apisix/doc/plugins/fault-injection.md

• 中文

Name

Fault injection plugin, this plugin can be used with other plugins and will be executed before other plugins. The abort attribute will directly return the user-specified http code to the client and terminate the subsequent plugins. The delay attribute will delay a request and execute subsequent plugins.

Attributes

Name	Type	Requirement	Default	Valid	Description
abort.http_status	integer	required		[200, ...]	user-specified http code returned to the client.
abort.body	string	optional			response data returned to the client. Nginx varialbe can be used inside, like client addr: $remote_addr\n
abort.percentage	integer	optional		[0, 100]	percentage of requests to be aborted.
delay.duration	number	required			delay time (can be decimal).
delay.percentage	integer	optional		[0, 100]	percentage of requests to be delayed.

Note: One of abort and delay must be specified.

How To Enable

Enable the plugin

1: enable the fault-injection plugin for a specific route and specify the abort attribute：

curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "plugins": {
       "fault-injection": {
           "abort": {
              "http_status": 200,
              "body": "Fault Injection!"
           }
       }
    },
    "upstream": {
       "nodes": {
           "127.0.0.1:1980": 1
       },
       "type": "roundrobin"
    },
    "uri": "/hello"
}'

Test plugin：

$ curl http://127.0.0.1:9080/hello -i
HTTP/1.1 200 OK
Date: Mon, 13 Jan 2020 13:50:04 GMT
Content-Type: text/plain
Transfer-Encoding: chunked
Connection: keep-alive
Server: APISIX web server

Fault Injection!

http status is 200 and the response body is "Fault Injection! " indicate that the plugin is enabled.

2: Enable the fault-injection plugin for a specific route and specify the delay attribute:

curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "plugins": {
       "fault-injection": {
           "delay": {
              "duration": 3
           }
       }
    },
    "upstream": {
       "nodes": {
           "127.0.0.1:1980": 1
       },
       "type": "roundrobin"
    },
    "uri": "/hello"
}'

Test plugin：

$ time curl http://127.0.0.1:9080/hello -i
HTTP/1.1 200 OK
Content-Type: application/octet-stream
Content-Length: 6
Connection: keep-alive
Server: APISIX web server
Date: Tue, 14 Jan 2020 14:30:54 GMT
Last-Modified: Sat, 11 Jan 2020 12:46:21 GMT

hello

real    0m3.034s
user    0m0.007s
sys     0m0.010s

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": {
            "127.0.0.1:1980": 1
        }
    }
}'

The plugin has been disabled now.