From 466f65b1e000c3fe362162c4f373699cae7379cb Mon Sep 17 00:00:00 2001 From: Francesco Pantano Date: Tue, 3 Dec 2024 12:18:03 +0100 Subject: [PATCH] Add Topology CRD Topology CRD is made by two different structs imported and abstracted from PodSpec [1]: 1. TopologySpreadConstraint 2. Affinity The above seems enough to draft a dedicated CR instead of exposing those parameters through the service operators' API. In addition, Affinity/AntiAffinity is imported from PodSpec [1] and can override the default affinity policy defined in lib-common through DistributePods function. [1] https://pkg.go.dev/k8s.io/api/core/v1#PodSpec Signed-off-by: Francesco Pantano --- .../topology.openstack.org_topologies.yaml | 1118 +++++++++++++++++ apis/topology/v1beta1/groupversion_info.go | 36 + apis/topology/v1beta1/topology_types.go | 97 ++ .../topology/v1beta1/zz_generated.deepcopy.go | 115 ++ .../topology.openstack.org_topologies.yaml | 1118 +++++++++++++++++ config/crd/kustomization.yaml | 3 + .../cainjection_in_topology_topologies.yaml | 7 + .../webhook_in_topology_topologies.yaml | 16 + .../rbac/topology_topology_editor_role.yaml | 31 + .../rbac/topology_topology_viewer_role.yaml | 27 + config/samples/kustomization.yaml | 1 + config/samples/topology_v1beta1_topology.yaml | 12 + main.go | 2 + 13 files changed, 2583 insertions(+) create mode 100644 apis/bases/topology.openstack.org_topologies.yaml create mode 100644 apis/topology/v1beta1/groupversion_info.go create mode 100644 apis/topology/v1beta1/topology_types.go create mode 100644 apis/topology/v1beta1/zz_generated.deepcopy.go create mode 100644 config/crd/bases/topology.openstack.org_topologies.yaml create mode 100644 config/crd/patches/cainjection_in_topology_topologies.yaml create mode 100644 config/crd/patches/webhook_in_topology_topologies.yaml create mode 100644 config/rbac/topology_topology_editor_role.yaml create mode 100644 config/rbac/topology_topology_viewer_role.yaml create mode 100644 config/samples/topology_v1beta1_topology.yaml diff --git a/apis/bases/topology.openstack.org_topologies.yaml b/apis/bases/topology.openstack.org_topologies.yaml new file mode 100644 index 00000000..09b857f7 --- /dev/null +++ b/apis/bases/topology.openstack.org_topologies.yaml @@ -0,0 +1,1118 @@ +--- +apiVersion: apiextensions.k8s.io/v1 +kind: CustomResourceDefinition +metadata: + annotations: + controller-gen.kubebuilder.io/version: v0.14.0 + name: topologies.topology.openstack.org +spec: + 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 + required: + - key + - operator + type: object + type: array + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 + required: + - key + - operator + type: object + type: array + type: object + x-kubernetes-map-type: atomic + type: array + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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. + + + This is a beta field and requires the MinDomainsInPodTopologySpread feature gate to be enabled (enabled by default). + 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 + type: object + served: true + storage: true + subresources: + status: {} diff --git a/apis/topology/v1beta1/groupversion_info.go b/apis/topology/v1beta1/groupversion_info.go new file mode 100644 index 00000000..66ade8d0 --- /dev/null +++ b/apis/topology/v1beta1/groupversion_info.go @@ -0,0 +1,36 @@ +/* +Copyright 2025. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +// Package v1beta1 contains API Schema definitions for the topology v1beta1 API group +// +kubebuilder:object:generate=true +// +groupName=topology.openstack.org +package v1beta1 + +import ( + "k8s.io/apimachinery/pkg/runtime/schema" + "sigs.k8s.io/controller-runtime/pkg/scheme" +) + +var ( + // GroupVersion is group version used to register these objects + GroupVersion = schema.GroupVersion{Group: "topology.openstack.org", Version: "v1beta1"} + + // SchemeBuilder is used to add go types to the GroupVersionKind scheme + SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion} + + // AddToScheme adds the types in this group-version to the given scheme. + AddToScheme = SchemeBuilder.AddToScheme +) diff --git a/apis/topology/v1beta1/topology_types.go b/apis/topology/v1beta1/topology_types.go new file mode 100644 index 00000000..0d6ebefc --- /dev/null +++ b/apis/topology/v1beta1/topology_types.go @@ -0,0 +1,97 @@ +/* +Copyright 2024. