apiVersion: apiextensions.k8s.io/v1 kind: CustomResourceDefinition metadata: annotations: controller-gen.kubebuilder.io/version: v0.18.0 creationTimestamp: "2026-04-04T02:17:05Z" generation: 1 name: topologies.topology.openstack.org resourceVersion: "38830" uid: abbc7f46-a69f-441c-8063-917f54687295 spec: conversion: strategy: None group: topology.openstack.org names: kind: Topology listKind: TopologyList plural: topologies singular: topology scope: Namespaced versions: - name: v1beta1 schema: openAPIV3Schema: description: Topology is the Schema for the topologies API properties: apiVersion: description: |- APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources type: string kind: description: |- Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds type: string metadata: type: object spec: description: TopologySpec defines the desired state of Topology properties: affinity: description: |- Affinity exposes PodAffinity, PodAntiaffinity and NodeAffinity overrides that are applied to StatefulSet/Deployments properties: nodeAffinity: description: Describes node affinity scheduling rules for the pod. properties: preferredDuringSchedulingIgnoredDuringExecution: description: |- The scheduler will prefer to schedule pods to nodes that satisfy the affinity expressions specified by this field, but it may choose a node that violates one or more of the expressions. The node that is most preferred is the one with the greatest sum of weights, i.e. for each node that meets all of the scheduling requirements (resource request, requiredDuringScheduling affinity expressions, etc.), compute a sum by iterating through the elements of this field and adding "weight" to the sum if the node matches the corresponding matchExpressions; the node(s) with the highest sum are the most preferred. items: description: |- An empty preferred scheduling term matches all objects with implicit weight 0 (i.e. it's a no-op). A null preferred scheduling term matches no objects (i.e. is also a no-op). properties: preference: description: A node selector term, associated with the corresponding weight. properties: matchExpressions: description: A list of node selector requirements by node's labels. items: description: |- A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: The label key that the selector applies to. type: string operator: description: |- Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. type: string values: description: |- An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchFields: description: A list of node selector requirements by node's fields. items: description: |- A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: The label key that the selector applies to. type: string operator: description: |- Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. type: string values: description: |- An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic type: object x-kubernetes-map-type: atomic weight: description: Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100. format: int32 type: integer required: - preference - weight type: object type: array x-kubernetes-list-type: atomic requiredDuringSchedulingIgnoredDuringExecution: description: |- If the affinity requirements specified by this field are not met at scheduling time, the pod will not be scheduled onto the node. If the affinity requirements specified by this field cease to be met at some point during pod execution (e.g. due to an update), the system may or may not try to eventually evict the pod from its node. properties: nodeSelectorTerms: description: Required. A list of node selector terms. The terms are ORed. items: description: |- A null or empty node selector term matches no objects. The requirements of them are ANDed. The TopologySelectorTerm type implements a subset of the NodeSelectorTerm. properties: matchExpressions: description: A list of node selector requirements by node's labels. items: description: |- A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: The label key that the selector applies to. type: string operator: description: |- Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. type: string values: description: |- An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchFields: description: A list of node selector requirements by node's fields. items: description: |- A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: The label key that the selector applies to. type: string operator: description: |- Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. type: string values: description: |- An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic type: object x-kubernetes-map-type: atomic type: array x-kubernetes-list-type: atomic required: - nodeSelectorTerms type: object x-kubernetes-map-type: atomic type: object podAffinity: description: Describes pod affinity scheduling rules (e.g. co-locate this pod in the same node, zone, etc. as some other pod(s)). properties: preferredDuringSchedulingIgnoredDuringExecution: description: |- The scheduler will prefer to schedule pods to nodes that satisfy the affinity expressions specified by this field, but it may choose a node that violates one or more of the expressions. The node that is most preferred is the one with the greatest sum of weights, i.e. for each node that meets all of the scheduling requirements (resource request, requiredDuringScheduling