feat(sermant-springboot-registry): 添加 Nacos 注册中心支持

- 新增 NacosRegisterConfig 类用于配置 Nacos 相关参数
- 实现 NacosDiscoveryClient 类以支持 Nacos服务发现和注册
- 添加 NacosServiceManager 类用于管理 Nacos 服务
- 实现 NacosInstanceListenable 类以监听 Nacos 实例变化
- 新增 NacosWeightRandomRule 类用于 Nacos 权重随机负载均衡
- 更新配置文件和资源文件以支持 Nacos

Signed-off-by: xiaozhao <[email protected]>

sermant-plugins/sermant-springboot-registry/config/config.yaml

@@ -7,6 +7,8 @@ sermant.springboot.registry:
   realmName: www.domain.com
   # Whether to enable traffic statistics, after it is enabled, the traffic entering the plug-in will be printed every time
   enableRequestCount: false
+  # The type of the registry center, currently supports NACOS and ZOOKEEPER
+  registryCenterType: ZOOKEEPER
 
 sermant.springboot.registry.lb:
   # The load balancer type currently supports RoundRobin、Random、WeightedResponseTime、
@@ -28,3 +30,21 @@ sermant.springboot.registry.lb:
   # For retry scenarios, for {@link java.util.concurrent.TimeoutException}, whether you need to retry, which is enabled
   # by default, and this timeout is mostly used in asynchronous scenarios, such as Future, MinimalHttpAsyncClient
   enableTimeoutExRetry: true
+
+nacos.config:
+  # Whether to enable authentication
+  enableAuth: false
+  # nacos verifies accounts
+  username: ""
+  # nacos verifies password need encrypts
+  password: ""
+  # Specify the AES privateKey that encrypts and decrypts the password
+  privateKey: ""
+  # Namespace, the nacos configuration creates the id value of the namespace
+  namespace: ""
+  # Service instance weight value
+  weight: 1
+  # Cluster name
+  clusterName: DEFAULT
+  # Whether it is a temporary node. The value can be true or false
+  ephemeral: true

sermant-plugins/sermant-springboot-registry/springboot-registry-plugin/src/main/java/io/sermant/discovery/config/DiscoveryPluginConfig.java

@@ -42,6 +42,11 @@ public class DiscoveryPluginConfig implements PluginConfig {
      */
     private boolean enableRegistry = true;
 
+    /**
+     * Registry type, currently supports NACOS and ZOOKEEPER;
+     */
+    private RegisterType registerType = RegisterType.ZOOKEEPER;
+
     public boolean isEnableRegistry() {
         return enableRegistry;
     }
@@ -65,4 +70,12 @@ public boolean isEnableRequestCount() {
     public void setEnableRequestCount(boolean enableRequestCount) {
         this.enableRequestCount = enableRequestCount;
     }
+
+    public RegisterType getRegisterType() {
+        return registerType;
+    }
+
+    public void setRegisterType(RegisterType registerType) {
+        this.registerType = registerType;
+    }
 }

sermant-plugins/sermant-springboot-registry/springboot-registry-plugin/src/main/java/io/sermant/discovery/config/LbConfig.java

@@ -69,11 +69,6 @@ public class LbConfig implements PluginConfig {
      */
     private String registryAddress = "127.0.0.1:2181";
 
-    /**
-     * Registry type, currently only ZK is supported
-     */
-    private String registryCenterType = "Zookeeper";
-
     /**
      * When it is enabled, if other registries are the same as the registries of this plugin and are registered to the
      * registry at the same time, the registries that are not registered by the plugin will be automatically excluded
@@ -309,14 +304,6 @@ public void setOnlyCurRegisterInstances(boolean onlyCurRegisterInstances) {
         this.onlyCurRegisterInstances = onlyCurRegisterInstances;
     }
 
-    public String getRegistryCenterType() {
-        return registryCenterType;
-    }
-
-    public void setRegistryCenterType(String registryCenterType) {
-        this.registryCenterType = registryCenterType;
-    }
-
     public String getZkServerVersion() {
         return zkServerVersion;
     }