| --- |
| title: proxy-mirror |
| keywords: |
| - APISIX |
| - Plugin |
| - Proxy Mirror |
| - proxy-mirror |
| description: This document contains information about the Apache APISIX proxy-mirror Plugin. |
| --- |
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| |
| ## Description |
| |
| The `proxy-mirror` Plugin can be used to mirror client requests. |
| |
| :::note |
| |
| The response returned by the mirror request is ignored. |
| |
| ::: |
| |
| ## Attributes |
| |
| | Name | Type | Required | Default | Valid values | Description | |
| |--------------|--------|----------|---------|--------------|---------------------------------------------------------------------------------------------------------------------------| |
| | host | string | True | | | Address of the mirror service. It needs to contain the scheme but without the path. For example, `http://127.0.0.1:9797`. | |
| | path | string | False | | | Path of the mirror request. If unspecified, current path will be used. | |
| | sample_ratio | number | False | 1 | [0.00001, 1] | Ratio of the requests that will be mirrored. | |
| |
| You can customize the proxy timeouts for the mirrored sub-requests by configuring the `plugin_attr` key in your configuration file (`conf/config.yaml`). This can be used for mirroring traffic to a slow backend. |
| |
| ```yaml title="conf/config.yaml" |
| plugin_attr: |
| proxy-mirror: |
| timeout: |
| connect: 2000ms |
| read: 2000ms |
| send: 2000ms |
| ``` |
| |
| | Name | Type | Default | Description | |
| |---------|--------|---------|-------------------------------------------| |
| | connect | string | 60s | Connect timeout to the mirrored Upstream. | |
| | read | string | 60s | Read timeout to the mirrored Upstream. | |
| | send | string | 60s | Send timeout to the mirrored Upstream. | |
| |
| ## Enabling the Plugin |
| |
| You can enable the Plugin on a specific Route as shown below: |
| |
| ```shell |
| curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d ' |
| { |
| "plugins": { |
| "proxy-mirror": { |
| "host": "http://127.0.0.1:9797" |
| } |
| }, |
| "upstream": { |
| "nodes": { |
| "127.0.0.1:1999": 1 |
| }, |
| "type": "roundrobin" |
| }, |
| "uri": "/hello" |
| }' |
| ``` |
| |
| ## Example usage |
| |
| Once you have configured the Plugin as shown above, the requests made will be mirrored to the configured host. |
| |
| ```shell |
| curl http://127.0.0.1:9080/hello -i |
| ``` |
| |
| ```shell |
| HTTP/1.1 200 OK |
| Content-Type: application/octet-stream |
| Content-Length: 12 |
| Connection: keep-alive |
| Server: APISIX web server |
| Date: Wed, 18 Mar 2020 13:01:11 GMT |
| Last-Modified: Thu, 20 Feb 2020 14:21:41 GMT |
| |
| hello world |
| ``` |
| |
| :::tip |
| |
| For testing you can create a test server by running: |
| |
| ```shell |
| python -m http.server 9797 |
| ``` |
| |
| ::: |
| |
| ## Disable Plugin |
| |
| To disable the `proxy-mirror` Plugin, you can delete the corresponding JSON configuration from the Plugin configuration. APISIX will automatically reload and you do not have to restart for this to take effect. |
| |
| ```shell |
| curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d ' |
| { |
| "uri": "/hello", |
| "plugins": {}, |
| "upstream": { |
| "type": "roundrobin", |
| "nodes": { |
| "127.0.0.1:1999": 1 |
| } |
| } |
| }' |
| ``` |