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package v1beta1 + +import ( + "context" + "github.com/openstack-k8s-operators/lib-common/modules/common/helper" + "github.com/openstack-k8s-operators/lib-common/modules/common/util" + "k8s.io/apimachinery/pkg/util/validation/field" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/types" +) + +// TopologySpec defines the desired state of Topology +type TopologySpec struct { + // +kubebuilder:validation:Optional + // TopologySpreadConstraints exposes topologySpreadConstraints that are + // applied to the StatefulSet + TopologySpreadConstraints *[]corev1.TopologySpreadConstraint `json:"topologySpreadConstraints,omitempty"` + + // Affinity exposes PodAffinity, PodAntiaffinity and NodeAffinity overrides + // that are applied to StatefulSet/Deployments + Affinity *corev1.Affinity `json:"affinity,omitempty"` + + //TODO: We could add NodeSelector here as it belongs to the same APIGroup +} + +//+kubebuilder:object:root=true +//+kubebuilder:subresource:status + +// Topology is the Schema for the topologies API +type Topology struct { + metav1.TypeMeta `json:",inline"` + metav1.ObjectMeta `json:"metadata,omitempty"` + Spec TopologySpec `json:"spec,omitempty"` +} + +//+kubebuilder:object:root=true + +// TopologyList contains a list of Topology +type TopologyList struct { + metav1.TypeMeta `json:",inline"` + metav1.ListMeta `json:"metadata,omitempty"` + Items []Topology `json:"items"` +} + +func init() { + SchemeBuilder.Register(&Topology{}, &TopologyList{}) +} + +// GetTopologyByName - a function exposed to the service operators +// that need to retrieve the referenced topology by name +func GetTopologyByName( + ctx context.Context, + h *helper.Helper, + name string, + namespace string, +) (*Topology, string, error) { + + topology := &Topology{} + var hash string = "" + + err := h.GetClient().Get(ctx, types.NamespacedName{Name: name, Namespace: namespace}, topology) + if err != nil { + return topology, "", err + } + hash, err = util.ObjectHash(topology.Spec) + if err != nil { + return topology, "", err + } + return topology, hash, nil +} + +// ValidateTopologyNamespace - returns a field.Error when the Service +// references a Topoology deployed on a different namespace +func ValidateTopologyNamespace(refNs string, basePath field.Path, validNs string) (*field.Error) { + if refNs != "" && refNs != validNs { + topologyNamespace := basePath.Child("topology").Key("namespace") + return field.Invalid(topologyNamespace, "namespace", "Customizing namespace field is not supported") + } + return nil +} diff --git a/apis/topology/v1beta1/zz_generated.deepcopy.go b/apis/topology/v1beta1/zz_generated.deepcopy.go new file mode 100644 index 00000000..d227e47b --- /dev/null +++ b/apis/topology/v1beta1/zz_generated.deepcopy.go @@ -0,0 +1,115 @@ +//go:build !ignore_autogenerated + +/* +Copyright 2023. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +// Code generated by controller-gen. DO NOT EDIT. + +package v1beta1 + +import ( + "k8s.io/api/core/v1" + runtime "k8s.io/apimachinery/pkg/runtime" +) + +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *Topology) DeepCopyInto(out *Topology) { + *out = *in + out.TypeMeta = in.TypeMeta + in.ObjectMeta.DeepCopyInto(&out.ObjectMeta) + in.Spec.DeepCopyInto(&out.Spec) +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Topology. +func (in *Topology) DeepCopy() *Topology { + if in == nil { + return nil + } + out := new(Topology) + in.DeepCopyInto(out) + return out +} + +// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object. +func (in *Topology) DeepCopyObject() runtime.Object { + if c := in.DeepCopy(); c != nil { + return c + } + return nil +} + +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *TopologyList) DeepCopyInto(out *TopologyList) { + *out = *in + out.TypeMeta = in.TypeMeta + in.ListMeta.DeepCopyInto(&out.ListMeta) + if in.Items != nil { + in, out := &in.Items, &out.Items + *out = make([]Topology, len(*in)) + for i := range *in { + (*in)[i].DeepCopyInto(&(*out)[i]) + } + } +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TopologyList. +func (in *TopologyList) DeepCopy() *TopologyList { + if in == nil { + return nil + } + out := new(TopologyList) + in.DeepCopyInto(out) + return