proxy-mirror

The proxy-mirror plugin, which provides the ability to mirror client requests.

Note: The response returned by the mirror request is ignored.

Attributes

Name	Type	Requirement	Default	Valid	Description
host	string	required			Specify a mirror service address, e.g. http://127.0.0.1:9797 (address needs to contain scheme: http or https, and without the path part)
sample_ratio	number	optional	1	[0.00001, 1]	the sample ratio that requests will be mirrored.

Examples

Enable the plugin

example 1: enable the proxy-mirror plugin for a specific route :

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"
}'

Test plugin：

$ curl http://127.0.0.1:9080/hello -i
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

Since the specified mirror address is 127.0.0.1:9797, so to verify whether this plugin is in effect, we need to confirm on the service with port 9797. For example, we can start a simple server: python -m SimpleHTTPServer 9797

Disable Plugin

Remove the corresponding JSON in the plugin configuration to disable the plugin immediately without restarting the service:

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
        }
    }
}'

The plugin has been disabled now.