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v0.4.1 Latest Latest
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 Go to latest Published: Apr 11, 2024 License: Apache-2.0 Imports: 38 Imported by: 37

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Index

Constants

View Source 
const (
	// DefaultReclaimedMilliCPURequest defines default milli reclaimed milli-cpu request number.
	DefaultReclaimedMilliCPURequest int64 = 100 // 0.1 core
	// DefaultReclaimedMemoryRequest defines default reclaimed memory request size.
	DefaultReclaimedMemoryRequest int64 = 200 * 1024 * 1024 // 200 MiB
)

For each of these resources, a pod that doesn't request the resource explicitly will be treated as having requested the amount indicated below, for the purpose of computing priority only. This ensures that when scheduling zero-request pods, such pods will not all be scheduled to the machine with the smallest in-use request, and that when scheduling regular pods, such pods will not see zero-request pods as consuming no resources whatsoever. We chose these values to be similar to the resources that we give to cluster addon pods (#10653). But they are pretty arbitrary. As described in #11713, we use request instead of limit to deal with resource requirements.

View Source 
const ContainerMetricPortName = "metrics"
View Source 
const ContainerMetricStorePortName = "store"

Variables

View Source 
var GetPodHostIPs = func(pod *v1.Pod) ([]string, bool) {
	ip, ok := GetPodHostIP(pod)
	if !ok {
		return []string{}, false
	}
	return []string{ip}, true
}

Functions

func AddResources 

func AddResources(a, b v1.ResourceList) v1.ResourceList

AddResources sums up two ResourceList, and returns the summed as results.

func AggregateAvgQuantities added in v0.4.1 

func AggregateAvgQuantities(quantities []resource.Quantity) *resource.Quantity

AggregateAvgQuantities get the average of the quantities

func AggregateMaxQuantities added in v0.4.1 

func AggregateMaxQuantities(quantities []resource.Quantity) *resource.Quantity

AggregateMaxQuantities get the maximum of the quantities

func AggregateSumQuantities added in v0.4.1 

func AggregateSumQuantities(quantities []resource.Quantity) *resource.Quantity

AggregateSumQuantities get the sum of quantities

func ApplyPodResources 

func ApplyPodResources(resources map[string]v1.ResourceRequirements, pod *v1.Pod)

ApplyPodResources is used to apply map[string]v1.ResourceRequirements to the given pod, and ignore the container-names / resource-names that not appear in the given map param

func CalculateResource added in v0.4.0 

func CalculateResource(pod *v1.Pod) v1.ResourceList

CalculateResource resourceRequest = max(sum(podSpec.Containers), podSpec.InitContainers)

func CheckContainerNotRunning added in v0.3.0 

func CheckContainerNotRunning(pod *v1.Pod, containerName string) (bool, error)

CheckContainerNotRunning returns whether the given container is not-runnin

func CheckDaemonPod 

func CheckDaemonPod(pod *v1.Pod) bool

CheckDaemonPod returns true if pod is for DaemonSet

func CheckObjectEqual 

func CheckObjectEqual(obj1, obj2 metav1.Object) bool

CheckObjectEqual returns true if uid equals or the namespace/name pair equal

func CheckQosClassChanged 

func CheckQosClassChanged(resources map[string]v1.ResourceRequirements, pod *v1.Pod) (bool, error)

CheckQosClassChanged checks whether the pod's QosClass will change if annotationResources are applied to this pod

func DeepCopyPodContainers added in v0.2.0 

func DeepCopyPodContainers(pod *v1.Pod) (containers []v1.Container)

DeepCopyPodContainers returns a deep-copied objects for v1.Container slice

func DefaultCPUQuantityGetter added in v0.4.0 

func DefaultCPUQuantityGetter(resourceList v1.ResourceList) resource.Quantity

DefaultCPUQuantityGetter returns cpu quantity for resourceList. since we may have different representations for cpu resource name, the prioritizes will be: native cpu name -> reclaimed milli cpu name

func DefaultMemoryQuantityGetter added in v0.4.0 

func DefaultMemoryQuantityGetter(resourceList v1.ResourceList) resource.Quantity

DefaultMemoryQuantityGetter returns memory quantity for resourceList. since we may have different representations for memory resource name, the prioritizes will be: native memory name -> reclaimed memory name

func EmitResourceMetrics 

func EmitResourceMetrics(name string, resourceList v1.ResourceList,
	tags map[string]string, emitter metrics.MetricEmitter)

