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Topology CRD is made by two different structs imported and abstracted from PodSpec [1]: 1. TopologySpreadConstraint 2. Affinity/AntiAffinity 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. [1] https://pkg.go.dev/k8s.io/api/core/v1#PodSpec Signed-off-by: Francesco Pantano <[email protected]>
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apis/bases/topology.openstack.org_topologies.yaml
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| /* | ||
| 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. | ||
| */ | ||
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| // Package v1beta1 contains API Schema definitions for the topology v1beta1 API group | ||
| // +kubebuilder:object:generate=true | ||
| // +groupName=topology.openstack.org | ||
| package v1beta1 | ||
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| import ( | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "sigs.k8s.io/controller-runtime/pkg/scheme" | ||
| ) | ||
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| var ( | ||
| // GroupVersion is group version used to register these objects | ||
| GroupVersion = schema.GroupVersion{Group: "topology.openstack.org", Version: "v1beta1"} | ||
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| // SchemeBuilder is used to add go types to the GroupVersionKind scheme | ||
| SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion} | ||
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| // AddToScheme adds the types in this group-version to the given scheme. | ||
| AddToScheme = SchemeBuilder.AddToScheme | ||
| ) |
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| /* | ||
| 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. | ||
| */ | ||
|
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| package v1beta1 | ||
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| import ( | ||
| "context" | ||
| "github.com/openstack-k8s-operators/lib-common/modules/common/affinity" | ||
| "github.com/openstack-k8s-operators/lib-common/modules/common/util" | ||
| "github.com/openstack-k8s-operators/lib-common/modules/common/helper" | ||
| corev1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| ) | ||
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| // TopologySpec defines the desired state of Topology | ||
| type TopologySpec struct { | ||
| // +kubebuilder:validation:Optional | ||
| // APITopologySpreadConstraint exposes topologySpreadConstraint that are | ||
| // applied to the StatefulSet | ||
| TopologySpreadConstraint *[]corev1.TopologySpreadConstraint `json:"topologySpreadConstraint,omitempty"` | ||
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| // APIAffinity exposes PodAffinity and PodAntiaffinity overrides that are applied | ||
| // to StatefulSet/Deployments | ||
| // +optional | ||
| APIAffinity *affinity.OverrideSpec `json:"affinity,omitempty"` | ||
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| //TODO: We could add NodeSelector here as it belongs to the same APIGroup | ||
| } | ||
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| // TopologyStatus defines the observed state of Topology | ||
| type TopologyStatus struct { | ||
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| // ObservedGeneration - the most recent generation observed for this | ||
| // service. If the observed generation is less than the spec generation, | ||
| // then the controller has not processed the latest changes injected by | ||
| // the opentack-operator in the top-level CR (e.g. the ContainerImage) | ||
| ObservedGeneration int64 `json:"observedGeneration,omitempty"` | ||
| } | ||
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| //+kubebuilder:object:root=true | ||
| //+kubebuilder:subresource:status | ||
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| // Topology is the Schema for the topologies API | ||
| type Topology struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ObjectMeta `json:"metadata,omitempty"` | ||
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| Spec TopologySpec `json:"spec,omitempty"` | ||
| Status TopologyStatus `json:"status,omitempty"` | ||
| } | ||
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| //+kubebuilder:object:root=true | ||
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| // TopologyList contains a list of Topology | ||
| type TopologyList struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ListMeta `json:"metadata,omitempty"` | ||
| Items []Topology `json:"items"` | ||
| } | ||
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| func init() { | ||
| SchemeBuilder.Register(&Topology{}, &TopologyList{}) | ||
| } | ||
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| // 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) { | ||
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| topology := &Topology{} | ||
| var hash string = "" | ||
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| 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 | ||
| } |
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