affinity expressions, etc.), compute a sum by iterating through the elements of this field and adding "weight" to the sum if the node has pods which matches the corresponding podAffinityTerm; the node(s) with the highest sum are the most preferred. items: description: The weights of all of the matched WeightedPodAffinityTerm fields are added per-node to find the most preferred node(s) properties: podAffinityTerm: description: Required. A pod affinity term, associated with the corresponding weight. properties: labelSelector: description: |- A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic matchLabelKeys: description: |- MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic mismatchLabelKeys: description: |- MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic namespaceSelector: description: |- A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic namespaces: description: |- namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace". items: type: string type: array x-kubernetes-list-type: atomic topologyKey: description: |- This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed. type: string required: - topologyKey type: object weight: description: |- weight associated with matching the corresponding podAffinityTerm, in the range 1-100. format: int32 type: integer required: - podAffinityTerm - weight type: object type: array x-kubernetes-list-type: atomic requiredDuringSchedulingIgnoredDuringExecution: description: |- If the affinity requirements specified by this field are not met at scheduling time, the pod will not be scheduled onto the node. If the affinity requirements specified by this field cease to be met at some point during pod execution (e.g. due to a pod label update), the system may or may not try to eventually evict the pod from its node. When there are multiple elements, the lists of nodes corresponding to each podAffinityTerm are intersected, i.e. all terms must be satisfied. items: description: |- Defines a set of pods (namely those matching the labelSelector relative to the given namespace(s)) that this pod should be co-located (affinity) or not co-located (anti-affinity) with, where co-located is defined as running on a node whose value of the label with key matches that of any node on which a pod of the set of pods is running properties: labelSelector: description: |- A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic matchLabelKeys: description: |- MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic mismatchLabelKeys: description: |- MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic namespaceSelector: description: |- A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic namespaces: description: |- namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace". items: type: string type: array x-kubernetes-list-type: atomic topologyKey: description: |- This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed. type: string required: - topologyKey type: object type: array x-kubernetes-list-type: atomic type: object podAntiAffinity: description: Describes pod anti-affinity scheduling rules (e.g. avoid putting this pod in the same node, zone, etc. as some other pod(s)). properties: preferredDuringSchedulingIgnoredDuringExecution: description: |- The scheduler will prefer to schedule pods to nodes that satisfy the anti-affinity expressions specified by this field, but it may choose a node that violates one or more of the expressions. The node that is most preferred is the one with the greatest sum of weights, i.e. for each node that meets all of the scheduling requirements (resource request, requiredDuringScheduling anti-affinity expressions, etc.), compute a sum by iterating through the elements of this field and adding "weight" to the sum if the node has pods which matches the corresponding podAffinityTerm; the node(s) with the highest sum are the most preferred. items: description: The weights of all of the matched WeightedPodAffinityTerm fields are added per-node to find the most preferred node(s) properties: podAffinityTerm: description: Required. A pod affinity term, associated with the corresponding weight. properties: labelSelector: description: |- A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic matchLabelKeys: description: |- MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic mismatchLabelKeys: description: |- MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic namespaceSelector: description: |- A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic namespaces: description: |- namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace". items: type: string type: array x-kubernetes-list-type: atomic topologyKey: description: |- This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed. type: string required: - topologyKey type: object weight: description: |- weight associated with matching the corresponding podAffinityTerm, in the range 1-100. format: int32 type: integer required: - podAffinityTerm - weight type: object type: array x-kubernetes-list-type: atomic requiredDuringSchedulingIgnoredDuringExecution: description: |- If the anti-affinity requirements specified by this field are not met at scheduling time, the pod will not be scheduled onto the node. If the anti-affinity requirements specified by this field cease to be met at some point during pod execution (e.g. due to a pod label update), the system may or may not try to eventually evict the pod from its node. When there are multiple elements, the lists of nodes corresponding to each podAffinityTerm are intersected, i.e. all terms must be satisfied. items: description: |- Defines a set of pods (namely those matching the labelSelector relative to the given namespace(s)) that this pod should be co-located (affinity) or not co-located (anti-affinity) with, where co-located is defined as running on a node whose value of the label with key matches that of any node on which a pod of the set of pods is running properties: labelSelector: description: |- A label query over a set of resources, in this case pods. If it's null, this PodAffinityTerm matches with no Pods. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic matchLabelKeys: description: |- MatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key in (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both matchLabelKeys and labelSelector. Also, matchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic mismatchLabelKeys: description: |- MismatchLabelKeys is a set of pod label keys to select which pods will be taken into consideration. The keys are used to lookup values from the incoming pod labels, those key-value labels are merged with `labelSelector` as `key notin (value)` to select the group of existing pods which pods will be taken into consideration for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming pod labels will be ignored. The default value is empty. The same key is forbidden to exist in both mismatchLabelKeys and labelSelector. Also, mismatchLabelKeys cannot be set when labelSelector isn't set. This is a beta field and requires enabling MatchLabelKeysInPodAffinity feature gate (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic namespaceSelector: description: |- A label query over the set of namespaces that the term applies to. The term is applied to the union of the namespaces selected by this field and the ones listed in the namespaces field. null selector and null or empty namespaces list means "this pod's namespace". An empty selector ({}) matches all namespaces. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic namespaces: description: |- namespaces specifies a static list of namespace names that the term applies to. The term is applied to the union of the namespaces listed in this field and the ones selected by namespaceSelector. null or empty namespaces list and null namespaceSelector means "this pod's namespace". items: type: string type: array x-kubernetes-list-type: atomic topologyKey: description: |- This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching the labelSelector in the specified namespaces, where co-located is defined as running on a node whose value of the label with key topologyKey matches that of any node on which any of the selected pods is running. Empty topologyKey is not allowed. type: string required: - topologyKey type: object type: array x-kubernetes-list-type: atomic type: object type: object topologySpreadConstraints: description: |- TopologySpreadConstraints exposes topologySpreadConstraints that are applied to the StatefulSet items: description: TopologySpreadConstraint specifies how to spread matching pods among the given topology. properties: labelSelector: description: |- LabelSelector is used to find matching pods. Pods that match this label selector are counted to determine the number of pods in their corresponding topology domain. properties: matchExpressions: description: matchExpressions is a list of label selector requirements. The requirements are ANDed. items: description: |- A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. properties: key: description: key is the label key that the selector applies to. type: string operator: description: |- operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. type: string values: description: |- values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch. items: type: string type: array x-kubernetes-list-type: atomic required: - key - operator type: object type: array x-kubernetes-list-type: atomic matchLabels: additionalProperties: type: string description: |- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed. type: object type: object x-kubernetes-map-type: atomic matchLabelKeys: description: |- MatchLabelKeys is a set of pod label keys to select the pods over which spreading will be calculated. The keys are used to lookup values from the incoming pod labels, those key-value labels are ANDed with labelSelector to select the group of existing pods over which spreading will be calculated for the incoming pod. The same key is forbidden to exist in both MatchLabelKeys and LabelSelector. MatchLabelKeys cannot be set when LabelSelector isn't set. Keys that don't exist in the incoming pod labels will be ignored. A null or empty list means only match against labelSelector. This is a beta field and requires the MatchLabelKeysInPodTopologySpread feature gate to be enabled (enabled by default). items: type: string type: array x-kubernetes-list-type: atomic maxSkew: description: |- MaxSkew describes the degree to which pods may be unevenly distributed. When `whenUnsatisfiable=DoNotSchedule`, it is the maximum permitted difference between the number of matching pods in the target topology and