EmitResourceMetrics emit metrics for given ResourceList.

func FilterOutDeletingUnstructured 

func FilterOutDeletingUnstructured(objList []*unstructured.Unstructured) []*unstructured.Unstructured

func FilterOutSkipEvictionPods 

func FilterOutSkipEvictionPods(pods []*v1.Pod, filterOutAnnotations, filterOutLabels sets.String) []*v1.Pod

FilterOutSkipEvictionPods return pods should be candidates to evict including native critical pods and user-defined filtered pods

func FilterPodAnnotations added in v0.2.0 

func FilterPodAnnotations(filterKeys []string, pod *v1.Pod) map[string]string

FilterPodAnnotations returns the needed annotations for the given pod.

func FilterPods 

func FilterPods(pods []*v1.Pod, filterFunc func(*v1.Pod) (bool, error)) []*v1.Pod

FilterPods filter pods that filter func return true.

func GenerateContainerName 

func GenerateContainerName(containerName string) consts.ContainerName

GenerateContainerName return a unique key for a container

func GenerateDynamicResourceByGVR added in v0.2.0 

func GenerateDynamicResourceByGVR(gvr schema.GroupVersionResource) string

GenerateDynamicResourceByGVR generates dynamic resource by given gvr, the format is such as `resource.version.group`, which can be input of ParseResourceArg

func GenerateNamespaceNameKey 

func GenerateNamespaceNameKey(namespace, name string) string

GenerateNamespaceNameKey generate uniq key by concatenating namespace and name.

func GenerateObjectOwnerReferenceKey 

func GenerateObjectOwnerReferenceKey(reference metav1.OwnerReference) string

GenerateObjectOwnerReferenceKey is to generate a unique key by owner reference

func GeneratePodContainerName 

func GeneratePodContainerName(podName, containerName string) consts.PodContainerName

GeneratePodContainerName return a unique key for a container in a pod

func GenerateUniqGVRNameKey 

func GenerateUniqGVRNameKey(gvr string, workload metav1.Object) (string, error)

GenerateUniqGVRNameKey generate a uniq key (without UID) for the GVR and its corresponding object.

func GenerateUniqObjectNameKey 

func GenerateUniqObjectNameKey(obj metav1.Object) string

GenerateUniqObjectNameKey generate a uniq key (without UID) for the given object.

func GenerateUniqObjectUIDKey 

func GenerateUniqObjectUIDKey(obj metav1.Object) string

GenerateUniqObjectUIDKey generate a uniq key (including UID) for the given object.

func GetAndUnmarshalForHttps added in v0.3.0 

func GetAndUnmarshalForHttps(ctx context.Context, port int, nodeAddress, endpoint, authTokenFile string, v interface{}) error

GetAndUnmarshalForHttps gets data from the given url and unmarshal it into the given struct.

func GetContainerEnvs added in v0.2.0 

func GetContainerEnvs(pod *v1.Pod, containerName string, envs ...string) map[string]string

GetContainerEnvs gets container envs from pod spec by container name and envs name

func GetContainerID added in v0.2.0 

func GetContainerID(pod *v1.Pod, containerName string) (string, error)

GetContainerID gets container id from pod status by container name

func GetNamespacedNameListFromSlice 

func GetNamespacedNameListFromSlice(podSlice []*v1.Pod) []string

GetNamespacedNameListFromSlice returns a slice of namespaced name

func GetNonzeroQoSRequests 

func GetNonzeroQoSRequests(requests *v1.ResourceList) (int64, int64)

GetNonzeroQoSRequests returns the default reclaimed_millicpu and reclaimed_memory resource request if none is found or what is provided on the request.

func GetPodCondition added in v0.2.0 

func GetPodCondition(pod *v1.Pod, conditionType v1.PodConditionType) (v1.PodCondition, bool)

