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110 lines
5.4 KiB
Markdown
110 lines
5.4 KiB
Markdown
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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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# http://www.apache.org/licenses/LICENSE-2.0
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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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- [English](../../plugins/proxy-rewrite.md)
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# 目录
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- [简介](#简介)
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- [属性](#属性)
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- [如何启用](#如何启用)
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- [测试插件](#测试插件)
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- [禁用插件](#禁用插件)
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## 简介
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proxy-rewrite 是上游代理信息重写插件，支持对 `scheme`、`uri`、`host` 等信息的重写。
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## 属性
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| Name | Type | Requirement | Default | Valid | Description |
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| --------- | ------------- | ----------- | ------- | ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| scheme | string | 可选 | "http" | ["http", "https"] | 不推荐使用。应该在 Upstream 的 scheme 字段设置上游的 scheme。
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| uri | string | 可选 | | | 转发到上游的新 `uri` 地址。 |
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| regex_uri | array[string] | 可选 | | | 转发到上游的新 `uri` 地址, 使用正则表达式匹配来自客户端的uri，当匹配成功后使用模板替换转发到上游的uri, 未匹配成功时将客户端请求的uri转发至上游。当`uri`和`regex_uri`同时存在时，`uri`优先被使用。例如：["^/iresty/(.*)/(.*)/(.*)","/$1-$2-$3"] 第一个元素代表匹配来自客户端请求的uri正则表达式，第二个元素代表匹配成功后转发到上游的uri模板。 |
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| host | string | 可选 | | | 转发到上游的新 `host` 地址，例如：`iresty.com` 。 |
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| headers | object | 可选 | | | 转发到上游的新`headers`，可以设置多个。头信息如果存在将重写，不存在则添加。想要删除某个 header 的话，把对应的值设置为空字符串即可。支持使用 Nginx 的变量，需要以 `$` 开头，如 `client_addr: $remote_addr` ：表示请求头 `client_addr` 为客户端IP。 |
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## 如何启用
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下面是一个示例，在指定的 route 上开启了 `proxy rewrite` 插件:
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```shell
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curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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{
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"methods": ["GET"],
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"uri": "/test/index.html",
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"plugins": {
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"proxy-rewrite": {
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"uri": "/test/home.html",
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"scheme": "http",
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"host": "iresty.com",
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"headers": {
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"X-Api-Version": "v1",
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"X-Api-Engine": "apisix",
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"X-Api-useless": ""
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}
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}
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},
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"upstream": {
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"type": "roundrobin",
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"nodes": {
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"127.0.0.1:80": 1
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}
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}
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}'
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```
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## 测试插件
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基于上述配置进行测试：
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```shell
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curl -X GET http://127.0.0.1:9080/test/index.html
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```
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发送请求，查看上游服务`access.log`，如果输出信息与配置一致：
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```
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127.0.0.1 - [26/Sep/2019:10:52:20 +0800] iresty.com GET /test/home.html HTTP/1.1 200 38 - curl/7.29.0 - 0.000 199 107
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```
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即表示 `proxy rewrite` 插件生效了。
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## 禁用插件
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当你想去掉 `proxy rewrite` 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://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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{
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"methods": ["GET"],
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"uri": "/test/index.html",
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"plugins": {},
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"upstream": {
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"type": "roundrobin",
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"nodes": {
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"127.0.0.1:80": 1
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}
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}
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}'
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```
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现在就已经移除了 `proxy rewrite` 插件了。其他插件的开启和移除也是同样的方法。
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