out +} + +// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object. +func (in *TopologyList) DeepCopyObject() runtime.Object { + if c := in.DeepCopy(); c != nil { + return c + } + return nil +} + +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *TopologySpec) DeepCopyInto(out *TopologySpec) { + *out = *in + if in.TopologySpreadConstraints != nil { + in, out := &in.TopologySpreadConstraints, &out.TopologySpreadConstraints + *out = new([]v1.TopologySpreadConstraint) + if **in != nil { + in, out := *in, *out + *out = make([]v1.TopologySpreadConstraint, len(*in)) + for i := range *in { + (*in)[i].DeepCopyInto(&(*out)[i]) + } + } + } + if in.Affinity != nil { + in, out := &in.Affinity, &out.Affinity + *out = new(v1.Affinity) + (*in).DeepCopyInto(*out) + } +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TopologySpec. +func (in *TopologySpec) DeepCopy() *TopologySpec { + if in == nil { + return nil + } + out := new(TopologySpec) + in.DeepCopyInto(out) + return out +} diff --git a/config/crd/bases/topology.openstack.org_topologies.yaml b/config/crd/bases/topology.openstack.org_topologies.yaml new file mode 100644 index 00000000..09b857f7 --- /dev/null +++ b/config/crd/bases/topology.openstack.org_topologies.yaml @@ -0,0 +1,1118 @@ +--- +apiVersion: apiextensions.k8s.io/v1 +kind: CustomResourceDefinition +metadata: + annotations: + controller-gen.kubebuilder.io/version: v0.14.0 + name: topologies.topology.openstack.org +spec: + 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 + required: + - key + - operator + type: object + type: array + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 + required: + - key + - operator + type: object + type: array + type: object + x-kubernetes-map-type: atomic + type: array + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate. + 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 + required: + - key + - operator + type: object + type: array + 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 + 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 + 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 + required: + - key + - operator + type: object + type: array + 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. + + + This is a beta field and requires the MinDomainsInPodTopologySpread feature gate to be enabled (enabled by default). + 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 + type: object + served: true + storage: true + subresources: + status: {} diff --git a/config/crd/kustomization.yaml b/config/crd/kustomization.yaml index 5719edfd..3f864116 100644 --- a/config/crd/kustomization.yaml +++ b/config/crd/kustomization.yaml @@ -12,6 +12,7 @@ resources: - bases/network.openstack.org_ipsets.yaml - bases/network.openstack.org_reservations.yaml - bases/network.openstack.org_bgpconfigurations.yaml +- bases/topology.openstack.org_topologies.yaml #+kubebuilder:scaffold:crdkustomizeresource patchesStrategicMerge: @@ -26,6 +27,7 @@ patchesStrategicMerge: #- patches/webhook_in_reservations.yaml #- patches/webhook_in_ipsets.yaml #- patches/webhook_in_bgpconfigurations.yaml +#- patches/webhook_in_topologies.yaml #+kubebuilder:scaffold:crdkustomizewebhookpatch # [CERTMANAGER] To enable cert-manager, uncomment all the sections with [CERTMANAGER] prefix. @@ -39,6 +41,7 @@ patchesStrategicMerge: #- patches/cainjection_in_reservations.yaml #- patches/cainjection_in_ipsets.yaml #- patches/cainjection_in_bgpconfigurations.yaml +#- patches/cainjection_in_topologies.yaml #+kubebuilder:scaffold:crdkustomizecainjectionpatch # the following config is for teaching kustomize how to do kustomization for CRDs. diff --git a/config/crd/patches/cainjection_in_topology_topologies.yaml b/config/crd/patches/cainjection_in_topology_topologies.yaml new file mode 100644 index 00000000..e38d7aff --- /dev/null +++ b/config/crd/patches/cainjection_in_topology_topologies.yaml @@ -0,0 +1,7 @@ +# The following patch adds a directive for certmanager to inject CA into the CRD +apiVersion: apiextensions.k8s.io/v1 +kind: CustomResourceDefinition +metadata: + annotations: + cert-manager.io/inject-ca-from: $(CERTIFICATE_NAMESPACE)/$(CERTIFICATE_NAME) + name: topologies.topology.openstack.org diff --git a/config/crd/patches/webhook_in_topology_topologies.yaml b/config/crd/patches/webhook_in_topology_topologies.yaml