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6.5.2 Arklet 技术文档

Overview

概述

Arklet 提供了 SOFAArk 基座和模块的运维接口，通过 Arklet 可以轻松灵活的进行 Ark Biz 的发布和运维。

Arklet 内部由 ArkletComponent 构成

ApiClient: The core components responsible for interacting with the outside world
ApiClient: 负责与外界交互的核心组件
CommandService: Arklet 暴露能力指令定义和扩展
OperationService: Ark Biz 与 SOFAArk 交互，增删改查，封装基础能力
HealthService: 基于基座、模块系统等指标统计健康和稳定性

这些组件之间的关联关系如下图 overview

当然，您也可以通过实现 ArkletComponent 接口来扩展 Arklet 的组件功能。

Command Extension

指令扩展

Arklet 通过外部暴露指令 API，通过每个 API 映射的 CommandHandler 内部处理指令。

CommandHandler 相关扩展属于 CommandService 组件统一管理

你可以通过继承 AbstractCommandHandler 来自定义扩展指令

内置指令 API

下面所有的指令 API 都是通过 POST(application/json) 请求格式访问 arklet

使用的是 http 协议，1238 端口

你可以通过设置 koupleless.arklet.http.port JVM 启动参数覆盖默认端口

查询支持的指令

URL: 127.0.0.1:1238/help
input sample:

{}

output sample:

{
    "code":"SUCCESS",
    "data":[
        {
            "desc":"query all ark biz(including master biz)",
            "id":"queryAllBiz"
        },
        {
            "desc":"list all supported commands",
            "id":"help"
        },
        {
            "desc":"uninstall one ark biz",
            "id":"uninstallBiz"
        },
        {
            "desc":"switch one ark biz",
            "id":"switchBiz"
        },
        {
            "desc":"install one ark biz",
            "id":"installBiz"
        }
    ]
}

安装一个模块

URL: 127.0.0.1:1238/installBiz
输入例子:

{
    "bizName": "test",
    "bizVersion": "1.0.0",
    // local path should start with file://, alse support remote url which can be downloaded
    "bizUrl": "file:///Users/jaimezhang/workspace/github/sofa-ark-dynamic-guides/dynamic-provider/target/dynamic-provider-1.0.0-ark-biz.jar"
}

输出例子(success):

{
  "code":"SUCCESS",
  "data":{
    "bizInfos":[
      {
        "bizName":"dynamic-provider",
        "bizState":"ACTIVATED",
        "bizVersion":"1.0.0",
        "declaredMode":true,
        "identity":"dynamic-provider:1.0.0",
        "mainClass":"io.sofastack.dynamic.provider.ProviderApplication",
        "priority":100,
        "webContextPath":"provider"
      }
    ],
    "code":"SUCCESS",
    "message":"Install Biz: dynamic-provider:1.0.0 success, cost: 1092 ms, started at: 16:07:47,769"
  }
}

输出例子(failed):

{
  "code":"FAILED",
  "data":{
    "code":"REPEAT_BIZ",
    "message":"Biz: dynamic-provider:1.0.0 has been installed or registered."
  }
}

卸载一个模块

URL: 127.0.0.1:1238/uninstallBiz
输入例子:

{
    "bizName":"dynamic-provider",
    "bizVersion":"1.0.0"
}

输出例子(success):

{
  "code":"SUCCESS"
}

输出例子(failed):

{
  "code":"FAILED",
  "data":{
    "code":"NOT_FOUND_BIZ",
    "message":"Uninstall biz: test:1.0.0 not found."
  }
}

切换一个模块

URL: 127.0.0.1:1238/switchBiz
输入例子:

{
    "bizName":"dynamic-provider",
    "bizVersion":"1.0.0"
}

输出例子:

{
  "code":"SUCCESS"
}

查询所有模块

URL: 127.0.0.1:1238/queryAllBiz
输入例子:

{}

输出例子:

{
  "code":"SUCCESS",
  "data":[
    {
      "bizName":"dynamic-provider",
      "bizState":"ACTIVATED",
      "bizVersion":"1.0.0",
      "mainClass":"io.sofastack.dynamic.provider.ProviderApplication",
      "webContextPath":"provider"
    },
    {
      "bizName":"stock-mng",
      "bizState":"ACTIVATED",
      "bizVersion":"1.0.0",
      "mainClass":"embed main",
      "webContextPath":"/"
    }
  ]
}

查询健康与状态信息

URL: 127.0.0.1:1238/health

查询所有健康与状态信息

输入信息:

{}

输出信息:

