install luajit in nginx

https://github.com/openresty/lua-nginx-module

安装

• 安装 LuaJit
• 下载 ngx_devel_kit
• 下载 ngx_lua
• 下载 Nginx

 wget 'http://nginx.org/download/nginx-1.9.7.tar.gz'
 tar -xzvf nginx-1.9.7.tar.gz
 cd nginx-1.9.7/
# tell nginx's build system where to find LuaJIT 2.0:

export LUAJIT_LIB=/path/to/luajit/lib

export LUAJIT_INC=/path/to/luajit/include/luajit-2.0
# tell nginx's build system where to find LuaJIT 2.1:

export LUAJIT_LIB=/path/to/luajit/lib

export LUAJIT_INC=/path/to/luajit/include/luajit-2.1
# or tell where to find Lua if using Lua instead:

#export LUA_LIB=/path/to/lua/lib

#export LUA_INC=/path/to/lua/include
# Here we assume Nginx is to be installed under /opt/nginx/.

./configure –prefix=/opt/nginx 

–with-ld-opt="-Wl,-rpath,/path/to/luajit-or-lua/lib" 

–add-module=/path/to/ngx_devel_kit 

–add-module=/path/to/lua-nginx-module
make -j2

make install

测试

在nginx.conf中添加下面部分内容

location /hello {
    default_type 'text/plain';
    content_by_lua 'ngx.say("hello, world")';
}

验证结果

[root@1184c0eeaa0a nginx-1.8.1]# curl 127.0.0.1:8080/hello
hello, world

示例2 操作Redis

github地址: lua-resty-redis

下载lib/resty/redis.lua文件到pato/lib/resty/redis.lua

修改nginx.conf文件

# you do not need the following line if you are using
# the OpenResty bundle:
lua_package_path "/path/to/lua-resty-redis/lib/?.lua;;";
server {

location /test {

content_by_lua '

local redis = require "resty.redis"

local red = redis:new()
        red:set_timeout(1000) -- 1 sec

        -- or connect to a unix domain socket file listened
        -- by a redis server:
        --     local ok, err = red:connect("unix:/path/to/redis.sock")

        local ok, err = red:connect("127.0.0.1", 6379)
        if not ok then
            ngx.say("failed to connect: ", err)
            return
        end

        ok, err = red:set("dog", "an animal")
        if not ok then
            ngx.say("failed to set dog: ", err)
            return
        end

        ngx.say("set result: ", ok)

        local res, err = red:get("dog")
        if not res then
            ngx.say("failed to get dog: ", err)
            return
        end

        if res == ngx.null then
            ngx.say("dog not found.")
            return
        end

        ngx.say("dog: ", res)

        red:init_pipeline()
        red:set("cat", "Marry")
        red:set("horse", "Bob")
        red:get("cat")
        red:get("horse")
        local results, err = red:commit_pipeline()
        if not results then
            ngx.say("failed to commit the pipelined requests: ", err)
            return
        end

        for i, res in ipairs(results) do
            if type(res) == "table" then
                if res[1] == false then
                    ngx.say("failed to run command ", i, ": ", res[2])
                else
                    -- process the table value
                end
            else
                -- process the scalar value
            end
        end

        -- put it into the connection pool of size 100,
        -- with 10 seconds max idle time
        local ok, err = red:set_keepalive(10000, 100)
        if not ok then
            ngx.say("failed to set keepalive: ", err)
            return
        end

        -- or just close the connection right away:
        -- local ok, err = red:close()
        -- if not ok then
        --     ngx.say("failed to close: ", err)
        --     return
        -- end
    &#39;</span><span class="p">;</span>
<span class="p">}</span>

}

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