本文详细介绍了如何在FreeBSD8.1环境下，通过安装并配置nginx、spawn-fcgi、wsapi.fcgi及Lua脚本，实现Lua+nginx+fastcgi的高效集成，包括安装步骤、配置nginx.conf、启动服务及解决相关问题。通过实例演示了如何部署和运行简单的Lua程序，提供了完整的部署流程和常见问题解决方案。
nginx, web server
spawn-fcgi, 一个 fastcgi wrapper
wsapi.fcgi, WSAPI是针对lua的web标准，wsapi.fcgi就是把fcgi请求变成wsapi协议。
FreeBSD 8.1
安装 wsapi-fcgi
/usr/ports/www/fcgi
# pkg_add -r fcgi-devkit
# luarocks install wsapi-fcgi
安装 spawn-fcgi
/usr/ports/www/spawn-fcgi
# pkg_add -r spawn-fcgi
启动 spawn-fcgi
spawn-fcgi -F 1 -s /var/run/nginx-fcgi.sock -P /var/run/nginx-fcgi.pid -U nobody -- /usr/local/bin/wsapi.fcgi
安装nginx
/usr/ports/devel/pcre
# pkg_add -r pcre
下载 nginx-0.8.54
# ./configure && gmake install
---------------- nginx.conf ----------------
worker_processes 1;
events {
worker_connections 1024;
}
http {
server {
listen 8080;
server_name localhost;
location / {
fastcgi_pass unix:/var/run/nginx-fcgi.sock;
fastcgi_index hello.lua;
fastcgi_param SCRIPT_FILENAME /home/kasicass/sandbox/kepler/wsapi$fastcgi_script_name;
}
}
}
-----------------------------------------------
启动 nginx
# /usr/local/nginx/sbin/nginx
WSAPI Hello World Program
------------------ hello.lua ---------------------
#!/usr/bin/env wsapi.cgi
module(..., package.seeall)
function run(wsapi_env)
local headers = { ["Content-type"] = "text/html" }
local function hello_text()
coroutine.yield("<html><body>")
coroutine.yield("<p>Hello WSAPI!</p>")
coroutine.yield("<p>PATH_INFO: " .. wsapi_env.PATH_INFO .. "</p>")
coroutine.yield("<p>SCRIPT_NAME: " .. wsapi_env.SCRIPT_NAME .. "</p>")
coroutine.yield("</body></html>")
end
return 200, headers, coroutine.wrap(hello_text)
end
---------------------------------------------------
然后通过浏览器访问：
http://127.0.0.1/hello.lua
碰到的问题
spawn-fcgi 中的 "-U nobody" 参数，让 spawn-fcgi 以 nobody 权限启动。否则 nginx worker (nobody权限) 无法正确 connect()。
nginx.conf 配置中 "fastcgi_index hello.lua;" 让 127.0.0.1/ 的访问变成 127.0.0.1/hello.lua
参考资料
老外的一篇 lua + nginx + fastcgi 的配置资料
nginx + fastcgi + spawn-fcgi + mysql
nginx + fastcgi
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