{
  "code": "SUCCESS",
  "data": {
    "healthData": {
      "jvm": {
        "max non heap memory(M)": -9.5367431640625E-7,
        "java version": "1.8.0_331",
        "max memory(M)": 885.5,
        "max heap memory(M)": 885.5,
        "used heap memory(M)": 137.14127349853516,
        "used non heap memory(M)": 62.54662322998047,
        "loaded class count": 10063,
        "init non heap memory(M)": 2.4375,
        "total memory(M)": 174.5,
        "free memory(M)": 37.358726501464844,
        "unload class count": 0,
        "total class count": 10063,
        "committed heap memory(M)": 174.5,
        "java home": "****\\jre",
        "init heap memory(M)": 64.0,
        "committed non heap memory(M)": 66.203125,
        "run time(s)": 34.432
      },
      "cpu": {
        "count": 4,
        "total used (%)": 131749.0,
        "type": "****",
        "user used (%)": 9.926451054656962,
        "free (%)": 81.46475495070172,
        "system used (%)": 6.249762806548817
      },
      "masterBizInfo": {
        "webContextPath": "/",
        "bizName": "bookstore-manager",
        "bizState": "ACTIVATED",
        "bizVersion": "1.0.0"
      },
      "pluginListInfo": [
        {
          "artifactId": "web-ark-plugin",
          "groupId": "com.alipay.sofa",
          "pluginActivator": "com.alipay.sofa.ark.web.embed.WebPluginActivator",
          "pluginName": "web-ark-plugin",
          "pluginUrl": "file:/****/2.2.3-SNAPSHOT/web-ark-plugin-2.2.3-20230901.090402-2.jar!/",
          "pluginVersion": "2.2.3-SNAPSHOT"
        },
        {
          "artifactId": "runtime-sofa-boot-plugin",
          "groupId": "com.alipay.sofa",
          "pluginActivator": "com.alipay.sofa.runtime.ark.plugin.SofaRuntimeActivator",
          "pluginName": "runtime-sofa-boot-plugin",
          "pluginUrl": "file:/****/runtime-sofa-boot-plugin-3.11.0.jar!/",
          "pluginVersion": "3.11.0"
        }
      ],
      "masterBizHealth": {
        "readinessState": "ACCEPTING_TRAFFIC"
      },
      "bizListInfo": [
        {
          "bizName": "bookstore-manager",
          "bizState": "ACTIVATED",
          "bizVersion": "1.0.0",
          "webContextPath": "/"
        }
      ]
    }
  }
}

查询系统健康与状态信息

输入例子:

{
  "type": "system",
  // [OPTIONAL] if metrics is null -> query all system health info
  "metrics": ["cpu", "jvm"]
}

输出例子:

{
  "code": "SUCCESS",
  "data": {
    "healthData": {
      "jvm": {...},
      "cpu": {...},
//      "masterBizHealth": {...}
    }
  }
}

查询模块健康与状态信息

输入例子:

{
  "type": "biz",
  // [OPTIONAL] if moduleName is null and moduleVersion is null -> query all biz
  "moduleName": "bookstore-manager",
  // [OPTIONAL] if moduleVersion is null -> query all biz named moduleName
  "moduleVersion": "1.0.0"
}

输出例子:

{
  "code": "SUCCESS",
  "data": {
    "healthData": {
      "bizInfo": {
        "bizName": "bookstore-manager",
        "bizState": "ACTIVATED",
        "bizVersion": "1.0.0",
        "webContextPath": "/"
      }
//      "bizListInfo": [
//        {
//          "bizName": "bookstore-manager",
//          "bizState": "ACTIVATED",
//          "bizVersion": "1.0.0",
//          "webContextPath": "/"
//        }
//      ]
    }
  }
}

查询插件健康与状态信息

输入例子:

{
  "type": "plugin",
  // [OPTIONAL] if moduleName is null -> query all biz
  "moduleName": "web-ark-plugin"
}

输出例子:

{
  "code": "SUCCESS",
  "data": {
    "healthData": {
      "pluginListInfo": [
        {
          "artifactId": "web-ark-plugin",
          "groupId": "com.alipay.sofa",
          "pluginActivator": "com.alipay.sofa.ark.web.embed.WebPluginActivator",
          "pluginName": "web-ark-plugin",
          "pluginUrl": "file:/****/web-ark-plugin-2.2.3-20230901.090402-2.jar!/",
          "pluginVersion": "2.2.3-SNAPSHOT"
        }
      ]
    }
  }
}

使用 Endpoint 来查询健康信息

使用 endpoint 来查询 k8s 模块的健康信息

** 默认配置 **

endpoints path: /
endpoints 服务端口: 8080

** http 结果码 **

HEALTHY(200): 所有健康指标都健康
UNHEALTHY(400): 至少有一个健康指标已经不健康
ENDPOINT_NOT_FOUND(404): 路径或参数不存在
ENDPOINT_PROCESS_INTERNAL_ERROR(500): 遇到异常

查询所有健康信息

url: 127.0.0.1:8080/arkletHealth
method: GET
输出例子

{   
    "healthy": true,
    "code": 200,    
    "codeType": "HEALTHY",    
    "data": {        
        "jvm": {...},        
        "masterBizHealth": {...},        
        "cpu": {...},        
        "masterBizInfo": {...},        
        "bizListInfo": [...],        
        "pluginListInfo": [...]    
    }
}

查询所有模块的健康信息

url: 127.0.0.1:8080/arkletHealth/{moduleType} (moduleType must in [‘biz’, ‘plugin’])
method: GET
输出例子

{   
   "healthy": true,
   "code": 200,    
   "codeType": "HEALTHY",    
   "data": {        
       "bizListInfo": [...],  
       // "pluginListInfo": [...]      
   }
}

查询单个模块的健康信息

url: 127.0.0.1:8080/arkletHealth/{moduleType}/moduleName/moduleVersion (moduleType must in [‘biz’, ‘plugin’])
method: GET
输出例子

{   
   "healthy": true,
   "code": 200,    
   "codeType": "HEALTHY",    
   "data": {        
       "bizInfo": {...},  
       // "pluginInfo": {...}      
   }
}