the global minimum. The global minimum is the minimum number of matching pods in an eligible domain or zero if the number of eligible domains is less than MinDomains. For example, in a 3-zone cluster, MaxSkew is set to 1, and pods with the same labelSelector spread as 2/2/1: In this case, the global minimum is 1. | zone1 | zone2 | zone3 | | P P | P P | P | - if MaxSkew is 1, incoming pod can only be scheduled to zone3 to become 2/2/2; scheduling it onto zone1(zone2) would make the ActualSkew(3-1) on zone1(zone2) violate MaxSkew(1). - if MaxSkew is 2, incoming pod can be scheduled onto any zone. When `whenUnsatisfiable=ScheduleAnyway`, it is used to give higher precedence to topologies that satisfy it. It's a required field. Default value is 1 and 0 is not allowed. format: int32 type: integer minDomains: description: |- MinDomains indicates a minimum number of eligible domains. When the number of eligible domains with matching topology keys is less than minDomains, Pod Topology Spread treats "global minimum" as 0, and then the calculation of Skew is performed. And when the number of eligible domains with matching topology keys equals or greater than minDomains, this value has no effect on scheduling. As a result, when the number of eligible domains is less than minDomains, scheduler won't schedule more than maxSkew Pods to those domains. If value is nil, the constraint behaves as if MinDomains is equal to 1. Valid values are integers greater than 0. When value is not nil, WhenUnsatisfiable must be DoNotSchedule. For example, in a 3-zone cluster, MaxSkew is set to 2, MinDomains is set to 5 and pods with the same labelSelector spread as 2/2/2: | zone1 | zone2 | zone3 | | P P | P P | P P | The number of domains is less than 5(MinDomains), so "global minimum" is treated as 0. In this situation, new pod with the same labelSelector cannot be scheduled, because computed skew will be 3(3 - 0) if new Pod is scheduled to any of the three zones, it will violate MaxSkew. format: int32 type: integer nodeAffinityPolicy: description: |- NodeAffinityPolicy indicates how we will treat Pod's nodeAffinity/nodeSelector when calculating pod topology spread skew. Options are: - Honor: only nodes matching nodeAffinity/nodeSelector are included in the calculations. - Ignore: nodeAffinity/nodeSelector are ignored. All nodes are included in the calculations. If this value is nil, the behavior is equivalent to the Honor policy. This is a beta-level feature default enabled by the NodeInclusionPolicyInPodTopologySpread feature flag. type: string nodeTaintsPolicy: description: |- NodeTaintsPolicy indicates how we will treat node taints when calculating pod topology spread skew. Options are: - Honor: nodes without taints, along with tainted nodes for which the incoming pod has a toleration, are included. - Ignore: node taints are ignored. All nodes are included. If this value is nil, the behavior is equivalent to the Ignore policy. This is a beta-level feature default enabled by the NodeInclusionPolicyInPodTopologySpread feature flag. type: string topologyKey: description: |- TopologyKey is the key of node labels. Nodes that have a label with this key and identical values are considered to be in the same topology. We consider each as a "bucket", and try to put balanced number of pods into each bucket. We define a domain as a particular instance of a topology. Also, we define an eligible domain as a domain whose nodes meet the requirements of nodeAffinityPolicy and nodeTaintsPolicy. e.g. If TopologyKey is "kubernetes.io/hostname", each Node is a domain of that topology. And, if TopologyKey is "topology.kubernetes.io/zone", each zone is a domain of that topology. It's a required field. type: string whenUnsatisfiable: description: |- WhenUnsatisfiable indicates how to deal with a pod if it doesn't satisfy the spread constraint. - DoNotSchedule (default) tells the scheduler not to schedule it. - ScheduleAnyway tells the scheduler to schedule the pod in any location, but giving higher precedence to topologies that would help reduce the skew. A constraint is considered "Unsatisfiable" for an incoming pod if and only if every possible node assignment for that pod would violate "MaxSkew" on some topology. For example, in a 3-zone cluster, MaxSkew is set to 1, and pods with the same labelSelector spread as 3/1/1: | zone1 | zone2 | zone3 | | P P P | P | P | If WhenUnsatisfiable is set to DoNotSchedule, incoming pod can only be scheduled to zone2(zone3) to become 3/2/1(3/1/2) as ActualSkew(2-1) on zone2(zone3) satisfies MaxSkew(1). In other words, the cluster can still be imbalanced, but scheduler won't make it *more* imbalanced. It's a required field. type: string required: - maxSkew - topologyKey - whenUnsatisfiable type: object type: array type: object status: description: TopologyStatus defines the observed state of Topology type: object type: object served: true storage: true subresources: status: {} status: acceptedNames: kind: Topology listKind: TopologyList plural: topologies singular: topology conditions: - lastTransitionTime: "2026-04-04T02:17:05Z" message: no conflicts found reason: NoConflicts status: "True" type: NamesAccepted - lastTransitionTime: "2026-04-04T02:17:05Z" message: the initial names have been accepted reason: InitialNamesAccepted status: "True" type: Established storedVersions: - v1beta1