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373 lines
9.9 KiB
373 lines
9.9 KiB
// Copyright 2016 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package kubernetes
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import (
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"testing"
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"github.com/prometheus/common/model"
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"github.com/prometheus/prometheus/discovery/targetgroup"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/pkg/api/v1"
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"k8s.io/client-go/tools/cache"
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)
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func endpointsStoreKeyFunc(obj interface{}) (string, error) {
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return obj.(*v1.Endpoints).ObjectMeta.Name, nil
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}
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func newFakeEndpointsInformer() *fakeInformer {
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return newFakeInformer(endpointsStoreKeyFunc)
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}
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func makeTestEndpointsDiscovery() (*Endpoints, *fakeInformer, *fakeInformer, *fakeInformer) {
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svc := newFakeServiceInformer()
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eps := newFakeEndpointsInformer()
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pod := newFakePodInformer()
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return NewEndpoints(nil, svc, eps, pod), svc, eps, pod
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}
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func makeEndpoints() *v1.Endpoints {
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return &v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "testendpoints",
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Namespace: "default",
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},
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Subsets: []v1.EndpointSubset{
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{
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Addresses: []v1.EndpointAddress{
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{
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IP: "1.2.3.4",
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},
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},
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Ports: []v1.EndpointPort{
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{
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Name: "testport",
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Port: 9000,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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{
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Addresses: []v1.EndpointAddress{
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{
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IP: "2.3.4.5",
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},
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},
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NotReadyAddresses: []v1.EndpointAddress{
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{
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IP: "2.3.4.5",
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},
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},
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Ports: []v1.EndpointPort{
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{
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Name: "testport",
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Port: 9001,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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},
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}
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}
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func TestEndpointsDiscoveryInitial(t *testing.T) {
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n, _, eps, _ := makeTestEndpointsDiscovery()
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eps.GetStore().Add(makeEndpoints())
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k8sDiscoveryTest{
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discovery: n,
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expectedInitial: []*targetgroup.Group{
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{
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Targets: []model.LabelSet{
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{
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"__address__": "1.2.3.4:9000",
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"__meta_kubernetes_endpoint_port_name": "testport",
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"__meta_kubernetes_endpoint_port_protocol": "TCP",
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"__meta_kubernetes_endpoint_ready": "true",
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},
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{
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"__address__": "2.3.4.5:9001",
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"__meta_kubernetes_endpoint_port_name": "testport",
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"__meta_kubernetes_endpoint_port_protocol": "TCP",
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"__meta_kubernetes_endpoint_ready": "true",
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},
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{
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"__address__": "2.3.4.5:9001",
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"__meta_kubernetes_endpoint_port_name": "testport",
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"__meta_kubernetes_endpoint_port_protocol": "TCP",
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"__meta_kubernetes_endpoint_ready": "false",
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},
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},
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Labels: model.LabelSet{
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"__meta_kubernetes_namespace": "default",
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"__meta_kubernetes_endpoints_name": "testendpoints",
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},
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Source: "endpoints/default/testendpoints",
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},
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},
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}.Run(t)
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}
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func TestEndpointsDiscoveryAdd(t *testing.T) {
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n, _, eps, pods := makeTestEndpointsDiscovery()
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pods.GetStore().Add(&v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "testpod",
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Namespace: "default",
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UID: types.UID("deadbeef"),
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},
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Spec: v1.PodSpec{
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NodeName: "testnode",
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Containers: []v1.Container{
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{
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Name: "c1",
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Ports: []v1.ContainerPort{
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{
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Name: "mainport",
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ContainerPort: 9000,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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{
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Name: "c2",
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Ports: []v1.ContainerPort{
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{
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Name: "sideport",
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ContainerPort: 9001,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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},
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},
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Status: v1.PodStatus{
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HostIP: "2.3.4.5",
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PodIP: "1.2.3.4",
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},
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})
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k8sDiscoveryTest{
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discovery: n,
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afterStart: func() {
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go func() {
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eps.Add(
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&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "testendpoints",
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Namespace: "default",
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},
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Subsets: []v1.EndpointSubset{
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{
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Addresses: []v1.EndpointAddress{
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{
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IP: "4.3.2.1",
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TargetRef: &v1.ObjectReference{
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Kind: "Pod",
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Name: "testpod",
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Namespace: "default",
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},
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},
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},
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Ports: []v1.EndpointPort{
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{
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Name: "testport",
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Port: 9000,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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},
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},
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)
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}()
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},
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expectedRes: []*targetgroup.Group{
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{
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Targets: []model.LabelSet{
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{
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"__address__": "4.3.2.1:9000",
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"__meta_kubernetes_endpoint_port_name": "testport",
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"__meta_kubernetes_endpoint_port_protocol": "TCP",
