size = 100         local ok, err = red:set_keepalive(pool_max_idle_time, pool_size)         if not ok then                 ngx.say("set keepalive error : ", err)         end end   local cache_ngx = ngx.shared.my_cache local uri_args = ngx.req.get_uri_args() local areaCode = uri_args["areaCode"]       local subjectAreaCodeNginxCacheKey = "subject_nginx_cache_areaCode"..areaCode local subjectAreaCodeNginxCache = cache_ngx:get(subjectAreaCodeCacheKey)   if subjectAreaCodeNginxCache == "" or subjectAreaCodeNginxCache == nil then --if subjectAreaCodeNginxCache ~= "" or subjectAreaCodeNginxCache ~= nil then   local red = redis:new()   red:set_timeout(1000)   local ip = "192.168.9.140"   local port = 1112   local ok, err = red:connect(ip, port)   if not ok then     ngx.say("connect to redis error : ", err)     return close_redis(red)   end     --local redisResp, redisErr = red:get("k1")   local redisResp, redisErr = red:get("subject_redis_info_areacode_"..areaCode)     if redisResp == ngx.null then       local httpc = http.new()       local resp, err = httpc:request_uri("http://39.105.18.180:9026",{       method = "GET",       path = "/jeuc/Api/SubjectInfo/getSubjectNameBySubStages?clientId=84&clientSecret=ab49b91ffec3d3a35a693f76cb122fee&subStages=%E9%AB%98%E4%B8%80&areaCode="..areaCode     })     --ngx.say("get redis lua  context : ", resp.body)     subjectAreaCodeNginxCache = resp.body     redisResp = resp.body   end     subjectAreaCodeNginxCache = redisResp     math.randomseed(tostring(os.time()):reverse():sub(1, 7))   local expireTime = math.random(600, 1200)     cache_ngx:set(subjectAreaCodeNginxCacheKey, subjectAreaCodeNginxCache, expireTime) end   ngx.say("get redis lua  context : ", subjectAreaCodeNginxCache)       --[[ngx.say("connect to redis error : ", areaCode)]]--