GetPodCondition extracts the given condition for the given pod

func GetPodHostIP 

func GetPodHostIP(pod *v1.Pod) (string, bool)

func GetPodListForWorkload 

func GetPodListForWorkload(workloadObj runtime.Object, podIndexer cache.Indexer, labelKeyList []string, podLister corelisters.PodLister) ([]*core.Pod, error)

GetPodListForWorkload returns pod list that belong to the given workload we will use label selector to find pods, and this may require that the given workload is limited to several selected objects.

func GetPodNamespaceNameKeyMap 

func GetPodNamespaceNameKeyMap(podList []*v1.Pod) map[string]*v1.Pod

func GetPodTransformer added in v0.2.0 

func GetPodTransformer() (cache.TransformFunc, bool)

func GetRequestForQoSResource 

func GetRequestForQoSResource(resource v1.ResourceName, requests *v1.ResourceList, nonZero bool) int64

GetRequestForQoSResource returns the requested values unless nonZero is true and there is no defined request for CPU and memory. If nonZero is true and the resource has no defined request for CPU or memory, it returns a default value.

func GetUnstructuredPodTemplateSpec added in v0.4.1 

func GetUnstructuredPodTemplateSpec(object *unstructured.Unstructured) (*v1.PodTemplateSpec, error)

func GetUnstructuredSelector 

func GetUnstructuredSelector(object *unstructured.Unstructured) (labels.Selector, error)

GetUnstructuredSelector parse a unstructured object and return its labelSelector (for pods)

func GetUnstructuredTemplateAnnotations added in v0.4.0 

func GetUnstructuredTemplateAnnotations(object *unstructured.Unstructured) (map[string]string, error)

GetUnstructuredTemplateAnnotations parse a unstructured object and return its template's annotations (for workload like deployments, statefulsets)

func IsAssignedPod 

func IsAssignedPod(pod *v1.Pod) bool

IsAssignedPod selects pods that are assigned (scheduled and running).

func IsResourceGreaterThan 

func IsResourceGreaterThan(a resource.Quantity, b resource.Quantity) bool

IsResourceGreaterThan checks if recommended resource is scaling down

func MergeResources 

func MergeResources(updateList ...*v1.ResourceList) *v1.ResourceList

MergeResources merge multi ResourceList into one ResourceList, the resource of same resource name in all ResourceList we only use the first merged one.

func MultiplyMilliQuantity added in v0.4.0 

func MultiplyMilliQuantity(quantity resource.Quantity, y float64) resource.Quantity

MultiplyMilliQuantity scales quantity by y.

func MultiplyQuantity added in v0.4.0 

func MultiplyQuantity(quantity resource.Quantity, y float64) resource.Quantity

MultiplyQuantity scales quantity by y.

func MultiplyResourceQuantity added in v0.4.0 

func MultiplyResourceQuantity(resourceName v1.ResourceName, quantity resource.Quantity, y float64) resource.Quantity

MultiplyResourceQuantity scales quantity according to its resource name.

func NewPodSourceImpList 

func NewPodSourceImpList(pods []*v1.Pod) general.SourceList

func NodeReady 

func NodeReady(node *v1.Node) bool

func ObjectOwnerReferenceIndex 

func ObjectOwnerReferenceIndex(o interface{}) ([]string, error)

ObjectOwnerReferenceIndex is used by informer to index a resource by owner

func ParseContainerName 

func ParseContainerName(key consts.ContainerName) string

ParseContainerName parse key and return container name

func ParseHostPortForPod added in v0.4.0 

func ParseHostPortForPod(pod *v1.Pod, portName string) (int32, bool)

ParseHostPortForPod gets host ports from pod spec

func ParseHostPortsForContainer 

func ParseHostPortsForContainer(container *v1.Container, portName string) (int32, bool)

ParseHostPortsForContainer gets host port from container spec

func ParseNamespaceNameUIDKey added in v0.4.0 

func ParseNamespaceNameUIDKey(key string) (string, string, string, error)

ParseNamespaceNameUIDKey parse the given key into namespace/name/uid

func ParsePodContainerName 

func ParsePodContainerName(key consts.PodContainerName) (string, string, error)

