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391 lines
11 KiB
391 lines
11 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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"context" |
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"fmt" |
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"testing" |
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"github.com/prometheus/common/model" |
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v1 "k8s.io/api/core/v1" |
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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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"github.com/prometheus/prometheus/discovery/targetgroup" |
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) |
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func makeOptionalBool(v bool) *bool { |
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return &v |
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} |
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func makeMultiPortPods() *v1.Pod { |
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return &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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Labels: map[string]string{"test/label": "testvalue"}, |
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Annotations: map[string]string{"test/annotation": "testannotationvalue"}, |
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UID: types.UID("abc123"), |
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OwnerReferences: []metav1.OwnerReference{ |
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{ |
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Kind: "testcontrollerkind", |
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Name: "testcontrollername", |
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Controller: makeOptionalBool(true), |
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}, |
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}, |
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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: "testcontainer0", |
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Ports: []v1.ContainerPort{ |
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{ |
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Name: "testport0", |
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Protocol: v1.ProtocolTCP, |
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ContainerPort: int32(9000), |
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}, |
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{ |
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Name: "testport1", |
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Protocol: v1.ProtocolUDP, |
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ContainerPort: int32(9001), |
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}, |
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}, |
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}, |
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{ |
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Name: "testcontainer1", |
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}, |
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}, |
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}, |
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Status: v1.PodStatus{ |
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PodIP: "1.2.3.4", |
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HostIP: "2.3.4.5", |
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Phase: "Running", |
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Conditions: []v1.PodCondition{ |
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{ |
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Type: v1.PodReady, |
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Status: v1.ConditionTrue, |
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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 makePods() *v1.Pod { |
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return &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("abc123"), |
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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: "testcontainer", |
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Ports: []v1.ContainerPort{ |
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{ |
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Name: "testport", |
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Protocol: v1.ProtocolTCP, |
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ContainerPort: int32(9000), |
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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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PodIP: "1.2.3.4", |
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HostIP: "2.3.4.5", |
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Phase: "Running", |
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Conditions: []v1.PodCondition{ |
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{ |
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Type: v1.PodReady, |
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Status: v1.ConditionTrue, |
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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 makeInitContainerPods() *v1.Pod { |
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return &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("abc123"), |
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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: "testcontainer", |
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Ports: []v1.ContainerPort{ |
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{ |
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Name: "testport", |
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Protocol: v1.ProtocolTCP, |
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ContainerPort: int32(9000), |
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}, |
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}, |
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}, |
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}, |
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InitContainers: []v1.Container{ |
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{ |
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Name: "initcontainer", |
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}, |
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}, |
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}, |
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Status: v1.PodStatus{ |
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PodIP: "1.2.3.4", |
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HostIP: "2.3.4.5", |
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Phase: "Pending", |
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Conditions: []v1.PodCondition{ |
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{ |
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Type: v1.PodReady, |
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Status: v1.ConditionFalse, |
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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 expectedPodTargetGroups(ns string) map[string]*targetgroup.Group { |
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key := fmt.Sprintf("pod/%s/testpod", ns) |
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return map[string]*targetgroup.Group{ |
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key: { |
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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_pod_container_name": "testcontainer", |
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"__meta_kubernetes_pod_container_port_name": "testport", |
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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_container_init": "false", |
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}, |
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}, |
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Labels: model.LabelSet{ |
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"__meta_kubernetes_pod_name": "testpod", |
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"__meta_kubernetes_namespace": lv(ns), |
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"__meta_kubernetes_pod_node_name": "testnode", |
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"__meta_kubernetes_pod_ip": "1.2.3.4", |
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"__meta_kubernetes_pod_host_ip": "2.3.4.5", |
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"__meta_kubernetes_pod_ready": "true", |
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"__meta_kubernetes_pod_phase": "Running", |
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"__meta_kubernetes_pod_uid": "abc123", |
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}, |
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Source: key, |
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}, |
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} |
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} |
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func TestPodDiscoveryBeforeRun(t *testing.T) { |
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n, c := makeDiscovery(RolePod, NamespaceDiscovery{}) |
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k8sDiscoveryTest{ |
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discovery: n, |
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beforeRun: func() { |
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obj := makeMultiPortPods() |
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c.CoreV1().Pods(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{}) |
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}, |
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expectedMaxItems: 1, |
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expectedRes: map[string]*targetgroup.Group{ |
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"pod/default/testpod": { |
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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_pod_container_name": "testcontainer0", |
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"__meta_kubernetes_pod_container_port_name": "testport0", |
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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_container_init": "false", |
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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_container_name": "testcontainer0", |
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"__meta_kubernetes_pod_container_port_name": "testport1", |
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"__meta_kubernetes_pod_container_port_number": "9001", |
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"__meta_kubernetes_pod_container_port_protocol": "UDP", |
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"__meta_kubernetes_pod_container_init": "false", |
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}, |
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{ |
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"__address__": "1.2.3.4", |
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"__meta_kubernetes_pod_container_name": "testcontainer1", |
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"__meta_kubernetes_pod_container_init": "false", |
