Documentation
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Index ¶
- Variables
- type ExtenderArgs
- type ExtenderConfig
- type ExtenderFilterResult
- type FailedNodesMap
- type HostPriority
- type HostPriorityList
- type LabelPreference
- type LabelsPresence
- type Policy
- type PredicateArgument
- type PredicatePolicy
- type PriorityArgument
- type PriorityPolicy
- type ServiceAffinity
- type ServiceAntiAffinity
Constants ¶
This section is empty.
Variables ¶
var ( // TODO: move SchemeBuilder with zz_generated.deepcopy.go to k8s.io/api. // localSchemeBuilder and AddToScheme will stay in k8s.io/kubernetes. SchemeBuilder runtime.SchemeBuilder AddToScheme = localSchemeBuilder.AddToScheme )
var SchemeGroupVersion = schema.GroupVersion{Group: "", Version: "v1"}
SchemeGroupVersion is group version used to register these objects TODO this should be in the "scheduler" group
Functions ¶
This section is empty.
Types ¶
type ExtenderArgs ¶ added in v1.2.0
type ExtenderArgs struct { // Pod being scheduled Pod apiv1.Pod `json:"pod"` // List of candidate nodes where the pod can be scheduled; to be populated // only if ExtenderConfig.NodeCacheCapable == false Nodes *apiv1.NodeList `json:"nodes,omitempty"` // List of candidate node names where the pod can be scheduled; to be // populated only if ExtenderConfig.NodeCacheCapable == true NodeNames *[]string `json:"nodenames,omitempty"` }
ExtenderArgs represents the arguments needed by the extender to filter/prioritize nodes for a pod.
type ExtenderConfig ¶ added in v1.2.0
type ExtenderConfig struct { // URLPrefix at which the extender is available URLPrefix string `json:"urlPrefix"` // Verb for the filter call, empty if not supported. This verb is appended to the URLPrefix when issuing the filter call to extender. FilterVerb string `json:"filterVerb,omitempty"` // Verb for the prioritize call, empty if not supported. This verb is appended to the URLPrefix when issuing the prioritize call to extender. PrioritizeVerb string `json:"prioritizeVerb,omitempty"` // The numeric multiplier for the node scores that the prioritize call generates. // The weight should be a positive integer Weight int `json:"weight,omitempty"` // EnableHttps specifies whether https should be used to communicate with the extender EnableHttps bool `json:"enableHttps,omitempty"` // TLSConfig specifies the transport layer security config TLSConfig *restclient.TLSClientConfig `json:"tlsConfig,omitempty"` // HTTPTimeout specifies the timeout duration for a call to the extender. Filter timeout fails the scheduling of the pod. Prioritize // timeout is ignored, k8s/other extenders priorities are used to select the node. HTTPTimeout time.Duration `json:"httpTimeout,omitempty"` // NodeCacheCapable specifies that the extender is capable of caching node information, // so the scheduler should only send minimal information about the eligible nodes // assuming that the extender already cached full details of all nodes in the cluster NodeCacheCapable bool `json:"nodeCacheCapable,omitempty"` }
Holds the parameters used to communicate with the extender. If a verb is unspecified/empty, it is assumed that the extender chose not to provide that extension.
type ExtenderFilterResult ¶ added in v1.2.0
type ExtenderFilterResult struct { // Filtered set of nodes where the pod can be scheduled; to be populated // only if ExtenderConfig.NodeCacheCapable == false Nodes *apiv1.NodeList `json:"nodes,omitempty"` // Filtered set of nodes where the pod can be scheduled; to be populated // only if ExtenderConfig.NodeCacheCapable == true NodeNames *[]string `json:"nodenames,omitempty"` // Filtered out nodes where the pod can't be scheduled and the failure messages FailedNodes FailedNodesMap `json:"failedNodes,omitempty"` // Error message indicating failure Error string `json:"error,omitempty"` }
ExtenderFilterResult represents the results of a filter call to an extender
type FailedNodesMap ¶ added in v1.4.1
FailedNodesMap represents the filtered out nodes, with node names and failure messages
type HostPriority ¶ added in v1.2.0
type HostPriority struct { // Name of the host Host string `json:"host"` // Score associated with the host Score int `json:"score"` }
HostPriority represents the priority of scheduling to a particular host, higher priority is better.