new file mode 100644 index 00000000..e72222f8 --- /dev/null +++ b/config/crd/patches/webhook_in_topology_topologies.yaml @@ -0,0 +1,16 @@ +# The following patch enables a conversion webhook for the CRD +apiVersion: apiextensions.k8s.io/v1 +kind: CustomResourceDefinition +metadata: + name: topologies.topology.openstack.org +spec: + conversion: + strategy: Webhook + webhook: + clientConfig: + service: + namespace: system + name: webhook-service + path: /convert + conversionReviewVersions: + - v1 diff --git a/config/rbac/topology_topology_editor_role.yaml b/config/rbac/topology_topology_editor_role.yaml new file mode 100644 index 00000000..bf0ae185 --- /dev/null +++ b/config/rbac/topology_topology_editor_role.yaml @@ -0,0 +1,31 @@ +# permissions for end users to edit topologies. +apiVersion: rbac.authorization.k8s.io/v1 +kind: ClusterRole +metadata: + labels: + app.kubernetes.io/name: clusterrole + app.kubernetes.io/instance: topology-editor-role + app.kubernetes.io/component: rbac + app.kubernetes.io/created-by: infra-operator + app.kubernetes.io/part-of: infra-operator + app.kubernetes.io/managed-by: kustomize + name: topology-editor-role +rules: +- apiGroups: + - topology.openstack.org + resources: + - topologies + verbs: + - create + - delete + - get + - list + - patch + - update + - watch +- apiGroups: + - topology.openstack.org + resources: + - topologies/status + verbs: + - get diff --git a/config/rbac/topology_topology_viewer_role.yaml b/config/rbac/topology_topology_viewer_role.yaml new file mode 100644 index 00000000..fff61412 --- /dev/null +++ b/config/rbac/topology_topology_viewer_role.yaml @@ -0,0 +1,27 @@ +# permissions for end users to view topologies. +apiVersion: rbac.authorization.k8s.io/v1 +kind: ClusterRole +metadata: + labels: + app.kubernetes.io/name: clusterrole + app.kubernetes.io/instance: topology-viewer-role + app.kubernetes.io/component: rbac + app.kubernetes.io/created-by: infra-operator + app.kubernetes.io/part-of: infra-operator + app.kubernetes.io/managed-by: kustomize + name: topology-viewer-role +rules: +- apiGroups: + - topology.openstack.org + resources: + - topologies + verbs: + - get + - list + - watch +- apiGroups: + - topology.openstack.org + resources: + - topologies/status + verbs: + - get diff --git a/config/samples/kustomization.yaml b/config/samples/kustomization.yaml index 0415831f..6cbc0801 100644 --- a/config/samples/kustomization.yaml +++ b/config/samples/kustomization.yaml @@ -10,4 +10,5 @@ resources: - network_v1beta1_ipset.yaml - network_v1beta1_reservation.yaml - network_v1beta1_bgpconfiguration.yaml +- topology_v1beta1_topology.yaml #+kubebuilder:scaffold:manifestskustomizesamples diff --git a/config/samples/topology_v1beta1_topology.yaml b/config/samples/topology_v1beta1_topology.yaml new file mode 100644 index 00000000..e45117fd --- /dev/null +++ b/config/samples/topology_v1beta1_topology.yaml @@ -0,0 +1,12 @@ +apiVersion: topology.openstack.org/v1beta1 +kind: Topology +metadata: + labels: + app.kubernetes.io/name: topology + app.kubernetes.io/instance: topology-sample + app.kubernetes.io/part-of: infra-operator + app.kubernetes.io/managed-by: kustomize + app.kubernetes.io/created-by: infra-operator + name: topology-sample +spec: + # TODO(user): Add fields here diff --git a/main.go b/main.go index f6a17453..2e152414 100644 --- a/main.go +++ b/main.go @@ -48,6 +48,7 @@ import ( networkv1 "github.com/openstack-k8s-operators/infra-operator/apis/network/v1beta1" rabbitmqv1beta1 "github.com/openstack-k8s-operators/infra-operator/apis/rabbitmq/v1beta1" redisv1 "github.com/openstack-k8s-operators/infra-operator/apis/redis/v1beta1" + topologyv1beta1 "github.com/openstack-k8s-operators/infra-operator/apis/topology/v1beta1" instancehacontrollers "github.com/openstack-k8s-operators/infra-operator/controllers/instanceha" memcachedcontrollers "github.com/openstack-k8s-operators/infra-operator/controllers/memcached" networkcontrollers "github.com/openstack-k8s-operators/infra-operator/controllers/network" @@ -72,6 +73,7 @@ func init() { utilruntime.Must(networkv1.AddToScheme(scheme)) utilruntime.Must(frrk8sv1.AddToScheme(scheme)) utilruntime.Must(k8s_networkv1.AddToScheme(scheme)) + utilruntime.Must(topologyv1beta1.AddToScheme(scheme)) //+kubebuilder:scaffold:scheme }