// Copyright 2016 The Prometheus Authors // 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 // // 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. package kubernetes import ( "testing" "github.com/prometheus/common/model" "github.com/prometheus/prometheus/discovery/targetgroup" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/types" "k8s.io/client-go/pkg/api/v1" "k8s.io/client-go/tools/cache" ) func endpointsStoreKeyFunc(obj interface{}) (string, error) { return obj.(*v1.Endpoints).ObjectMeta.Name, nil } func newFakeEndpointsInformer() *fakeInformer { return newFakeInformer(endpointsStoreKeyFunc) } func makeTestEndpointsDiscovery() (*Endpoints, *fakeInformer, *fakeInformer, *fakeInformer) { svc := newFakeServiceInformer() eps := newFakeEndpointsInformer() pod := newFakePodInformer() return NewEndpoints(nil, svc, eps, pod), svc, eps, pod } func makeEndpoints() *v1.Endpoints { return &v1.Endpoints{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", }, Subsets: []v1.EndpointSubset{ { Addresses: []v1.EndpointAddress{ { IP: "1.2.3.4", }, }, Ports: []v1.EndpointPort{ { Name: "testport", Port: 9000, Protocol: v1.ProtocolTCP, }, }, }, { Addresses: []v1.EndpointAddress{ { IP: "2.3.4.5", }, }, NotReadyAddresses: []v1.EndpointAddress{ { IP: "2.3.4.5", }, }, Ports: []v1.EndpointPort{ { Name: "testport", Port: 9001, Protocol: v1.ProtocolTCP, }, }, }, }, } } func TestEndpointsDiscoveryInitial(t *testing.T) { n, _, eps, _ := makeTestEndpointsDiscovery() eps.GetStore().Add(makeEndpoints()) k8sDiscoveryTest{ discovery: n, expectedInitial: []*targetgroup.Group{ { Targets: []model.LabelSet{ { "__address__": "1.2.3.4:9000", "__meta_kubernetes_endpoint_port_name": "testport", "__meta_kubernetes_endpoint_port_protocol": "TCP", "__meta_kubernetes_endpoint_ready": "true", }, { "__address__": "2.3.4.5:9001", "__meta_kubernetes_endpoint_port_name": "testport", "__meta_kubernetes_endpoint_port_protocol": "TCP", "__meta_kubernetes_endpoint_ready": "true", }, { "__address__": "2.3.4.5:9001", "__meta_kubernetes_endpoint_port_name": "testport", "__meta_kubernetes_endpoint_port_protocol": "TCP", "__meta_kubernetes_endpoint_ready": "false", }, }, Labels: model.LabelSet{ "__meta_kubernetes_namespace": "default", "__meta_kubernetes_endpoints_name": "testendpoints", }, Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryAdd(t *testing.T) { n, _, eps, pods := makeTestEndpointsDiscovery() pods.GetStore().Add(&v1.Pod{ ObjectMeta: metav1.ObjectMeta{ Name: "testpod", Namespace: "default", UID: types.UID("deadbeef"), }, Spec: v1.PodSpec{ NodeName: "testnode", Containers: []v1.Container{ { Name: "c1", Ports: []v1.ContainerPort{ { Name: "mainport", ContainerPort: 9000, Protocol: v1.ProtocolTCP, }, }, }, { Name: "c2", Ports: []v1.ContainerPort{ { Name: "sideport", ContainerPort: 9001, Protocol: v1.ProtocolTCP, }, }, }, }, }, Status: v1.PodStatus{ HostIP: "2.3.4.5", PodIP: "1.2.3.4", }, }) k8sDiscoveryTest{ discovery: n, afterStart: func() { go func() { eps.Add( &v1.Endpoints{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", }, Subsets: []v1.EndpointSubset{ { Addresses: []v1.EndpointAddress{ { IP: "4.3.2.1", TargetRef: &v1.ObjectReference{ Kind: "Pod", Name: "testpod", Namespace: "default", }, }, }, Ports: []v1.EndpointPort{ { Name: "testport", Port: 9000, Protocol: