执行shell命令

安装 sockproc

# 安装sockproc
git clone https://github.com/juce/sockproc.git
cd sockproc/
gcc -o sockproc ./sockproc.c
# 创建Unix套接字，提供给lua的shell库连接
./sockproc /tmp/shell.sock
chmod 0666 /tmp/shell.sock

安装 lua-resty-shell

git clone https://github.com/juce/lua-resty-shell
# 复制库到openresty下
cp lua-resty-shell/lib/resty/shell.lua /usr/local/openresty/lualib/resty/

修改nginx配置文件

• vi /usr/local/openresty/nginx/conf/nginx.conf ，在 server 节点下加入如下内容：

location /shell_test {
    content_by_lua_block {
        local shell = require("resty.shell")
        local args = {
          socket = "unix:/tmp/shell.sock",
        }
        local status, out, err = shell.execute("uname -a", args)
        ngx.header.content_type = "text/plain"
        ngx.say("Hello from:\n" .. out)
    }        
}

• 重启 openresty - /usr/local/openresty/bin/openresty -s reload
• 访问地址 /shell_test