2019-10-31 09:27:28 +08:00
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<!--
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# limitations under the License.
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#
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-->
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2020-08-12 22:54:11 +08:00
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- [English](../../plugins/mqtt-proxy.md)
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2019-09-23 06:13:06 +08:00
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# 目录
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- [**名字**](#名字)
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- [**属性**](#属性)
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- [**如何启用**](#如何启用)
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- [**禁用插件**](#禁用插件)
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## 名字
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`mqtt-proxy` 只工作在流模式，它可以帮助你根据 MQTT 的 `client_id` 实现动态负载均衡。
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2019-11-29 08:54:59 +08:00
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这个插件支持 MQTT [3.1.* ]( http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html )及[5.0]( https://docs.oasis-open.org/mqtt/mqtt/v5.0/mqtt-v5.0.html )两个协议。
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2019-09-23 06:13:06 +08:00
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## 属性
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* `protocol_name`: 必选，协议名称，正常情况下应为“ MQTT” 。
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* `protocol_level`: 必选，协议级别，MQTT `3.1.*` 应为 “4” ，MQTT `5.0` 应该是“5”。
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* `upstream.ip`: 必选，将当前请求转发到的上游的 IP 地址，
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* `upstream.port`: 必选，将当前请求转发到的上游的 端口，
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2020-09-23 08:11:27 +08:00
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| 名称 | 类型 | 必选项 | 默认值 | 有效值 | 描述 |
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| -------------- | ------- | ------ | ------ | ------ | ------------------------------------------------------ |
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| protocol_name | string | 必须 | | | 协议名称，正常情况下应为“ MQTT” |
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| protocol_level | integer | 必须 | | | 协议级别，MQTT `3.1.*` 应为 `4` ，MQTT `5.0` 应是`5`。 |
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| upstream.ip | string | 必须 | | | 将当前请求转发到的上游的 IP 地址 |
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| upstream.port | number | 必须 | | | 将当前请求转发到的上游的端口 |
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2019-09-23 06:13:06 +08:00
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## 如何启用
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2019-11-29 08:54:59 +08:00
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为了启用该插件，需要先在 `conf/config.yaml` 中首先开启 stream_proxy 配置，比如下面配置代表监听 9100 TCP 端口：
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```yaml
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...
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router:
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http: 'radixtree_uri'
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ssl: 'radixtree_sni'
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stream_proxy: # TCP/UDP proxy
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tcp: # TCP proxy port list
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- 9100
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dns_resolver:
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...
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```
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然后把 MQTT 请求发送到 9100 端口即可。
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2019-09-23 06:13:06 +08:00
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下面是一个示例，在指定的 route 上开启了 mqtt-proxy 插件:
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```shell
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2020-11-24 16:51:47 +08:00
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curl http://127.0.0.1:9180/apisix/admin/stream_routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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2019-09-23 06:13:06 +08:00
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{
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"remote_addr": "127.0.0.1",
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"plugins": {
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"mqtt-proxy": {
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"protocol_name": "MQTT",
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"protocol_level": 4,
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"upstream": {
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"ip": "127.0.0.1",
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"port": 1980
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}
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}
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}
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}'
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```
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#### 禁用插件
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当你想去掉插件的时候，很简单，在插件的配置中把对应的 json 配置删除即可，无须重启服务，即刻生效：
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```shell
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$ curl http://127.0.0.1:2379/v2/keys/apisix/stream_routes/1 -X DELETE
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```
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2019-10-31 09:27:28 +08:00
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现在就已经移除了 mqtt-proxy 插件了。
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