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- [中文 ](../zh-cn/plugins/skywalking.md )
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# Summary
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- [**Name** ](#Name )
- [**Attributes** ](#Attributes )
- [**How To Enable** ](#How-To-Enable )
- [**Test Plugin** ](#Test-Plugin )
- [**Run Skywalking Example** ](#Run-Skywalking-Example )
- [**Disable Plugin** ](#Disable-Plugin )
- [**Upstream services(Code With SpringBoot)** ](#Upstream-services(Code-With-SpringBoot ))
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## Name
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[**Skywalking** ](https://github.com/apache/skywalking ) is an OpenTracing plugin.\
The skywalking server can supports both http and grpc protocols. The APISIX client only support http protocols.
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## Attributes
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| Name | Type | Requirement | Default | Valid | Description |
| ------------ | ------ | ----------- | -------- | ------------ | -------------------------------------------------------------------- |
| sample_ratio | number | required | 1 | [0.00001, 1] | the ratio of sample |
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## How To Enable
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First of all, enable the skyWalking plugin in the `config.yaml` :
```
# Add this in config.yaml
plugins:
- ... # plugin you need
- skywalking
```
Then reload APISIX, a background timer will be created to report data to skywalking server.
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Here's an example, enable the skywalking plugin on the specified route:
```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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{
"methods": ["GET"],
"uris": [
"/uid/*"
],
"plugins": {
"skywalking": {
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"sample_ratio": 1
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}
},
"upstream": {
"type": "roundrobin",
"nodes": {
"10.110.149.175:8089": 1
}
}
}'
```
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You can open dashboard with a browser:`http://127.0.0.1:9080/apisix/dashboard/`, to complete the above operation through the web interface, first add a route:\
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![ ](../images/plugin/skywalking-1.png )\
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Then add skywalking plugin:\
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![ ](../images/plugin/skywalking-2.png )
## How to set endpoint
We can set the endpoint by specified the configuration in `conf/config.yaml` .
| Name | Type | Default | Description |
| ------------ | ------ | -------- | -------------------------------------------------------------------- |
| service_name | string | "APISIX" | service name for skywalking reporter |
|service_instance_name|string|"APISIX Instance Name" | service instance name for skywalking reporter |
| endpoint | string | "http://127.0.0.1:12800" | the http endpoint of Skywalking, for example: http://127.0.0.1:12800 |
Here is an example:
```yaml
plugin_attr:
skywalking:
service_name: APISIX
service_instance_name: "APISIX Instance Name"
endpoint_addr: http://127.0.0.1:12800
```
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## Test Plugin
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### Run Skywalking Example
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#### e.g.
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1. Run Skywalking Server:
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- By default, use H2 storage, start skywalking directly
```shell
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sudo docker run --name skywalking -d -p 1234:1234 -p 11800:11800 -p 12800:12800 --restart always apache/skywalking-oap-server
```
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- Of Course, you can use Elasticsearch storage
1. Firstly, you should install Elasticsearch:
```shell
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sudo docker run -d --name elasticsearch -p 9200:9200 -p 9300:9300 --restart always -e "discovery.type=single-node" elasticsearch:6.7.2
```
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2. You can install ElasticSearch management page: elasticsearch-hq(Optional)
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```shell
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sudo docker run -d --name elastic-hq -p 5000:5000 --restart always elastichq/elasticsearch-hq
```
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3. Run skywalking server:
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```shell
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sudo docker run --name skywalking -d -p 1234:1234 -p 11800:11800 -p 12800:12800 --restart always --link elasticsearch:elasticsearch -e SW_STORAGE=elasticsearch -e SW_STORAGE_ES_CLUSTER_NODES=elasticsearch:9200 apache/skywalking-oap-server
```
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2. Skywalking WebUI:
1. Run SkyWalking webUI Server:
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```shell
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sudo docker run --name skywalking-ui -d -p 8080:8080 --link skywalking:skywalking -e SW_OAP_ADDRESS=skywalking:12800 --restart always apache/skywalking-ui
```
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2. Open the webUI of skywalking:
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You can open dashboard with a browser: http://10.110.149.175:8080. It will be a successful install as follow:
![ ](../images/plugin/skywalking-3.png )
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3. Test:
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- Access to upstream services through access apisix:
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```bash
$ curl -v http://10.110.149.192:9080/uid/12
HTTP/1.1 200 OK
OK
...
```
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- Open the webUI of skyWalking:
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```shell
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http://10.110.149.175:8080/
```
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You can see the topology of all service\
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![ ](../../doc/images/plugin/skywalking-4.png )\
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You can also see the tracer of all service\
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![ ](../../doc/images/plugin/skywalking-5.png )
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## Disable Plugin
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When you want to disable the skyWalking plugin on a route/service, it is very simple,
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you can delete the corresponding json configuration in the plugin configuration,
no need to restart the service, it will take effect immediately:
```shell
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$ curl http://127.0.0.1:2379/v2/keys/apisix/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d value='
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{
"methods": ["GET"],
"uris": [
"/uid/*"
],
"plugins": {
},
"upstream": {
"type": "roundrobin",
"nodes": {
"10.110.149.175:8089": 1
}
}
}'
```
The skywalking plugin has been disabled now. It works for other plugins.
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If you want to disable skywalking plugin totally, for example, stop the background report timer,
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you need to comment out in the `config.yaml` :
```yaml
plugins:
- ... # plugin you need
#- skywalking
```
And then reload APISIX.
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## Upstream services(Code With SpringBoot)
```java
package com.lenovo.ai.controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;
/**
* @author cyxinda
* @create 2020-05-29 14:02
* @desc skywalking test controller
** /
@RestController
public class TestController {
@RequestMapping ("/uid/{count}")
public String getUidList(@PathVariable("count") String countStr, HttpServletRequest request) {
System.out.println("counter:::::-----"+countStr);
return "OK";
}
}
```
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Configuring the skywalking agent, when starting the service.
update the file of agent/config/agent.config
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```shell
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agent.service_name=yourservername
collector.backend_service=10.110.149.175:11800
```
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Run the script:
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```shell
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nohup java -javaagent:/root/skywalking/app/agent/skywalking-agent.jar \
-jar /root/skywalking/app/app.jar \
--server.port=8089 \
2>& 1 > /root/skywalking/app/logs/nohup.log &
```