ParsePodContainerName parse key and return pod name and container name

func ParseUniqGVRNameKey 

func ParseUniqGVRNameKey(key string) (gvr string, namespace string, name string, err error)

ParseUniqGVRNameKey parse the given key into GVR and namespace/name

func ParseUniqObjectUIDKey added in v0.4.0 

func ParseUniqObjectUIDKey(key string) (namespace string, name string, uid string, err error)

ParseUniqObjectUIDKey parse the given key into namespace, name and uid

func PodAndContainersAreTerminal 

func PodAndContainersAreTerminal(pod *v1.Pod) (containersTerminal, podWorkerTerminal bool)

func PodAnnotationFilter 

func PodAnnotationFilter(pod *v1.Pod, key, value string) bool

PodAnnotationFilter is used to filter pods annotated with a pair of specific key and value

func PodCPURequestCmpFunc 

func PodCPURequestCmpFunc(i1, i2 interface{}) int

PodCPURequestCmpFunc sorts cpu request of pods with less comparison

func PodIsActive 

func PodIsActive(pod *v1.Pod) bool

PodIsActive returns whether the pod is not terminated.

func PodIsPending added in v0.4.0 

func PodIsPending(pod *v1.Pod) bool

PodIsPending returns whether the pod is pending.

func PodIsReady 

func PodIsReady(pod *v1.Pod) bool

PodIsReady returns whether the pod is at ready state.

func PodIsTerminated 

func PodIsTerminated(pod *v1.Pod) bool

PodIsTerminated returns whether the pod is at terminal state.

func PodPriorityCmpFunc 

func PodPriorityCmpFunc(i1, i2 interface{}) int

PodPriorityCmpFunc sorts priority of pods with greater comparison

func PodResourceDiff 

func PodResourceDiff(pod *v1.Pod, containerResourcesToUpdate map[string]v1.ResourceRequirements) bool

PodResourceDiff checks if pod resources are not the same as the given resource map, both for requests and limits.

func PodUniqKeyCmpFunc added in v0.4.0 

func PodUniqKeyCmpFunc(i1, i2 interface{}) int

PodUniqKeyCmpFunc sorts uniq key of pod with greater comparison

func ResourceQuantityToInt64Value 

func ResourceQuantityToInt64Value(resourceName v1.ResourceName, quantity resource.Quantity) int64

ResourceQuantityToInt64Value returns the int64 value according to its resource name

func ResourcesEqual 

func ResourcesEqual(a, b v1.ResourceList) bool

ResourcesEqual checks whether the given resources are equal with each other

func SetCPUQuantityGetter added in v0.4.0 

func SetCPUQuantityGetter(getter QuantityGetter)

func SetMemoryQuantityGetter added in v0.4.0 

func SetMemoryQuantityGetter(getter QuantityGetter)

func SetPodTransformer added in v0.4.1 

func SetPodTransformer(f PodTransformerFunc)

func SumUpPodLimitResources 

func SumUpPodLimitResources(pod *v1.Pod) v1.ResourceList

SumUpPodLimitResources sum up resources in all containers request init container is included (count on the max limit of all init containers)

func SumUpPodRequestResources 

func SumUpPodRequestResources(pod *v1.Pod) v1.ResourceList

SumUpPodRequestResources sum up resources in all containers request init container is included (count on the max request of all init containers)

func ToSchemaGVR 

func ToSchemaGVR(group, version, resource string) schema.GroupVersionResource

func ToUnstructured 

func ToUnstructured(obj interface{}) (*unstructured.Unstructured, error)

func TrimContainerIDPrefix 

func TrimContainerIDPrefix(id string) string

TrimContainerIDPrefix is used to parse the specific containerID out of the whole containerID info

func VisitUnstructuredAncestors 

func VisitUnstructuredAncestors(object *unstructured.Unstructured, unstructuredMap map[schema.GroupVersionKind]cache.GenericLister,
	handleFunc func(owner *unstructured.Unstructured) bool) bool

VisitUnstructuredAncestors is to walk through all the ancestors of the given object, during this process, we will try to handle each ancestor with the given util function. if the handleFunc returns true, it means that we should continue the walking process for other ancestors, otherwise, we break the process and return.

