// 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 ( "context" "testing" "github.com/prometheus/common/model" v1 "k8s.io/api/core/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/runtime" "k8s.io/apimachinery/pkg/types" "github.com/prometheus/prometheus/discovery/targetgroup" ) func makeEndpoints() *v1.Endpoints { var nodeName = "foobar" return &v1.Endpoints{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", }, Subsets: []v1.EndpointSubset{ { Addresses: []v1.EndpointAddress{ { IP: "1.2.3.4", Hostname: "testendpoint1", NodeName: &nodeName, }, }, 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 TestEndpointsDiscoveryBeforeRun(t *testing.T) { n, c := makeDiscovery(RoleEndpoint, NamespaceDiscovery{}) k8sDiscoveryTest{ discovery: n, beforeRun: func() { obj := makeEndpoints() c.CoreV1().Endpoints(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{}) }, expectedMaxItems: 1, expectedRes: map[string]*targetgroup.Group{ "endpoints/default/testendpoints": { Targets: []model.LabelSet{ { "__address__": "1.2.3.4:9000", "__meta_kubernetes_endpoint_hostname": "testendpoint1", "__meta_kubernetes_endpoint_node_name": "foobar", "__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) { obj := &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", }, } n, c := makeDiscovery(RoleEndpoint, NamespaceDiscovery{}, obj) k8sDiscoveryTest{ discovery: n, afterStart: func() { obj := &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, }, }, }, }, } c.CoreV1().Endpoints(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{}) }, expectedMaxItems: 1, expectedRes: map[string]*targetgroup.Group{ "endpoints/default/testendpoints": { 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_endpoint_address_target_kind": "Pod", "__meta_kubernetes_endpoint_address_target_name": "testpod", "__meta_kubernetes_pod_name": "testpod", "__meta_kubernetes_pod_ip": "1.2.3.4", "__meta_kubernetes_pod_ready": "unknown", "__meta_kubernetes_pod_phase": "", "__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_phase": "", "__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, c := makeDiscovery(RoleEndpoint, NamespaceDiscovery{}, makeEndpoints()) k8sDiscoveryTest{ discovery: n, afterStart: func() { obj := makeEndpoints() c.CoreV1().Endpoints(obj.Namespace).Delete(context.Background(), obj.Name, metav1.DeleteOptions{}) }, expectedMaxItems: 2, expectedRes: map[string]*targetgroup.Group{ "endpoints/default/testendpoints": { Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryUpdate(t *testing.T) { n, c := makeDiscovery(RoleEndpoint, NamespaceDiscovery{}, makeEndpoints()) k8sDiscoveryTest{ discovery: n, afterStart: func() { obj := &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, }, }, }, }, } c.CoreV1().Endpoints(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{}) }, expectedMaxItems: 2, expectedRes: map[string]*targetgroup.Group{ "endpoints/default/testendpoints": { 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) } func TestEndpointsDiscoveryEmptySubsets(t *testing.T) { n, c := makeDiscovery(RoleEndpoint, NamespaceDiscovery{}, makeEndpoints()) k8sDiscoveryTest{ discovery: n, afterStart: func() { obj := &v1.Endpoints{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", }, Subsets: []v1.EndpointSubset{}, } c.CoreV1().Endpoints(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{}) }, expectedMaxItems: 2, expectedRes: map[string]*targetgroup.Group{ "endpoints/default/testendpoints": { Labels: model.LabelSet{ "__meta_kubernetes_namespace": "default", "__meta_kubernetes_endpoints_name": "testendpoints", }, Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryWithService(t *testing.T) { n, c := makeDiscovery(RoleEndpoint, NamespaceDiscovery{}, makeEndpoints()) k8sDiscoveryTest{ discovery: n, beforeRun: func() { obj := &v1.Service{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", Labels: map[string]string{ "app/name": "test", }, }, } c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{}) }, expectedMaxItems: 1, expectedRes: map[string]*targetgroup.Group{ "endpoints/default/testendpoints": { Targets: []model.LabelSet{ { "__address__": "1.2.3.4:9000", "__meta_kubernetes_endpoint_hostname": "testendpoint1", "__meta_kubernetes_endpoint_node_name": "foobar", "__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", "__meta_kubernetes_service_label_app_name": "test", "__meta_kubernetes_service_labelpresent_app_name": "true", "__meta_kubernetes_service_name": "testendpoints", }, Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryWithServiceUpdate(t *testing.T) { n, c := makeDiscovery(RoleEndpoint, NamespaceDiscovery{}, makeEndpoints()) k8sDiscoveryTest{ discovery: n, beforeRun: func() { obj := &v1.Service{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", Labels: map[string]string{ "app/name": "test", }, }, } c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{}) }, afterStart: func() { obj := &v1.Service{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "default", Labels: map[string]string{ "app/name": "svc", "component": "testing", }, }, } c.CoreV1().Services(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{}) }, expectedMaxItems: 2, expectedRes: map[string]*targetgroup.Group{ "endpoints/default/testendpoints": { Targets: []model.LabelSet{ { "__address__": "1.2.3.4:9000", "__meta_kubernetes_endpoint_hostname": "testendpoint1", "__meta_kubernetes_endpoint_node_name": "foobar", "__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", "__meta_kubernetes_service_label_app_name": "svc", "__meta_kubernetes_service_labelpresent_app_name": "true", "__meta_kubernetes_service_name": "testendpoints", "__meta_kubernetes_service_label_component": "testing", "__meta_kubernetes_service_labelpresent_component": "true", }, Source: "endpoints/default/testendpoints", }, }, }.Run(t) } func TestEndpointsDiscoveryNamespaces(t *testing.T) { epOne := makeEndpoints() epOne.Namespace = "ns1" objs := []runtime.Object{ epOne, &v1.Endpoints{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "ns2", }, Subsets: []v1.EndpointSubset{ { Addresses: []v1.EndpointAddress{ { IP: "4.3.2.1", TargetRef: &v1.ObjectReference{ Kind: "Pod", Name: "testpod", Namespace: "ns2", }, }, }, Ports: []v1.EndpointPort{ { Name: "testport", Port: 9000, Protocol: v1.ProtocolTCP, }, }, }, }, }, &v1.Service{ ObjectMeta: metav1.ObjectMeta{ Name: "testendpoints", Namespace: "ns1", Labels: map[string]string{ "app": "app1", }, }, }, &v1.Pod{ ObjectMeta: metav1.ObjectMeta{ Name: "testpod", Namespace: "ns2", UID: types.UID("deadbeef"), }, Spec: v1.PodSpec{ NodeName: "testnode", Containers: []v1.Container{ { Name: "c1", Ports: []v1.ContainerPort{ { Name: "mainport", ContainerPort: 9000, Protocol: v1.ProtocolTCP, }, }, }, }, }, Status: v1.PodStatus{ HostIP: "2.3.4.5", PodIP: "4.3.2.1", }, }, } n, _ := makeDiscovery(RoleEndpoint, NamespaceDiscovery{Names: []string{"ns1", "ns2"}}, objs...) k8sDiscoveryTest{ discovery: n, expectedMaxItems: 2, expectedRes: map[string]*targetgroup.Group{ "endpoints/ns1/testendpoints": { Targets: []model.LabelSet{ { "__address__": "1.2.3.4:9000", "__meta_kubernetes_endpoint_hostname": "testendpoint1", "__meta_kubernetes_endpoint_node_name": "foobar", "__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": "ns1", "__meta_kubernetes_endpoints_name": "testendpoints", "__meta_kubernetes_service_label_app": "app1", "__meta_kubernetes_service_labelpresent_app": "true", "__meta_kubernetes_service_name": "testendpoints", }, Source: "endpoints/ns1/testendpoints", }, "endpoints/ns2/testendpoints": { 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_endpoint_address_target_kind": "Pod", "__meta_kubernetes_endpoint_address_target_name": "testpod", "__meta_kubernetes_pod_name": "testpod", "__meta_kubernetes_pod_ip": "4.3.2.1", "__meta_kubernetes_pod_ready": "unknown", "__meta_kubernetes_pod_phase": "", "__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", }, }, Labels: model.LabelSet{ "__meta_kubernetes_namespace": "ns2", "__meta_kubernetes_endpoints_name": "testendpoints", }, Source: "endpoints/ns2/testendpoints", }, }, }.Run(t) }