mirror of
https://github.com/k8sgpt-ai/k8sgpt.git
synced 2025-08-10 04:07:22 +00:00
358 lines
8.4 KiB
Go
358 lines
8.4 KiB
Go
/*
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Copyright 2023 The K8sGPT 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package analyzer
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import (
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"context"
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"sort"
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"testing"
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"github.com/k8sgpt-ai/k8sgpt/pkg/common"
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"github.com/k8sgpt-ai/k8sgpt/pkg/kubernetes"
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"github.com/stretchr/testify/require"
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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/client-go/kubernetes/fake"
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)
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func TestServiceAnalyzer(t *testing.T) {
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tests := []struct {
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name string
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config common.Analyzer
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expectations []struct {
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name string
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failuresCount int
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}
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}{
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{
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name: "Service with no endpoints",
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config: common.Analyzer{
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Client: &kubernetes.Client{
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Client: fake.NewSimpleClientset(
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&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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},
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Subsets: []v1.EndpointSubset{}, // Empty subsets
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},
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&v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{
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"app": "test",
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},
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},
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},
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),
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},
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Namespace: "default",
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},
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expectations: []struct {
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name string
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failuresCount int
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}{
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{
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name: "default/test-service",
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failuresCount: 1, // One failure for no endpoints
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},
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},
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},
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{
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name: "Service with not ready endpoints",
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config: common.Analyzer{
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Client: &kubernetes.Client{
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Client: fake.NewSimpleClientset(
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&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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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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NotReadyAddresses: []v1.EndpointAddress{
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{
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TargetRef: &v1.ObjectReference{
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Kind: "Pod",
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Name: "test-pod",
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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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&v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{
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"app": "test",
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},
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},
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},
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),
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},
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Namespace: "default",
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},
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expectations: []struct {
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name string
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failuresCount int
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}{
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{
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name: "default/test-service",
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failuresCount: 1, // One failure for not ready endpoints
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},
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},
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},
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{
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name: "Service with warning events",
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config: common.Analyzer{
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Client: &kubernetes.Client{
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Client: fake.NewSimpleClientset(
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&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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},
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Subsets: []v1.EndpointSubset{}, // Empty subsets
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},
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&v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{
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"app": "test",
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},
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},
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},
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&v1.Event{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-event",
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Namespace: "default",
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},
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InvolvedObject: v1.ObjectReference{
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Kind: "Service",
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Name: "test-service",
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Namespace: "default",
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},
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Type: "Warning",
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Reason: "TestReason",
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Message: "Test warning message",
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},
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),
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},
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Namespace: "default",
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},
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expectations: []struct {
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name string
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failuresCount int
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}{
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{
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name: "default/test-service",
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failuresCount: 2, // One failure for no endpoints, one for warning event
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},
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},
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},
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{
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name: "Service with leader election annotation",
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config: common.Analyzer{
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Client: &kubernetes.Client{
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Client: fake.NewSimpleClientset(
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&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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Annotations: map[string]string{
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"control-plane.alpha.kubernetes.io/leader": "test-leader",
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},
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},
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Subsets: []v1.EndpointSubset{}, // Empty subsets
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},
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&v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{
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"app": "test",
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},
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},
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},
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),
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},
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Namespace: "default",
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},
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expectations: []struct {
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name string
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failuresCount int
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}{
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// No expectations for leader election endpoints
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},
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},
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{
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name: "Service with non-existent service",
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config: common.Analyzer{
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Client: &kubernetes.Client{
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Client: fake.NewSimpleClientset(
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&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-service",
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Namespace: "default",
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},
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Subsets: []v1.EndpointSubset{}, // Empty subsets
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},
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),
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},
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Namespace: "default",
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},
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expectations: []struct {
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name string
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failuresCount int
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}{
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// No expectations for non-existent service
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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analyzer := ServiceAnalyzer{}
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results, err := analyzer.Analyze(tt.config)
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require.NoError(t, err)
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require.Len(t, results, len(tt.expectations))
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// Sort results by name for consistent comparison
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sort.Slice(results, func(i, j int) bool {
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return results[i].Name < results[j].Name
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})
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for i, expectation := range tt.expectations {
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require.Equal(t, expectation.name, results[i].Name)
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require.Len(t, results[i].Error, expectation.failuresCount)
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}
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})
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}
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}
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func TestServiceAnalyzerLabelSelectorFiltering(t *testing.T) {
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clientSet :=
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fake.NewSimpleClientset(
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&v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "Endpoint1",
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Namespace: "default",
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Labels: map[string]string{
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"app": "service",
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"part-of": "test",
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},
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},
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// Endpoint with non-zero subsets.
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Subsets: []v1.EndpointSubset{
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{
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// These not ready end points will contribute to failures.
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NotReadyAddresses: []v1.EndpointAddress{
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{
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TargetRef: &v1.ObjectReference{
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Kind: "test-reference",
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Name: "reference1",
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},
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},
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{
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TargetRef: &v1.ObjectReference{
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Kind: "test-reference",
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Name: "reference2",
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},
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},
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},
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},
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{
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// These not ready end points will contribute to failures.
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NotReadyAddresses: []v1.EndpointAddress{
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{
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TargetRef: &v1.ObjectReference{
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Kind: "test-reference",
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Name: "reference3",
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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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&v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "Service1",
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Namespace: "default",
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Labels: map[string]string{
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"app": "service",
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},
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{
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"app1": "test-app1",
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"app2": "test-app2",
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},
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},
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},
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&v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "Service2",
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Namespace: "default",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{
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"app1": "test-app1",
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"app2": "test-app2",
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},
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},
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},
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)
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config := common.Analyzer{
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Client: &kubernetes.Client{
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Client: clientSet,
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},
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Context: context.Background(),
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Namespace: "default",
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LabelSelector: "app=service",
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}
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sAnalyzer := ServiceAnalyzer{}
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results, err := sAnalyzer.Analyze(config)
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require.NoError(t, err)
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require.Equal(t, 1, len(results))
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require.Equal(t, "default/Endpoint1", results[0].Name)
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config = common.Analyzer{
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Client: &kubernetes.Client{
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Client: clientSet,
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},
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Context: context.Background(),
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Namespace: "default",
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LabelSelector: "app=service,part-of=test",
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}
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sAnalyzer = ServiceAnalyzer{}
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results, err = sAnalyzer.Analyze(config)
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require.NoError(t, err)
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require.Equal(t, 1, len(results))
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require.Equal(t, "default/Endpoint1", results[0].Name)
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}
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