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1.安装依赖环境yum -y install gcc zlib zlib-devel pcre-devel openssl openssl-devel 2.安装LuaJITcd /usr/local/ mkdir LuaJIT cd /usr/local/LuaJIT 3.安装nginxcd /usr/local/ mkdir nginx 下载ngx_devel_kit wget https://github.com/simpl/ngx_devel_kit/archive/v0.3.0.tar.gz
下载lua-nginx-module wget https://github.com/openresty/lua-nginx-module/archive/v0.10.9rc7.tar.gz 下载nginx wget http://nginx.org/download/nginx-1.12.1.tar.gz 解压文件 tar -xvf ngx_devel_kit-0.3.0 .tar.gz tar -xvf lua-nginx-module-0.10.9rc7.tar.gz tar -xvf nginx-1.12.1.tar.gz 编译nginx cd nginx-1.12.1 ./configure --prefix=/usr/local/nginx --add-module=../ngx_devel_kit-0.3.0 --add-module=../lua-nginx-module-0.10.9rc7 安装 make
make install
或者合并两个命令(4表示并行运行任务的数量) make -j 4 && make install
启动nginx cd /usr/local/nginx/sbin ./nginx 测试是否启动成功: 访问 http:127.0.0.1:80 显示welcome to n ginx!表示启动成功
关闭nginx ./nginx –s stop
4.安装rediscd /usr/local mkdir redis 下载 wget http://download.redis.io/releases/ redis-2.8.17.tar.gz 解压 tar -xvf redis-2.8.17.tar.gz 进入解压后的文件夹 cd redis-2.8.17 安装 make 启动redis(&表示后台运行) cd src
./redis-server &
启动成功后按ctrl+c退出启动界面 测试 ./redis-cli set foo liq ---OK get foo ---liq 关闭redis SHUTDOWN
5.配置redis主从
5.1主reids 配置文件 复制一份redis的配置文件: cd /usr/local/redis/redis-2.8.17 mkdir –p 6379/data 6380/data cp redis.conf /usr/local/redis/redis-2.8.17/6379/data/redis-6379.conf 编辑文件 cd /usr/local/redis/ redis-2.8.17/6379/data/ vim redis-6379.conf cd /usr/local/redis/ redis-2.8.17/6379/data/ vim redis-6379.conf 5.1.1 daemonize no 修改为: daemonize yes (后台程序方式运行) 5.1.2 pidfile /var/run/redis_6379.pid 修改为: pidfile /usr/local/redis/redis-2.8.17/6379/redis_6379.pid 5.1.3 //设置请求密码 requirepass system 5.1.4 //设置数据文件路径 dir /usr/local/redis/redis-2.8.17/6379/data
5.2从reids 配置文件
cp /usr/local/redis/redis-2.8.17/6379/data/redis-6379.conf /usr/local/redis/redis-2.8.17/6380/data/redis-6380.conf 5.2.1 port 改为6380 5.2.2 pidfile 改为/usr/local/redis/redis-2.8.17/6380/redis_6380.pid 5.2.2 删除 requirepass system 5.2.3 //设置数据文件路径 dir /usr/local/redis/redis-2.8.17/6380/data 5.2.4 添加从属关系 slaveof 127.0.0.1 6379 5.2.5 添加主redis访问密码 masterauth system
5.3启动redis
/usr/local/redis/redis-2.8.17/src/redis-server /usr/local/redis/redis-2.8.17/6379/redis-6379.conf /usr/local/redis/redis-2.8.17/src/redis-server /usr/local/redis/redis-2.8.17/6380/redis-6380.conf
5.4测试主从 在主redis中存数据 cd /usr/local/redis/redis-2.8.17/src ./redis-cli -h 127.0.0.1 -p 6379 auth system set foo test ctrl+c退出 在从redis中取数据 ./redis-cli -h 127.0.0.1 -p 6380 get foo
6.安装lua-resty-redis
从https://github.com/openresty/lua-resty-redis.git下载lua-resty-redis-master后解压 将lib包安装到lua库 cd lua-resty-redis-master
make && make install
安装完成之后在/usr/local/lib/lua/resty里面会有redis.lua
7.修改nginx配置文件cd /usr/local/nginx/conf vim nginx.conf 7.1 http内添加 lua_package_path "/usr/local/lib/lua/?.lua;;"; 7.2 server listen改为 9080; 7.3 server 内添加 location /lua/set { default_type 'text/plain'; content_by_lua_file conf/lua/setKeyValue.lua; } location /lua/get { default_type 'text/plain'; content_by_lua_file conf/lua/getKey.lua; }
完整配置文件nginx.cnof:
worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; lua_package_path "/usr/local/lib/lua/?.lua;;"; sendfile on; keepalive_timeout 65; server { listen 9080; server_name localhost; location / { root html; index index.html index.htm; } location /lua/set { default_type 'text/plain'; content_by_lua_file conf/lua/setKeyValue.lua; } location /lua/get { default_type 'text/plain'; content_by_lua_file conf/lua/getKey.lua; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } }
8.编写content_by_lua_file对应的lua脚本8.1 #对应nginx中的配置: content_by_lua_file conf/lua/setKeyValue.lua; cd /usr/local/nginx/conf mkdir lua cd lua vim setKeyValue.lua
--receive request params local request_method = ngx.var.request_method local args = nil local key = nil local value = nil --获取参数的值 if "GET" == request_method then args = ngx.req.get_uri_args() elseif "POST" == request_method then ngx.req.read_body() args = ngx.req.get_post_args() end key = args["key"] value = args["value"] --connect redis local redis = require "resty.redis" local cache = redis.new() local ok, err = cache.connect(cache, '127.0.0.1', '6379') cache:set_timeout(60000) if not ok then ngx.say("failed to connect:", err) return end -- 请注意这里 auth 的调用过程 -- check password local count count, err = cache:get_reused_times() if 0 == count then ok, err = cache:auth("system") if not ok then ngx.say("failed to auth: ", err) return end elseif err then ngx.say("failed to get reused times: ", err) return end local res, err = cache:set(key, value) if not res then ngx.say("failed to set "..key..": ", err) return end if res == ngx.null then ngx.say(key.." not found.") return end ngx.say("set redis value >>> "..key..": ", res) local ok, err = cache:close() if not ok then ngx.say("failed to close:", err) return end
8.2 #对应nginx中的配置: content_by_lua_file conf/lua/getKey.lua; vim getKey.lua getKey.lua代码:
--receive request params local request_method = ngx.var.request_method local args = nil local key = nil local value = nil --获取参数的值 if "GET" == request_method then args = ngx.req.get_uri_args() elseif "POST" == request_method then ngx.req.read_body() args = ngx.req.get_post_args() end key = args["key"] value = args["value"] --connect redis local redis = require "resty.redis" local cache = redis.new() local ok, err = cache.connect(cache, '127.0.0.1', '6380') cache:set_timeout(60000) if not ok then ngx.say("failed to connect:", err) return end local res, err = cache:get(key) if not res then ngx.say("failed to get "..key..": ", err) return end if res == ngx.null then ngx.say(key.." not found.") return end ngx.say("get from redis >>> "..key..": ", res) local ok, err = cache:close() if not ok then ngx.say("failed to close:", err) return end
9.开启端口映射(如果不是安装在虚拟机上的不需要此步骤)9.1开启虚拟机端口映射:
9.2开放9080端口的防火墙(--permanent永久生效,没有此参数重启后失效): firewall-cmd --zone=public --add-port=9080/tcp --permanent
10.重新启动nginxcd /usr/local/nginx/sbin ./nginx 11.查看效果
存值 -- 访问网址并传参: http://localhost:9080/lua/set?key=foo&value=test1
取值 -- 访问网址并传参: http://localhost:9080/lua/get?key=foo
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