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141 lines
3.4 KiB
Markdown
141 lines
3.4 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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#
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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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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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-->
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[Chinese](fault-injection-cn.md)
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## Name
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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.
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## Attributes
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|Name |Requirement |Description|
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|------- |-----|------|
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|abort.http_status|required|user-specified http code returned to the client|
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|abort.body|optional|response data returned to the client|
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|delay.duration|required|delay time(can be decimal)|
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Note: `abort` and `delay` must have at least one.
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## How To Enable
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#### Enable the plugin
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1: enable the fault-injection plugin for a specific route and specify the abort attribute：
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```shell
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curl http://127.0.0.1:9080/apisix/admin/routes/1 -X PUT -d '
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{
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"plugins": {
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"fault-injection": {
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"abort": {
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"http_status": 200,
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"body": "Fault Injection!"
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}
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}
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},
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"upstream": {
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"nodes": {
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"127.0.0.1:1980": 1
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},
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"type": "roundrobin"
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},
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"uri": "/hello"
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}'
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```
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Test plugin：
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```shell
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$ curl http://127.0.0.1:9080/hello -i
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HTTP/1.1 200 OK
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Date: Mon, 13 Jan 2020 13:50:04 GMT
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Content-Type: text/plain
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Transfer-Encoding: chunked
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Connection: keep-alive
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Server: APISIX web server
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Fault Injection!
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```
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> http status is 200 and the response body is "Fault Injection! " indicate that the plugin is enabled.
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2: Enable the `fault-injection` plugin for a specific route and specify the `delay` attribute:
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```shell
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curl http://127.0.0.1:9080/apisix/admin/routes/1 -X PUT -d '
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{
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"plugins": {
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"fault-injection": {
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"delay": {
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"duration": 3
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}
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}
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},
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"upstream": {
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"nodes": {
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"127.0.0.1:1980": 1
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},
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"type": "roundrobin"
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},
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"uri": "/hello"
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}'
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```
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Test plugin：
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```shell
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$ time curl http://127.0.0.1:9080/hello -i
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HTTP/1.1 200 OK
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Content-Type: application/octet-stream
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Content-Length: 6
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Connection: keep-alive
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Server: APISIX web server
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Date: Tue, 14 Jan 2020 14:30:54 GMT
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Last-Modified: Sat, 11 Jan 2020 12:46:21 GMT
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hello
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real 0m3.034s
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user 0m0.007s
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sys 0m0.010s
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```
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## Disable Plugin
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Remove the corresponding JSON in the plugin configuration to disable the plugin immediately without restarting the service:
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```shell
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curl http://127.0.0.1:9080/apisix/admin/routes/1 -X PUT -d '
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{
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"uri": "/hello",
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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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"127.0.0.1:1980": 1
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}
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}
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}'
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```
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The plugin has been disabled now.
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