7 层 TCP 路由代理 ProxyMachine
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ProxyMachine 是一个简单的 7 层 TCP 路由代理,基于 EventMachine 构建,可使用 Ruby 语言配置路由规则。如果你需要将不同的请求内容转发到后端不同的服务器上,那么 ProxyMachine 非常适合你。
ProxyMachine 主要为 Github 的集群架构而开发,每天可代理几百万请求,性能和内存占用表现良好。
安装:
$ gem install proxymachine -s http://gemcutter.org
使用方法:
Usage: proxymachine -c <config file> [-h <host>] [-p <port>]Options: -c, --config CONFIG Configuration file -h, --host HOST Hostname to bind. Default 0.0.0.0 -p, --port PORT Port to listen on. Default 5432
示例配置:
class GitRouter # Look at the routing table and return the correct address for +name+ # Returns "<host>:<port>" e.g. "ae8f31c.example.com:9418" def self.lookup(name) ... endend# Perform content-aware routing based on the stream data. Here, the# header information from the Git protocol is parsed to find the # username and a lookup routine is run on the name to find the correct# backend server. If no match can be made yet, do nothing with the# connection.proxy do |data| if data =~ %r{^....git-upload-pack /([\w\.\-]+)/[\w\.\-]+\000host=\w+\000} name = $1 { :remote => GitRouter.lookup(name) } else { :noop => true } endend