本文实例讲述了node解析修改nginx配置文件操作。分享给大家供大家参考,具体如下:主要是
本文实例讲述了node解析修改nginx配置文件操作。分享给大家供大家参考,具体如下:
主要是通过nginx-conf这个工具。
git地址:https://github.com/tmont/nginx-conf
具体用法:
npm install -S nginx-conf 安装工具
var NginxConfFile = require('nginx-conf').NginxConfFile;
// 这个api提供了node读写conf文件的功能
NginxConfFile.create('/etc/nginx.conf', function(err, conf) {
if (err) {
console.log(err);
return;
}
// 通过_value的方式读取每一个配置的值
console.log(conf.nginx.user._value); //www www
console.log(conf.nginx.http.server.listen._value); //one.example.com
//模块中有多个子模块,比如server中配置了多个location,通过数组下标的方式访问
console.log(conf.nginx.http.server.location[3].root._value); // /spool/www
//修改配置
//create api是同步修改文件的,对于配置的修改和删除会同步反映到磁盘中
conf.on('flushed', function() {
console.log('finished writing to disk');
});
//listen to the flushed event to determine when the new file has been flushed to disk
conf.nginx.events.connections._value = 1000;
// 这个api的用途是当配置改变时不写到磁盘中
conf.die('/etc/nginx.conf');
conf.nginx.events.connections._value = 2000; //change remains local, not in /etc/nginx.conf
// 将内存中的配置写到另一个文件中
conf.live('/etc/nginx.conf.bak');
// 强行将内存中的配置刷到磁盘中
conf.flush();
// 增加和移除指令 通过 _add 和 _remove
conf.nginx.http._add('add_header', 'Cache-Control max-age=315360000, public');
console.log(conf.nginx.http.add_header._value); //Cache-Control max-age=315360000, public
conf.nginx.http._add('add_header', 'X-Load-Balancer lb-01');
conf.nginx.http._add('add_header', 'X-Secure true');
console.log(conf.nginx.http.add_header[0]._value); //Cache-Control max-age=315360000, public
console.log(conf.nginx.http.add_header[1]._value); //X-Load-Balancer lb-01
console.log(conf.nginx.http.add_header[2]._value); //X-Secure true
conf.nginx.http._remove('add_header'); //removes add_header[0]
conf.nginx.http._remove('add_header', 1); //removes add_header[1]
//如果只有一个带有名称的指令,会被被展开成一个属性,通过数组下表访问的将是undefined
console.log(conf.nginx.http.add_header._value); //X-Load-Balancer lb-01
console.log(conf.nginx.http.add_header[0]); //undefined
// 增加一个新的模块
conf.nginx.http._add('server');
conf.nginx.http.server._add('listen', '80');
//that'll create something like this:
/*
server {
listen 80;
}
*/
// 存在多个模块是通过数组方式访问
conf.nginx.http._add('server');
conf.nginx.http.server[1]._add('listen', '443');
/*
server {
listen 80;
}
server {
listen 443;
}
*/
// blocks with values:
conf.nginx.http.server[1]._add('location', '/');
conf.nginx.http.server[1].location._add('root', '/var/www/example.com');
/*
server {
location / {
root /var/www/example.com;
}
}
*/
// lua blocks also work, but you can't put a mismatched "{" or "}" in a comment!
conf.nginx.http.location._addVerbatimBlock('rewrite_by_lua_block', '{\n\
ngx.say("this is a lua block!")\n\
res = ngx.location.capture("/memc",\n\
{ args = { cmd = "incr", key = ngx.var.uri } }\n\
)\n\
}');
});
此工具同样支持对注释的修改
// 读取use配置上的注释,以数组的方式返回
console.log(conf.nginx.events.use._comments.length); // 1
console.log(conf.nginx.events.use._comments[0]); // use [ kqueue | rtsig | epoll | /dev/poll | select | poll ];
// 删除注释
conf.nginx.events.use._comments.splice(0, 1);
// 添加注释
conf.nginx.event.use._comments.push('my new comment');
console.log(conf.nginx.events.use._comments.length); // 1
console.log(conf.nginx.events.use._comments[0]); //my new comment
// 修改注释
conf.nginx.event.use._comments[0] = 'updated';
console.log(conf.nginx.events.use._comments[0]); //updated
注意特殊情况
foo #comment
bar;
console.log(conf.nginx.foo._value); //bar
console.log(conf.nginx.foo._comments[0]); //comment
But if the comment comes after:
foo bar;
#comment
console.log(conf.nginx.foo._value); //bar
console.log(conf.nginx.foo._comments.length); //0
希望本文所述对大家node.js程序设计有所帮助。
node 解析修改 ngix 配置文件