2019-10-31 09:27:28 +08:00
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2019-09-26 15:08:21 +08:00
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[English](stream-proxy.md)
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# Stream 代理
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众多的闻名的应用和服务，像 LDAP、 MYSQL 和 RTMP ，选择 TCP 作为通信协议。 但是像 DNS、 syslog 和 RADIUS 这类非事务性的应用，他们选择了
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UDP协议。
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APISIX 可以对 TCP/UDP 协议进行代理并实现动态负载均衡。 在 nginx 世界，称 TCP/UDP 代理为 stream 代理，在 APISIX 这里我们也遵循了这个声明.
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## 如何开启 Stream 代理?
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2019-10-31 09:27:28 +08:00
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在 `conf/config.yaml` 配置文件设置 `stream_proxy` 选项， 指定一组需要进行动态代理的IP地址。默认情况不开启stream代理。
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2019-09-26 15:08:21 +08:00
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```
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apisix:
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stream_proxy: # TCP/UDP proxy
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tcp: # TCP proxy address list
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- 9100
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- 127.0.0.1:9101
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udp: # UDP proxy address list
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- 9200
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- 127.0.0.1:9211
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```
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## 如何设置 route ?
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简例如下:
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```shell
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curl http://127.0.0.1:9080/apisix/admin/stream_routes/1 -X PUT -d '
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{
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"remote_addr": "127.0.0.1",
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"upstream": {
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"nodes": {
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"127.0.0.1:1995": 1
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},
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"type": "roundrobin"
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}
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}'
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```
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2019-10-31 09:27:28 +08:00
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例子中 APISIX 对客户端IP为 `127.0.0.1` 的请求代理转发到上游主机 `127.0.0.1:1995`。
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2019-09-26 15:08:21 +08:00
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更多用例，请参照 [test case](../t/stream-node/sanity.t).
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## 更多限制选项
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我们可以添加更多的选项来匹配 route ，例如
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```shell
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curl http://127.0.0.1:9080/apisix/admin/stream_routes/1 -X PUT -d '
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{
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"server_addr": "127.0.0.1",
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"server_port": 2000,
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"upstream": {
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"nodes": {
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"127.0.0.1:1995": 1
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},
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"type": "roundrobin"
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}
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}'
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```
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例子中 APISIX 把上游地址 `127.0.0.1:1995` 代理成地址为 `127.0.0.1`, 端口为 `2000`
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