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}, |
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}, |
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Labels: model.LabelSet{ |
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"__meta_kubernetes_pod_name": "testpod", |
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"__meta_kubernetes_namespace": "default", |
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"__meta_kubernetes_pod_label_test_label": "testvalue", |
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"__meta_kubernetes_pod_labelpresent_test_label": "true", |
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"__meta_kubernetes_pod_annotation_test_annotation": "testannotationvalue", |
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"__meta_kubernetes_pod_annotationpresent_test_annotation": "true", |
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"__meta_kubernetes_pod_node_name": "testnode", |
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"__meta_kubernetes_pod_ip": "1.2.3.4", |
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"__meta_kubernetes_pod_host_ip": "2.3.4.5", |
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"__meta_kubernetes_pod_ready": "true", |
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"__meta_kubernetes_pod_phase": "Running", |
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"__meta_kubernetes_pod_uid": "abc123", |
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"__meta_kubernetes_pod_controller_kind": "testcontrollerkind", |
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"__meta_kubernetes_pod_controller_name": "testcontrollername", |
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}, |
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Source: "pod/default/testpod", |
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}, |
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}, |
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}.Run(t) |
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} |
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func TestPodDiscoveryInitContainer(t *testing.T) { |
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n, c := makeDiscovery(RolePod, NamespaceDiscovery{}) |
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ns := "default" |
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key := fmt.Sprintf("pod/%s/testpod", ns) |
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expected := expectedPodTargetGroups(ns) |
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expected[key].Targets = append(expected[key].Targets, model.LabelSet{ |
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"__address__": "1.2.3.4", |
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"__meta_kubernetes_pod_container_name": "initcontainer", |
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"__meta_kubernetes_pod_container_init": "true", |
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}) |
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expected[key].Labels["__meta_kubernetes_pod_phase"] = "Pending" |
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expected[key].Labels["__meta_kubernetes_pod_ready"] = "false" |
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k8sDiscoveryTest{ |
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discovery: n, |
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beforeRun: func() { |
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obj := makeInitContainerPods() |
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c.CoreV1().Pods(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{}) |
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}, |
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expectedMaxItems: 1, |
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expectedRes: expected, |
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}.Run(t) |
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} |
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func TestPodDiscoveryAdd(t *testing.T) { |
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n, c := makeDiscovery(RolePod, NamespaceDiscovery{}) |
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k8sDiscoveryTest{ |
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discovery: n, |
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afterStart: func() { |
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obj := makePods() |
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c.CoreV1().Pods(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{}) |
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}, |
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expectedMaxItems: 1, |
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expectedRes: expectedPodTargetGroups("default"), |
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}.Run(t) |
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} |
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func TestPodDiscoveryDelete(t *testing.T) { |
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obj := makePods() |
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n, c := makeDiscovery(RolePod, NamespaceDiscovery{}, obj) |
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k8sDiscoveryTest{ |
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discovery: n, |
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afterStart: func() { |
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obj := makePods() |
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c.CoreV1().Pods(obj.Namespace).Delete(context.Background(), obj.Name, metav1.DeleteOptions{}) |
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}, |
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expectedMaxItems: 2, |
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expectedRes: map[string]*targetgroup.Group{ |
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"pod/default/testpod": { |
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Source: "pod/default/testpod", |
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}, |
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}, |
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}.Run(t) |
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} |
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func TestPodDiscoveryUpdate(t *testing.T) { |
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obj := &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: "xyz321", |
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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: "testcontainer", |
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Ports: []v1.ContainerPort{ |
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{ |
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Name: "testport", |
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Protocol: v1.ProtocolTCP, |
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ContainerPort: int32(9000), |
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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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PodIP: "1.2.3.4", |
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HostIP: "2.3.4.5", |
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}, |
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} |
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n, c := makeDiscovery(RolePod, NamespaceDiscovery{}, obj) |
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k8sDiscoveryTest{ |
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discovery: n, |
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afterStart: func() { |
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obj := makePods() |
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c.CoreV1().Pods(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{}) |
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}, |
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expectedMaxItems: 2, |
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expectedRes: expectedPodTargetGroups("default"), |
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}.Run(t) |
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} |
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func TestPodDiscoveryUpdateEmptyPodIP(t *testing.T) { |
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n, c := makeDiscovery(RolePod, NamespaceDiscovery{}) |
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initialPod := makePods() |
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updatedPod := makePods() |
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updatedPod.Status.PodIP = "" |
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k8sDiscoveryTest{ |
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discovery: n, |
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beforeRun: func() { |
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c.CoreV1().Pods(initialPod.Namespace).Create(context.Background(), initialPod, metav1.CreateOptions{}) |
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}, |
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afterStart: func() { |
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c.CoreV1().Pods(updatedPod.Namespace).Update(context.Background(), updatedPod, metav1.UpdateOptions{}) |
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}, |
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expectedMaxItems: 2, |
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expectedRes: map[string]*targetgroup.Group{ |
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"pod/default/testpod": { |
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Source: "pod/default/testpod", |
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}, |
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}, |
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}.Run(t) |
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} |
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func TestPodDiscoveryNamespaces(t *testing.T) { |
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n, c := makeDiscovery(RolePod, NamespaceDiscovery{Names: []string{"ns1", "ns2"}}) |
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expected := expectedPodTargetGroups("ns1") |
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for k, v := range expectedPodTargetGroups("ns2") { |
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expected[k] = v |
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} |
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k8sDiscoveryTest{ |
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discovery: n, |
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beforeRun: func() { |
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for _, ns := range []string{"ns1", "ns2"} { |
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pod := makePods() |
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pod.Namespace = ns |
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c.CoreV1().Pods(pod.Namespace).Create(context.Background(), pod, metav1.CreateOptions{}) |
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} |
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}, |
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expectedMaxItems: 2, |
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expectedRes: expected, |
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}.Run(t) |
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}
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