add service traces

pkg/apis/servicemesh/metrics/v1alpha2/register.go

@@ -6,6 +6,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"kubesphere.io/kubesphere/pkg/apiserver/runtime"
 	"kubesphere.io/kubesphere/pkg/apiserver/servicemesh/metrics"
+	"kubesphere.io/kubesphere/pkg/apiserver/servicemesh/tracing"
 	"kubesphere.io/kubesphere/pkg/errors"
 )
 
@@ -170,6 +171,23 @@ func addWebService(c *restful.Container) error {
 		Param(webservice.QueryParameter("queryTime", "the time to use for query")).
 		Writes(errors.Error{})).Produces(restful.MIME_JSON)
 
+	// Get service tracing
+	webservice.Route(webservice.GET("/namespaces/{namespace}/services/{service}/traces").
+		To(tracing.GetServiceTracing).
+		Doc("Get tracing of a service, should have servicemesh enabled first").
+		Metadata(restfulspec.KeyOpenAPITags, tags).
+		Param(webservice.PathParameter("namespace", "namespace of service").Required(true)).
+		Param(webservice.PathParameter("service", "name of service queried").Required(true)).
+		Param(webservice.QueryParameter("start", "start of time range want to query, in unix timestamp")).
+		Param(webservice.QueryParameter("end", "end of time range want to query, in unix timestamp")).
+		Param(webservice.QueryParameter("limit", "maximum tracing entries returned at one query, default 10").DefaultValue("10")).
+		Param(webservice.QueryParameter("loopback", "loopback of duration want to query, e.g. 30m/1h/2d")).
+		Param(webservice.QueryParameter("maxDuration", "maximum duration of tracing")).
+		Param(webservice.QueryParameter("minDuration", "minimum duration of tracing")).
+		Writes(errors.Error{}).
+		Consumes(restful.MIME_JSON).
+		Produces(restful.MIME_JSON))
+
 	c.Add(webservice)
 
 	return nil

pkg/apiserver/servicemesh/tracing/handlers.go

@@ -0,0 +1,43 @@
+package tracing
+
+import (
+	"fmt"
+	"github.com/emicklei/go-restful"
+	"io/ioutil"
+	"log"
+	"net/http"
+)
+
+var JaegerQueryUrl = "http://jaeger-query.istio-system.svc:16686/jaeger"
+
+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 {
+		log.Printf("query jaeger faile with err %v", err)
+		response.WriteError(http.StatusInternalServerError, err)
+		return
+	}
+
+	body, err := ioutil.ReadAll(resp.Body)
+	defer resp.Body.Close()
+
+	if err != nil {
+		log.Printf("read response error : %v", err)
+		response.WriteError(http.StatusInternalServerError, err)
+		return
+	}
+
+	_, err = response.Write(body)
+
+	if err != nil {
+		log.Printf("write response failed %v", err)
+	}
+}