Types

type DynamicInformer added in v0.2.0 

type DynamicInformer struct {
	GVK      schema.GroupVersionKind
	GVR      schema.GroupVersionResource
	Informer informers.GenericInformer
}

DynamicInformer keeps the informer-related contents for each workload

type DynamicResourcesManager added in v0.2.0 

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

func NewDynamicResourcesManager added in v0.2.0 

func NewDynamicResourcesManager(
	dynamicResources []string,
	mapper *dynamicmapper.RegeneratingDiscoveryRESTMapper,
	dynamicInformerFactory dynamicinformer.DynamicSharedInformerFactory,
) (*DynamicResourcesManager, error)

NewDynamicResourcesManager initializes a dynamic resources manger to manage dynamic informers

func (*DynamicResourcesManager) GetDynamicInformers added in v0.2.0 

func (m *DynamicResourcesManager) GetDynamicInformers() map[string]DynamicInformer

GetDynamicInformers gets current dynamic informers

func (*DynamicResourcesManager) Run added in v0.2.0 

func (m *DynamicResourcesManager) Run(ctx context.Context)

Run start mapper to refresh starts a goroutine to check if it has new gvr support available, and if so, panics to restart to make sure all caches are correct

type PodLabelIndexer 

type PodLabelIndexer string

func (PodLabelIndexer) IndexFunc 

func (p PodLabelIndexer) IndexFunc(obj interface{}) ([]string, error)

IndexFunc is used to construct informer index for labels in pod

type PodResource added in v0.4.0 

type PodResource map[string]v1.ResourceList

PodResource key: namespace/name, value: pod requested ResourceList

func (*PodResource) AddPod added in v0.4.0 

func (pr *PodResource) AddPod(pod *v1.Pod) bool

func (*PodResource) DeletePod added in v0.4.0 

func (pr *PodResource) DeletePod(pod *v1.Pod) bool

type PodSourceList 

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

func (*PodSourceList) GetSource 

func (pl *PodSourceList) GetSource(index int) interface{}

func (*PodSourceList) Len 

func (pl *PodSourceList) Len() int

func (*PodSourceList) SetSource 

func (pl *PodSourceList) SetSource(index int, p interface{})

type PodTransformerFunc added in v0.2.0 

type PodTransformerFunc func(src, dest *corev1.Pod)

type QoSResource 

type QoSResource struct {
	ReclaimedMilliCPU int64
	ReclaimedMemory   int64
}

QoSResource is a collection of compute resource.

func CalculateQoSResource 

func CalculateQoSResource(pod *v1.Pod) (res QoSResource, non0CPU int64, non0Mem int64)

CalculateQoSResource calculates the QoS Resource of a Pod resourceRequest = max(sum(podSpec.Containers), podSpec.InitContainers) + overHead

func (*QoSResource) Add 

func (r *QoSResource) Add(rl v1.ResourceList)

Add adds ResourceList into QoSResource.

func (*QoSResource) SetMaxResource 

func (r *QoSResource) SetMaxResource(rl v1.ResourceList)

SetMaxResource compares with ResourceList and takes max value for each QoSResource.

type QuantityGetter added in v0.4.0 

type QuantityGetter func(resourceList v1.ResourceList) resource.Quantity

func CPUQuantityGetter added in v0.4.0 

func CPUQuantityGetter() QuantityGetter

func MemoryQuantityGetter added in v0.4.0 

func MemoryQuantityGetter() QuantityGetter

type ResourceThreshold added in v0.2.0 

type ResourceThreshold map[v1.ResourceName]float64

ResourceThreshold is map of resource name to threshold of water level

func (*ResourceThreshold) Set added in v0.2.0 

func (t *ResourceThreshold) Set(value string) error

func (*ResourceThreshold) String added in v0.2.0 

func (t *ResourceThreshold) String() string

func (*ResourceThreshold) Type added in v0.2.0 

func (t *ResourceThreshold) Type() string

Source Files

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