fix invalid ai-proxy cluster (#1947)

Co-authored-by: Kent Dong <ch3cho@qq.com>

plugins/wasm-go/extensions/ai-proxy/provider/cluster.go

@@ -1,17 +0,0 @@
-package provider
-
-import "fmt"
-
-type plainCluster struct {
-	serviceName string
-	servicePort int64
-	hostName    string
-}
-
-func (c plainCluster) ClusterName() string {
-	return fmt.Sprintf("outbound|%d||%s", c.servicePort, c.serviceName)
-}
-
-func (c plainCluster) HostName() string {
-	return c.hostName
-}

plugins/wasm-go/extensions/ai-proxy/provider/context.go

@@ -95,10 +95,10 @@ func createContextCache(providerConfig *ProviderConfig) *contextCache {
 		return nil
 	}
 	fileUrlObj, _ := url.Parse(contextConfig.fileUrl)
-	cluster := plainCluster{
-		serviceName: contextConfig.serviceName,
-		servicePort: contextConfig.servicePort,
-		hostName:    fileUrlObj.Host,
+	cluster := wrapper.FQDNCluster{
+		FQDN: contextConfig.serviceName,
+		Port: contextConfig.servicePort,
+		Host: fileUrlObj.Host,
 	}
 	return &contextCache{
 		client:  wrapper.NewClusterClient(cluster),