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Move service_util endpoints related functions to framework/endpoints/ports.go #77720
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| /* | ||
| Copyright 2019 The Kubernetes Authors. | ||
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| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
|
|
||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
|
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| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| /* | ||
| This soak tests places a specified number of pods on each node and then | ||
| repeatedly sends queries to a service running on these pods via | ||
| a serivce | ||
| */ | ||
|
|
||
| package endpoints | ||
|
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||
| import ( | ||
| "fmt" | ||
| "sort" | ||
| "time" | ||
|
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| "github.com/onsi/ginkgo" | ||
| v1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| clientset "k8s.io/client-go/kubernetes" | ||
| e2elog "k8s.io/kubernetes/test/e2e/framework/log" | ||
| ) | ||
|
|
||
| // ServiceStartTimeout is how long to wait for a service endpoint to be resolvable. | ||
| const ServiceStartTimeout = 3 * time.Minute | ||
|
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| // PortsByPodName is a map that maps pod name to container ports. | ||
| type PortsByPodName map[string][]int | ||
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| // PortsByPodUID is a map that maps pod UID to container ports. | ||
| type PortsByPodUID map[types.UID][]int | ||
|
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| // GetContainerPortsByPodUID returns a PortsByPodUID map on the given endpoints. | ||
| func GetContainerPortsByPodUID(ep *v1.Endpoints) PortsByPodUID { | ||
| m := PortsByPodUID{} | ||
| for _, ss := range ep.Subsets { | ||
| for _, port := range ss.Ports { | ||
| for _, addr := range ss.Addresses { | ||
| containerPort := port.Port | ||
| if _, ok := m[addr.TargetRef.UID]; !ok { | ||
| m[addr.TargetRef.UID] = make([]int, 0) | ||
| } | ||
| m[addr.TargetRef.UID] = append(m[addr.TargetRef.UID], int(containerPort)) | ||
| } | ||
| } | ||
| } | ||
| return m | ||
| } | ||
|
|
||
| func translatePodNameToUID(c clientset.Interface, ns string, expectedEndpoints PortsByPodName) (PortsByPodUID, error) { | ||
| portsByUID := make(PortsByPodUID) | ||
| for name, portList := range expectedEndpoints { | ||
| pod, err := c.CoreV1().Pods(ns).Get(name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get pod %s, that's pretty weird. validation failed: %s", name, err) | ||
| } | ||
| portsByUID[pod.ObjectMeta.UID] = portList | ||
| } | ||
| return portsByUID, nil | ||
| } | ||
|
|
||
| func validatePorts(ep PortsByPodUID, expectedEndpoints PortsByPodUID) error { | ||
| if len(ep) != len(expectedEndpoints) { | ||
| // should not happen because we check this condition before | ||
| return fmt.Errorf("invalid number of endpoints got %v, expected %v", ep, expectedEndpoints) | ||
| } | ||
| for podUID := range expectedEndpoints { | ||
| if _, ok := ep[podUID]; !ok { | ||
| return fmt.Errorf("endpoint %v not found", podUID) | ||
| } | ||
| if len(ep[podUID]) != len(expectedEndpoints[podUID]) { | ||
| return fmt.Errorf("invalid list of ports for uid %v. Got %v, expected %v", podUID, ep[podUID], expectedEndpoints[podUID]) | ||
| } | ||
| sort.Ints(ep[podUID]) | ||
| sort.Ints(expectedEndpoints[podUID]) | ||
| for index := range ep[podUID] { | ||
| if ep[podUID][index] != expectedEndpoints[podUID][index] { | ||
| return fmt.Errorf("invalid list of ports for uid %v. Got %v, expected %v", podUID, ep[podUID], expectedEndpoints[podUID]) | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // ValidateEndpointsPorts validates that the given service exists and is served by the given expectedEndpoints. | ||
| func ValidateEndpointsPorts(c clientset.Interface, namespace, serviceName string, expectedEndpoints PortsByPodName) error { | ||
| ginkgo.By(fmt.Sprintf("waiting up to %v for service %s in namespace %s to expose endpoints %v", ServiceStartTimeout, serviceName, namespace, expectedEndpoints)) | ||
| i := 1 | ||
| for start := time.Now(); time.Since(start) < ServiceStartTimeout; time.Sleep(1 * time.Second) { | ||
| ep, err := c.CoreV1().Endpoints(namespace).Get(serviceName, metav1.GetOptions{}) | ||
| if err != nil { | ||
| e2elog.Logf("Get endpoints failed (%v elapsed, ignoring for 5s): %v", time.Since(start), err) | ||
| continue | ||
| } | ||
| portsByPodUID := GetContainerPortsByPodUID(ep) | ||
| expectedPortsByPodUID, err := translatePodNameToUID(c, namespace, expectedEndpoints) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if len(portsByPodUID) == len(expectedEndpoints) { | ||
| err := validatePorts(portsByPodUID, expectedPortsByPodUID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| e2elog.Logf("successfully validated that service %s in namespace %s exposes endpoints %v (%v elapsed)", | ||
| serviceName, namespace, expectedEndpoints, time.Since(start)) | ||
| return nil | ||
| } | ||
| if i%5 == 0 { | ||
| e2elog.Logf("Unexpected endpoints: found %v, expected %v (%v elapsed, will retry)", portsByPodUID, expectedEndpoints, time.Since(start)) | ||
| } | ||
| i++ | ||
| } | ||
| if pods, err := c.CoreV1().Pods(metav1.NamespaceAll).List(metav1.ListOptions{}); err == nil { | ||
| for _, pod := range pods.Items { | ||
| e2elog.Logf("Pod %s\t%s\t%s\t%s", pod.Namespace, pod.Name, pod.Spec.NodeName, pod.DeletionTimestamp) | ||
| } | ||
| } else { | ||
| e2elog.Logf("Can't list pod debug info: %v", err) | ||
| } | ||
| return fmt.Errorf("Timed out waiting for service %s in namespace %s to expose endpoints %v (%v elapsed)", serviceName, namespace, expectedEndpoints, ServiceStartTimeout) | ||
| } |
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Rename variable
endpointstoepbecause we need to importendpointspackage in this file