watcher

package
v1.4.0 Latest Latest
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 Go to latest Published: Mar 21, 2025 License: Apache-2.0 Imports: 20 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

func AddPodInformer added in v1.4.0 

func AddPodInformer(w *K8sWatcher, local bool) error

func GetK8sClients added in v1.4.0 

func GetK8sClients(waitCRDs func(*rest.Config) error) (*kubernetes.Clientset, *versioned.Clientset, error)

Types

type FakeK8sWatcher 

type FakeK8sWatcher struct {
	// contains filtered or unexported fields
}

FakeK8sWatcher is used as an "empty" PodAccessor when --enable-k8s-api flag is not set. It is also used for testing, allowing users to specify a static list of pods.

func NewFakeK8sWatcher 

func NewFakeK8sWatcher(pods []interface{}) *FakeK8sWatcher

NewFakeK8sWatcher returns a pointer to an initialized FakeK8sWatcher struct.

func NewFakeK8sWatcherWithPodsAndServices added in v0.11.0 

func NewFakeK8sWatcherWithPodsAndServices(pods []interface{}, services []interface{}) *FakeK8sWatcher

NewFakeK8sWatcherWithPodsAndServices returns a pointer to an initialized FakeK8sWatcher struct

func (*FakeK8sWatcher) AddInformer added in v1.4.0 

func (watcher *FakeK8sWatcher) AddInformer(_ string, _ cache.SharedIndexInformer, _ cache.Indexers) error

func (*FakeK8sWatcher) AddPod added in v0.9.0 

func (watcher *FakeK8sWatcher) AddPod(pod *corev1.Pod)

AddPod adds a pod to the fake k8s watcher. This is intended for testing.

func (*FakeK8sWatcher) AddService added in v0.11.0 

func (watcher *FakeK8sWatcher) AddService(service *corev1.Service)

AddService adds a service to the fake k8s watcher.

func (*FakeK8sWatcher) ClearAllPods added in v0.9.0 

func (watcher *FakeK8sWatcher) ClearAllPods()

ClearPods() removes all pods from the fake watcher. This is intended for testing.

func (*FakeK8sWatcher) ClearAllServices added in v0.11.0 

func (watcher *FakeK8sWatcher) ClearAllServices()

ClearAllServices removes all services from the fake watcher.

func (*FakeK8sWatcher) FindContainer added in v0.9.0 

func (watcher *FakeK8sWatcher) FindContainer(containerID string) (*corev1.Pod, *corev1.ContainerStatus, bool)

FindContainer implements PodAccessor.FindContainer

func (*FakeK8sWatcher) FindMirrorPod added in v1.2.0 

func (watcher *FakeK8sWatcher) FindMirrorPod(_ string) (*corev1.Pod, error)

func (*FakeK8sWatcher) FindPod 

func (watcher *FakeK8sWatcher) FindPod(podID string) (*corev1.Pod, error)

func (*FakeK8sWatcher) GetCRDInformerFactory added in v1.4.0 

func (watcher *FakeK8sWatcher) GetCRDInformerFactory() externalversions.SharedInformerFactory

func (*FakeK8sWatcher) GetInformer added in v1.0.3 

func (watcher *FakeK8sWatcher) GetInformer(_ string) cache.SharedIndexInformer

func (*FakeK8sWatcher) GetK8sInformerFactory added in v1.4.0 

func (watcher *FakeK8sWatcher) GetK8sInformerFactory() informers.SharedInformerFactory

func (*FakeK8sWatcher) GetLocalK8sInformerFactory added in v1.4.0 

func (watcher *FakeK8sWatcher) GetLocalK8sInformerFactory() informers.SharedInformerFactory

func (*FakeK8sWatcher) Start added in v1.0.3 

func (watcher *FakeK8sWatcher) Start()

type K8sResourceWatcher 

type K8sResourceWatcher interface {
	Watcher
	PodAccessor
}

type K8sWatcher 

type K8sWatcher struct {
	// contains filtered or unexported fields
}

NB(anna): localK8sInformerFactory and deletedPodCache are relevant only when watching pods. If a K8sWatcher instance is e.g. watching only policies, they are unused. If needed, they can be factored out to make the K8sWatcher struct more generic.

func NewK8sWatcher 

func NewK8sWatcher(
	k8sClient kubernetes.Interface, crdClient versioned.Interface, stateSyncInterval time.Duration,
) *K8sWatcher

NewK8sWatcher creates a new K8sWatcher with initialized informer factories.

func (*K8sWatcher) AddInformer added in v1.4.0 

func (w *K8sWatcher) AddInformer(name string, informer cache.SharedIndexInformer, indexers cache.Indexers) error

func (*K8sWatcher) FindContainer added in v0.9.0 

func (watcher *K8sWatcher) FindContainer(containerID string) (*corev1.Pod, *corev1.ContainerStatus, bool)

FindContainer implements PodAccessor.FindContainer.

func (*K8sWatcher) FindMirrorPod added in v1.2.0 

func (watcher *K8sWatcher) FindMirrorPod(hash string) (*corev1.Pod, error)

FindMirrorPod finds the mirror pod of a static pod based on the hash see: https://kubernetes.io/docs/reference/labels-annotations-taints/#kubernetes-io-config-hash, https://kubernetes.io/docs/reference/labels-annotations-taints/#kubernetes-io-config-mirror, https://kubernetes.io/docs/tasks/configure-pod-container/static-pod/

func (*K8sWatcher) FindPod 

func (watcher *K8sWatcher) FindPod(podID string) (*corev1.Pod, error)

func (*K8sWatcher) GetCRDInformerFactory added in v1.4.0 

func (w *K8sWatcher) GetCRDInformerFactory() externalversions.SharedInformerFactory

func (*K8sWatcher) GetInformer added in v1.0.3 

func (w *K8sWatcher) GetInformer(name string) cache.SharedIndexInformer

func (*K8sWatcher) GetK8sInformerFactory added in v1.4.0 

func (w *K8sWatcher) GetK8sInformerFactory() informers.SharedInformerFactory

func (*K8sWatcher) GetLocalK8sInformerFactory added in v1.4.0 

func (w *K8sWatcher) GetLocalK8sInformerFactory() informers.SharedInformerFactory

func (*K8sWatcher) Start added in v1.0.3 

func (w *K8sWatcher) Start()

type PodAccessor added in v1.4.0 

type PodAccessor interface {
	// Find a pod/container pair for the given container ID.
	FindContainer(containerID string) (*corev1.Pod, *corev1.ContainerStatus, bool)
	// Find a pod given the podID
	FindPod(podID string) (*corev1.Pod, error)
	// Find a mirror pod for a static pod
	FindMirrorPod(hash string) (*corev1.Pod, error)
}

PodAccessor defines an interface for accessing pods from Kubernetes API.

type Watcher added in v1.4.0 

type Watcher interface {
	AddInformer(name string, informer cache.SharedIndexInformer, indexers cache.Indexers) error
	GetInformer(name string) cache.SharedIndexInformer
	Start()
	GetK8sInformerFactory() informers.SharedInformerFactory
	GetLocalK8sInformerFactory() informers.SharedInformerFactory
	GetCRDInformerFactory() externalversions.SharedInformerFactory
}

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