type HostPriorityList ¶ added in v1.2.0
type HostPriorityList []HostPriority
func (HostPriorityList) Len ¶ added in v1.2.0
func (h HostPriorityList) Len() int
func (HostPriorityList) Less ¶ added in v1.2.0
func (h HostPriorityList) Less(i, j int) bool
func (HostPriorityList) Swap ¶ added in v1.2.0
func (h HostPriorityList) Swap(i, j int)
type LabelPreference ¶
type LabelPreference struct { // Used to identify node "groups" Label string `json:"label"` // This is a boolean flag // If true, higher priority is given to nodes that have the label // If false, higher priority is given to nodes that do not have the label Presence bool `json:"presence"` }
Holds the parameters that are used to configure the corresponding priority function
type LabelsPresence ¶
type LabelsPresence struct { // The list of labels that identify node "groups" // All of the labels should be either present (or absent) for the node to be considered a fit for hosting the pod Labels []string `json:"labels"` // The boolean flag that indicates whether the labels should be present or absent from the node Presence bool `json:"presence"` }
Holds the parameters that are used to configure the corresponding predicate
type Policy ¶
type Policy struct { metav1.TypeMeta `json:",inline"` // Holds the information to configure the fit predicate functions Predicates []PredicatePolicy `json:"predicates"` // Holds the information to configure the priority functions Priorities []PriorityPolicy `json:"priorities"` // Holds the information to communicate with the extender(s) ExtenderConfigs []ExtenderConfig `json:"extenders"` // RequiredDuringScheduling affinity is not symmetric, but there is an implicit PreferredDuringScheduling affinity rule // corresponding to every RequiredDuringScheduling affinity rule. // HardPodAffinitySymmetricWeight represents the weight of implicit PreferredDuringScheduling affinity rule, in the range 1-100. HardPodAffinitySymmetricWeight int `json:"hardPodAffinitySymmetricWeight"` }
type PredicateArgument ¶
type PredicateArgument struct { // The predicate that provides affinity for pods belonging to a service // It uses a label to identify nodes that belong to the same "group" ServiceAffinity *ServiceAffinity `json:"serviceAffinity"` // The predicate that checks whether a particular node has a certain label // defined or not, regardless of value LabelsPresence *LabelsPresence `json:"labelsPresence"` }
Represents the arguments that the different types of predicates take Only one of its members may be specified
type PredicatePolicy ¶
type PredicatePolicy struct { // Identifier of the predicate policy // For a custom predicate, the name can be user-defined // For the Kubernetes provided predicates, the name is the identifier of the pre-defined predicate Name string `json:"name"` // Holds the parameters to configure the given predicate Argument *PredicateArgument `json:"argument"` }
type PriorityArgument ¶
type PriorityArgument struct { // The priority function that ensures a good spread (anti-affinity) for pods belonging to a service // It uses a label to identify nodes that belong to the same "group" ServiceAntiAffinity *ServiceAntiAffinity `json:"serviceAntiAffinity"` // The priority function that checks whether a particular node has a certain label // defined or not, regardless of value LabelPreference *LabelPreference `json:"labelPreference"` }
Represents the arguments that the different types of priorities take. Only one of its members may be specified
type PriorityPolicy ¶
type PriorityPolicy struct { // Identifier of the priority policy // For a custom priority, the name can be user-defined // For the Kubernetes provided priority functions, the name is the identifier of the pre-defined priority function Name string `json:"name"` // The numeric multiplier for the node scores that the priority function generates // The weight should be non-zero and can be a positive or a negative integer Weight int `json:"weight"` // Holds the parameters to configure the given priority function Argument *PriorityArgument `json:"argument"` }
type ServiceAffinity ¶
type ServiceAffinity struct { // The list of labels that identify node "groups" // All of the labels should match for the node to be considered a fit for hosting the pod Labels []string `json:"labels"` }
Holds the parameters that are used to configure the corresponding predicate
type ServiceAntiAffinity ¶
type ServiceAntiAffinity struct { // Used to identify node "groups" Label string `json:"label"` }
Holds the parameters that are used to configure the corresponding priority function