nginx+lua+redis
git clone --branch master https://github.com/openresty/lua-resty-redis.git
./configure --prefix=/usr/local/tengine --with-http_lua_module --with-luajit-lib=/usr/local/lib/ --with-luajit-inc=/usr/local/include/luajit-2.0/ --with-lua-inc=/usr/local/include/luajit-2.0/ --with-lua-lib=/usr/local/lib/ --with-ld-opt=-Wl,-rpath,/usr/local/lib
ua我们是手工安装的， 所以才会有后面的参数设置 --with-http_lua_module --with-luajit-lib=/usr/local/lib/ --with-luajit-inc=/usr/local/include/luajit-2.0/ --with-lua-inc=/usr/local/include/luajit-2.0/ --with-lua-lib=/usr/local/lib/
--with-ld-opt
其中的 --with-ld-opt=-Wl,-rpath,/usr/local/lib:/opt/openresty/luajit/lib 参数的意思是：
这是链接器选项，目的是把 /usr/local/lib 和 /opt/openrersty/luajit/lib 这两个路径添加进
nginx 可执行文件的 RPATH 头中，这样在启动的时候，系统就可以找到正确的动态链接库文件。
https://groups.google.com/forum/#!msg/openresty/mVi0p-Qx7Qg/zNyrOZi-slgJ
cd /opt
cp /opt/source/lua-resty-redis/lib/resty/redis.lua .
git clone --branch master https://github.com/openresty/lua-resty-redis.git
测试部分
vim nginx.conf
###如果redis 里面的 myk == 1 就返回一个第一个节点，其他返回第二个节点。
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
proxy_next_upstream error timeout;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $http_x_forwarded_for;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 100m;
client_body_buffer_size 256k;
proxy_connect_timeout 180;
proxy_send_timeout 180;
proxy_read_timeout 180;
proxy_buffer_size 8k;
proxy_buffers 8 64k;
proxy_busy_buffers_size 128k;
proxy_temp_file_write_size 128k;
upstream client {
server 127.0.0.1:8001;
}
upstream client_test {
server 127.0.0.1:8002;
}
lua_package_path "/opt/lua-resty-redis/lib/resty/redis.lua";
server {
listen 8888;
location / {
default_type 'text/plain';
content_by_lua '
local redis = require "resty.redis"
local red = redis:new()
local headers=ngx.req.get_headers()
local ip=headers["X-REAL-IP"] or headers["X_FORWARDED_FOR"] or ngx.var.remote_addr or "0.0.0.0"
red:set_timeout(1000) -- 1 sec
local ok, err = red:connect("192.168.5.101", 6379)
if not ok then
ngx.say("failed to connect: ", err)
return
end
local res, flags, err = red:get("myk")
if err then
ngx.say("error",err)
return
end
if res == "1" then
ngx.exec("@client")
return
end
ngx.exec("@client_test")
';
}
location /a{
content_by_lua '
ngx.exec("@client");
';
}
location @client{
proxy_pass http://client;
}
location @client_test{
proxy_pass http://client_test;
}
location /hello {
proxy_pass http://client;
}
location = /50x.html {
root html;
}
}
}
nginx+lua+redis 测试部分
worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; proxy_next_upstream error timeout; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $http_x_forwarded_for; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; client_max_body_size 100m; client_body_buffer_size 256k; proxy_connect_timeout 180; proxy_send_timeout 180; proxy_read_timeout 180; proxy_buffer_size 8k; proxy_buffers 8 64k; proxy_busy_buffers_size 128k; proxy_temp_file_write_size 128k; upstream client { server 192.168.5.101; } upstream client_test { server 192.168.5.101; } lua_package_path "/usr/local/verynginx/lualib/redis/redis.lua"; server { listen 80; location / { default_type 'text/plain'; content_by_lua ' local redis = require "resty.redis" local red = redis:new() local headers=ngx.req.get_headers() local ip=headers["X-REAL-IP"] or headers["X_FORWARDED_FOR"] or ngx.var.remote_addr or "0.0.0.0" red:set_timeout(1000) -- 1 sec ngx.say(ip) local ok, err = red:connect("192.168.5.101", 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 not res[1] 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 '; } location @client{ proxy_pass http://client; } location @client_test{ proxy_pass http://client_test; } location /hello { default_type 'text/plain'; content_by_lua 'ngx.say("hello, lua")'; } location = /50x.html { root html; } } }
