Documentation

Index

Constants

View Source
const DefaultMemoryRequest int64 = 200 * 1024 * 1024 // 200 MB
View Source
const DefaultMilliCpuRequest int64 = 100 // 0.1 core

    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.

    Variables

    This section is empty.

    Functions

    func GetControllerRef

    func GetControllerRef(pod *v1.Pod) *metav1.OwnerReference

    func GetNamespacesFromPodAffinityTerm

    func GetNamespacesFromPodAffinityTerm(pod *v1.Pod, podAffinityTerm *v1.PodAffinityTerm) sets.String

      GetNamespacesFromPodAffinityTerm returns a set of names according to the namespaces indicated in podAffinityTerm. If namespaces is empty it considers the given pod's namespace.

      func GetNonzeroRequests

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

        GetNonzeroRequests returns the default resource request if none is found or what is provided on the request TODO: Consider setting default as a fixed fraction of machine capacity (take "capacity v1.ResourceList" as an additional argument here) rather than using constants

        func NodesHaveSameTopologyKey

        func NodesHaveSameTopologyKey(nodeA, nodeB *v1.Node, topologyKey string) bool

          NodesHaveSameTopologyKey checks if nodeA and nodeB have same label value with given topologyKey as label key. Returns false if topologyKey is empty.

          func PodMatchesTermsNamespaceAndSelector

          func PodMatchesTermsNamespaceAndSelector(pod *v1.Pod, namespaces sets.String, selector labels.Selector) bool

            PodMatchesTermsNamespaceAndSelector returns true if the given <pod> matches the namespace and selector defined by <affinityPod>`s <term>.

            Types

            type Topologies

            type Topologies struct {
            	DefaultKeys []string
            }

            func (*Topologies) NodesHaveSameTopologyKey

            func (tps *Topologies) NodesHaveSameTopologyKey(nodeA, nodeB *v1.Node, topologyKey string) bool

              NodesHaveSameTopologyKey checks if nodeA and nodeB have same label value with given topologyKey as label key. If the topologyKey is empty, check if the two nodes have any of the default topologyKeys, and have same corresponding label value.