v1.ProtocolTCP, }, }, }, }, }, ) }() }, expectedRes: []*targetgroup.Group{ { Targets: []model.LabelSet{ { "__address__": "4.3.2.1:9000", "__meta_kubernetes_endpoint_port_name": "testport", "__meta_kubernetes_endpoint_port_protocol": "TCP", "__meta_kubernetes_endpoint_ready": "true", "__meta_kubernetes_pod_name": "testpod", "__meta_kubernetes_pod_ip": "1.2.3.4", "__meta_kubernetes_pod_ready": "unknown", "__meta_kubernetes_pod_node_name": "testnode", "__meta_kubernetes_pod_host_ip": "2.3.4.5", "__meta_kubernetes_pod_container_name": "c1", "__meta_kubernetes_pod_container_port_name": "mainport", "__meta_kubernetes_pod_container_port_number": "9000", "__meta_kubernetes_pod_container_port_protocol": "TCP", "__meta_kubernetes_pod_uid": "deadbeef", }, { "__address__": "1.2.3.4:9001", "__meta_kubernetes_pod_name": "testpod", "__meta_kubernetes_pod_ip": "1.2.3.4", "__meta_kubernetes_pod_ready": "unknown", "__meta_kubernetes_pod_node_name": "testnode", "__meta_kubernetes_pod_host_ip": "2.3.4.5", "__meta_kubernetes_pod_container_name": "c2", "__meta_kubernetes_pod_container_port_name": "sideport", "__meta_kubernetes_pod_container_port_number": "9001", "__meta_kubernetes_pod_container_port_protocol": "TCP", "__meta_kubernetes_pod_uid": "deadbeef", }, }, Labels: model.LabelSet{ "__meta_kubernetes_endpoints_name": "testendpoints", "__meta_kubernetes_namespace": "default", }, Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryDelete(t *testing.T) { n, _, eps, _ := makeTestEndpointsDiscovery() eps.GetStore().Add(makeEndpoints()) k8sDiscoveryTest{ discovery: n, afterStart: func() { go func() { eps.Delete(makeEndpoints()) }() }, expectedRes: []*targetgroup.Group{ { Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryDeleteUnknownCacheState(t *testing.T) { n, _, eps, _ := makeTestEndpointsDiscovery() eps.GetStore().Add(makeEndpoints()) k8sDiscoveryTest{ discovery: n, afterStart: func() { go func() { eps.Delete(cache.DeletedFinalStateUnknown{Obj: makeEndpoints()}) }() }, expectedRes: []*targetgroup.Group{ { Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryUpdate(t *testing.T) { n, _, eps, _ := makeTestEndpointsDiscovery() eps.GetStore().Add(makeEndpoints()) k8sDiscoveryTest{ discovery: n, afterStart: func() { go func() { eps.Update(&v1.Endpoints{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", }, Subsets: []v1.EndpointSubset{ { Addresses: []v1.EndpointAddress{ { IP: "1.2.3.4", }, }, Ports: []v1.EndpointPort{ { Name: "testport", Port: 9000, Protocol: v1.ProtocolTCP, }, }, }, { Addresses: []v1.EndpointAddress{ { IP: "2.3.4.5", }, }, Ports: []v1.EndpointPort{ { Name: "testport", Port: 9001, Protocol: v1.ProtocolTCP, }, }, }, }, }) }() }, expectedRes: []*targetgroup.Group{ { Targets: []model.LabelSet{ { "__address__": "1.2.3.4:9000", "__meta_kubernetes_endpoint_port_name": "testport", "__meta_kubernetes_endpoint_port_protocol": "TCP", "__meta_kubernetes_endpoint_ready": "true", }, { "__address__": "2.3.4.5:9001", "__meta_kubernetes_endpoint_port_name": "testport", "__meta_kubernetes_endpoint_port_protocol": "TCP", "__meta_kubernetes_endpoint_ready": "true", }, }, Labels: model.LabelSet{ "__meta_kubernetes_namespace": "default", "__meta_kubernetes_endpoints_name": "testendpoints", }, Source: "endpoints/default/testendpoints", }, }, }.Run(t) }