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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package controllers | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/sirupsen/logrus" | ||
| "github.com/supporttools/KubeWatchman/monitoring" | ||
| v1 "k8s.io/api/core/v1" | ||
| "k8s.io/client-go/informers" | ||
| "k8s.io/client-go/tools/cache" | ||
| ) | ||
|
|
||
| func NewPodMonitorController(clientset KubernetesClientset, logger *logrus.Logger) *PodMonitorController { | ||
| return &PodMonitorController{ | ||
| Clientset: clientset, | ||
| Logger: logger.WithField("controller", "PodMonitorController"), | ||
| podStatuses: make(map[string]int), | ||
| } | ||
| } | ||
|
|
||
| func (n *PodMonitorController) Start() error { | ||
| monitoring.ControllerStatus("PodMonitorController", true) | ||
| factory := informers.NewSharedInformerFactory(n.Clientset, time.Minute) | ||
| PodInformer := factory.Core().V1().Pods().Informer() | ||
|
|
||
| PodInformer.AddEventHandler(cache.ResourceEventHandlerFuncs{ | ||
| AddFunc: n.onAdd, | ||
| UpdateFunc: n.onUpdate, | ||
| DeleteFunc: n.onDelete, | ||
| }) | ||
|
|
||
| n.stopCh = make(chan struct{}) | ||
| go PodInformer.Run(n.stopCh) | ||
|
|
||
| if !cache.WaitForCacheSync(n.stopCh, PodInformer.HasSynced) { | ||
| logrus.Error("Timed out waiting for caches to sync") | ||
| return fmt.Errorf("timed out waiting for caches to sync") | ||
| } | ||
|
|
||
| logrus.Debug("Pod informer synced successfully") | ||
| return nil | ||
| } | ||
|
|
||
| func (n *PodMonitorController) Stop() error { | ||
| monitoring.ControllerStatus("PodMonitorController", false) | ||
| close(n.stopCh) | ||
| return nil | ||
| } | ||
|
|
||
| func (n *PodMonitorController) logPodDetails(Pod *v1.Pod, event string) { | ||
| n.Logger.Infof("Pod %s: %s (status: %s)", event, Pod.Name, Pod.Status.Phase) | ||
| n.Logger.Debug("Pod Details: ", Pod.Status, Pod.Status.Conditions, Pod.Annotations, Pod.Labels, Pod.Finalizers, Pod.Status.PodIP) | ||
| } | ||
|
|
||
| func (n *PodMonitorController) onAdd(obj interface{}) { | ||
| Pod := obj.(*v1.Pod) | ||
| n.logPodDetails(Pod, "added") | ||
| monitoring.PodCountChange("inc") | ||
| status := string(Pod.Status.Phase) | ||
| n.podStatuses[status]++ | ||
| monitoring.UpdatePodStatus(status, float64(n.podStatuses[status])) | ||
| } | ||
|
|
||
| func (n *PodMonitorController) onUpdate(oldObj, newObj interface{}) { | ||
| oldPod := oldObj.(*v1.Pod) | ||
| newPod := newObj.(*v1.Pod) | ||
| n.logPodDetails(newPod, "updated") | ||
|
|
||
| oldStatus := string(oldPod.Status.Phase) | ||
| newStatus := string(newPod.Status.Phase) | ||
| n.podStatuses[oldStatus]-- | ||
| n.podStatuses[newStatus]++ | ||
| monitoring.UpdatePodStatus(oldStatus, float64(n.podStatuses[oldStatus])) | ||
| monitoring.UpdatePodStatus(newStatus, float64(n.podStatuses[newStatus])) | ||
|
|
||
| oldSummary := monitoring.CreatePodSummary(oldPod) | ||
| newSummary := monitoring.CreatePodSummary(newPod) | ||
|
|
||
| for _, container := range oldSummary.Containers { | ||
| if container.IsCrashLooping { | ||
| n.CrashLoopingCount-- | ||
| } | ||
| } | ||
|
|
||
| for _, container := range newSummary.Containers { | ||
| if container.IsCrashLooping { | ||
| n.CrashLoopingCount++ | ||
| } | ||
| } | ||
|
|
||
| monitoring.UpdatePodStatus("CrashLoopBackOff", float64(n.CrashLoopingCount)) | ||
| } | ||
|
|
||
| func (n *PodMonitorController) onDelete(obj interface{}) { | ||
| Pod, ok := obj.(*v1.Pod) | ||
| if !ok { | ||
| fmt.Println("Delete event with incorrect type:", obj) | ||
| return | ||
| } | ||
| n.logPodDetails(Pod, "deleted") | ||
| monitoring.PodCountChange("dec") | ||
| status := string(Pod.Status.Phase) | ||
| n.podStatuses[status]-- | ||
| monitoring.UpdatePodStatus(status, float64(n.podStatuses[status])) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package controllers_test | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/sirupsen/logrus/hooks/test" | ||
| "github.com/stretchr/testify/mock" | ||
| "github.com/supporttools/KubeWatchman/controllers" | ||
| "k8s.io/client-go/kubernetes/fake" | ||
| "k8s.io/client-go/rest" | ||
| ) | ||
|
|
||
| func TestPodMonitorControllerStart(t *testing.T) { | ||
| // Create a fake clientset | ||
| fakeClientset := fake.NewSimpleClientset() | ||
|
|
||
| // Create a mock factory | ||
| mockFactory := new(MockClusterConnectionFactory) | ||
| mockFactory.On("NewForConfig", mock.Anything).Return(fakeClientset, nil) | ||
|
|
||
| // Use the mock factory to create a Clientset | ||
| clientset, err := mockFactory.NewForConfig(&rest.Config{}) | ||
| if err != nil { | ||
| t.Errorf("Failed to create clientset: %v", err) | ||
| } | ||
|
|
||
| // Create a logger and hook for testing | ||
| logger, _ := test.NewNullLogger() | ||
|
|
||
| // Create the PodMonitorController using the clientset | ||
| controller := controllers.NewPodMonitorController(clientset, logger) // Use clientset here directly | ||
|
|
||
| // Start the controller | ||
| if err := controller.Start(); err != nil { | ||
| t.Errorf("Failed to start controller: %v", err) | ||
| } | ||
|
|
||
| // Additional testing logic needed here | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| package controllers_test | ||
|
|
||
| import ( | ||
| "github.com/stretchr/testify/mock" | ||
| "k8s.io/client-go/kubernetes/fake" | ||
| "k8s.io/client-go/rest" | ||
| ) | ||
|
|
||
| type MockClusterConnectionFactory struct { | ||
| mock.Mock | ||
| } | ||
|
|
||
| func (m *MockClusterConnectionFactory) NewForConfig(config *rest.Config) (*fake.Clientset, error) { | ||
| args := m.Called(config) | ||
| return args.Get(0).(*fake.Clientset), args.Error(1) | ||
| } |
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