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prometheus/discovery/kubernetes/endpoints_test.go

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// 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/log"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
"k8s.io/client-go/1.5/pkg/api/v1"
"k8s.io/client-go/1.5/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(log.Base(), svc, eps, pod), svc, eps, pod
}
func makeEndpoints() *v1.Endpoints {
return &v1.Endpoints{
ObjectMeta: v1.ObjectMeta{
Name: "testendpoints",
Namespace: "default",
},
Subsets: []v1.EndpointSubset{
v1.EndpointSubset{
Addresses: []v1.EndpointAddress{
v1.EndpointAddress{
IP: "1.2.3.4",
},
},
Ports: []v1.EndpointPort{
v1.EndpointPort{
Name: "testport",
Port: 9000,
Protocol: v1.ProtocolTCP,
},
},
},
v1.EndpointSubset{
Addresses: []v1.EndpointAddress{
v1.EndpointAddress{
IP: "2.3.4.5",
},
},
NotReadyAddresses: []v1.EndpointAddress{
v1.EndpointAddress{
IP: "2.3.4.5",
},
},
Ports: []v1.EndpointPort{
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: []*config.TargetGroup{
&config.TargetGroup{
Targets: []model.LabelSet{
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",
},
model.LabelSet{
"__address__": "2.3.4.5:9001",
"__meta_kubernetes_endpoint_port_name": "testport",
"__meta_kubernetes_endpoint_port_protocol": "TCP",
"__meta_kubernetes_endpoint_ready": "true",
},
model.LabelSet{
"__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: v1.ObjectMeta{
Name: "testpod",
Namespace: "default",
},
Spec: v1.PodSpec{
NodeName: "testnode",
Containers: []v1.Container{
v1.Container{
Name: "c1",
Ports: []v1.ContainerPort{
v1.ContainerPort{
Name: "mainport",
ContainerPort: 9000,
Protocol: v1.ProtocolTCP,
},
},
},
v1.Container{
Name: "c2",
Ports: []v1.ContainerPort{
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: v1.ObjectMeta{
Name: "testendpoints",
Namespace: "default",
},
Subsets: []v1.EndpointSubset{
v1.EndpointSubset{
Addresses: []v1.EndpointAddress{
v1.EndpointAddress{
IP: "4.3.2.1",
TargetRef: &v1.ObjectReference{
Kind: "Pod",
Name: "testpod",
Namespace: "default",
},
},
},
Ports: []v1.EndpointPort{
v1.EndpointPort{
Name: "testport",
Port: 9000,
Protocol: v1.ProtocolTCP,
},
},
},
},
},
)
}()
},
expectedRes: []*config.TargetGroup{
&config.TargetGroup{
Targets: []model.LabelSet{
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",
},
model.LabelSet{
"__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",
},
},
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: []*config.TargetGroup{
&config.TargetGroup{
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: []*config.TargetGroup{
&config.TargetGroup{
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: v1.ObjectMeta{
Name: "testendpoints",
Namespace: "default",
},
Subsets: []v1.EndpointSubset{
v1.EndpointSubset{
Addresses: []v1.EndpointAddress{
v1.EndpointAddress{
IP: "1.2.3.4",
},
},
Ports: []v1.EndpointPort{
v1.EndpointPort{
Name: "testport",
Port: 9000,
Protocol: v1.ProtocolTCP,
},
},
},
v1.EndpointSubset{
Addresses: []v1.EndpointAddress{
v1.EndpointAddress{
IP: "2.3.4.5",
},
},
Ports: []v1.EndpointPort{
v1.EndpointPort{
Name: "testport",
Port: 9001,
Protocol: v1.ProtocolTCP,
},
},
},
},
})
}()
},
expectedRes: []*config.TargetGroup{
&config.TargetGroup{
Targets: []model.LabelSet{
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",
},
model.LabelSet{
"__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)
}
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