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"__meta_kubernetes_endpoint_ready": "true",
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"__meta_kubernetes_endpoint_address_target_kind": "Pod",
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"__meta_kubernetes_endpoint_address_target_name": "testpod",
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"__meta_kubernetes_pod_name": "testpod",
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"__meta_kubernetes_pod_ip": "1.2.3.4",
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"__meta_kubernetes_pod_ready": "unknown",
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"__meta_kubernetes_pod_node_name": "testnode",
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"__meta_kubernetes_pod_host_ip": "2.3.4.5",
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"__meta_kubernetes_pod_container_name": "c1",
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"__meta_kubernetes_pod_container_port_name": "mainport",
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"__meta_kubernetes_pod_container_port_number": "9000",
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"__meta_kubernetes_pod_container_port_protocol": "TCP",
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"__meta_kubernetes_pod_uid": "deadbeef",
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},
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{
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"__address__": "1.2.3.4:9001",
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"__meta_kubernetes_pod_name": "testpod",
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"__meta_kubernetes_pod_ip": "1.2.3.4",
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"__meta_kubernetes_pod_ready": "unknown",
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"__meta_kubernetes_pod_node_name": "testnode",
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"__meta_kubernetes_pod_host_ip": "2.3.4.5",
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"__meta_kubernetes_pod_container_name": "c2",
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"__meta_kubernetes_pod_container_port_name": "sideport",
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"__meta_kubernetes_pod_container_port_number": "9001",
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"__meta_kubernetes_pod_container_port_protocol": "TCP",
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"__meta_kubernetes_pod_uid": "deadbeef",
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},
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},
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Labels: model.LabelSet{
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"__meta_kubernetes_endpoints_name": "testendpoints",
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"__meta_kubernetes_namespace": "default",
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},
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Source: "endpoints/default/testendpoints",
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},
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},
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}.Run(t)
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}
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func TestEndpointsDiscoveryDelete(t *testing.T) {
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n, _, eps, _ := makeTestEndpointsDiscovery()
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eps.GetStore().Add(makeEndpoints())
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k8sDiscoveryTest{
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discovery: n,
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afterStart: func() { go func() { eps.Delete(makeEndpoints()) }() },
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expectedRes: []*targetgroup.Group{
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{
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Source: "endpoints/default/testendpoints",
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},
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},
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}.Run(t)
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}
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func TestEndpointsDiscoveryDeleteUnknownCacheState(t *testing.T) {
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n, _, eps, _ := makeTestEndpointsDiscovery()
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eps.GetStore().Add(makeEndpoints())
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k8sDiscoveryTest{
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discovery: n,
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afterStart: func() { go func() { eps.Delete(cache.DeletedFinalStateUnknown{Obj: makeEndpoints()}) }() },
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expectedRes: []*targetgroup.Group{
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{
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Source: "endpoints/default/testendpoints",
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},
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},
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}.Run(t)
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}
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func TestEndpointsDiscoveryUpdate(t *testing.T) {
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n, _, eps, _ := makeTestEndpointsDiscovery()
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eps.GetStore().Add(makeEndpoints())
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k8sDiscoveryTest{
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discovery: n,
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afterStart: func() {
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go func() {
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eps.Update(&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "testendpoints",
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Namespace: "default",
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},
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Subsets: []v1.EndpointSubset{
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{
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Addresses: []v1.EndpointAddress{
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{
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IP: "1.2.3.4",
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},
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},
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Ports: []v1.EndpointPort{
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{
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Name: "testport",
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Port: 9000,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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{
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Addresses: []v1.EndpointAddress{
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{
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IP: "2.3.4.5",
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},
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},
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Ports: []v1.EndpointPort{
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{
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Name: "testport",
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Port: 9001,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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},
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})
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}()
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},
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expectedRes: []*targetgroup.Group{
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{
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Targets: []model.LabelSet{
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{
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"__address__": "1.2.3.4:9000",
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"__meta_kubernetes_endpoint_port_name": "testport",
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"__meta_kubernetes_endpoint_port_protocol": "TCP",
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"__meta_kubernetes_endpoint_ready": "true",
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},
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{
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"__address__": "2.3.4.5:9001",
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"__meta_kubernetes_endpoint_port_name": "testport",
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"__meta_kubernetes_endpoint_port_protocol": "TCP",
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"__meta_kubernetes_endpoint_ready": "true",
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},
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},
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Labels: model.LabelSet{
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"__meta_kubernetes_namespace": "default",
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"__meta_kubernetes_endpoints_name": "testendpoints",
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},
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Source: "endpoints/default/testendpoints",
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},
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},
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}.Run(t)
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}
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func TestEndpointsDiscoveryEmptySubsets(t *testing.T) {
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n, _, eps, _ := makeTestEndpointsDiscovery()
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eps.GetStore().Add(makeEndpoints())
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k8sDiscoveryTest{
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discovery: n,
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afterStart: func() {
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go func() {
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eps.Update(&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "testendpoints",
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Namespace: "default",
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},
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Subsets: []v1.EndpointSubset{},
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})
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}()
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},
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expectedRes: []*targetgroup.Group{
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{
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Labels: model.LabelSet{
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"__meta_kubernetes_namespace": "default",
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"__meta_kubernetes_endpoints_name": "testendpoints",
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},
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Source: "endpoints/default/testendpoints",
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},
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},
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}.Run(t)
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}
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