move apigateway into apiserver (#1948)

pkg/kapis/servicemesh/metrics/v1alpha2/handler.go

@@ -1 +1,110 @@
 package v1alpha2
+
+import (
+	"fmt"
+	"github.com/emicklei/go-restful"
+	"github.com/kiali/kiali/handlers"
+	"io/ioutil"
+	"k8s.io/klog"
+	"kubesphere.io/kubesphere/pkg/api"
+	"net/http"
+)
+
+var JaegerQueryUrl = "http://jaeger-query.istio-system.svc:16686/jaeger"
+
+// Get app metrics
+func getAppMetrics(request *restful.Request, response *restful.Response) {
+	handlers.AppMetrics(request, response)
+}
+
+// Get workload metrics
+func getWorkloadMetrics(request *restful.Request, response *restful.Response) {
+	namespace := request.PathParameter("namespace")
+	workload := request.PathParameter("workload")
+
+	if len(namespace) > 0 && len(workload) > 0 {
+		request.Request.URL.RawQuery = fmt.Sprintf("%s&namespaces=%s&workload=%s", request.Request.URL.RawQuery, namespace, workload)
+	}
+
+	handlers.WorkloadMetrics(request, response)
+}
+
+// Get service metrics
+func getServiceMetrics(request *restful.Request, response *restful.Response) {
+	handlers.ServiceMetrics(request, response)
+}
+
+// Get namespace metrics
+func getNamespaceMetrics(request *restful.Request, response *restful.Response) {
+	handlers.NamespaceMetrics(request, response)
+}
+
+// Get service graph for namespace
+func getNamespaceGraph(request *restful.Request, response *restful.Response) {
+	namespace := request.PathParameter("namespace")
+
+	if len(namespace) > 0 {
+		request.Request.URL.RawQuery = fmt.Sprintf("%s&namespaces=%s", request.Request.URL.RawQuery, namespace)
+	}
+
+	handlers.GetNamespaceGraph(request, response)
+}
+
+// Get service graph for namespaces
+func getNamespacesGraph(request *restful.Request, response *restful.Response) {
+	handlers.GraphNamespaces(request, response)
+}
+
+// Get namespace health
+func getNamespaceHealth(request *restful.Request, response *restful.Response) {
+	handlers.NamespaceHealth(request, response)
+}
+
+// Get workload health
+func getWorkloadHealth(request *restful.Request, response *restful.Response) {
+	handlers.WorkloadHealth(request, response)
+}
+
+// Get app health
+func getAppHealth(request *restful.Request, response *restful.Response) {
+	handlers.AppHealth(request, response)
+}
+
+// Get service health
+func getServiceHealth(request *restful.Request, response *restful.Response) {
+	handlers.ServiceHealth(request, response)
+}
+
+func getServiceTracing(request *restful.Request, response *restful.Response) {
+	namespace := request.PathParameter("namespace")
+	service := request.PathParameter("service")
+
+	serviceName := fmt.Sprintf("%s.%s", service, namespace)
+
+	url := fmt.Sprintf("%s/api/traces?%s&service=%s", JaegerQueryUrl, request.Request.URL.RawQuery, serviceName)
+
+	resp, err := http.Get(url)
+
+	if err != nil {
+		klog.Errorf("query jaeger faile with err %v", err)
+		api.HandleInternalError(response, err)
+		return
+	}
+
+	body, err := ioutil.ReadAll(resp.Body)
+	defer resp.Body.Close()
+
+	if err != nil {
+		klog.Errorf("read response error : %v", err)
+		api.HandleInternalError(response, err)
+		return
+	}
+
+	// need to set header for proper response
+	response.Header().Set("Content-Type", "application/json")
+	_, err = response.Write(body)
+
+	if err != nil {
+		klog.Errorf("write response failed %v", err)
+	}
+}