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Introduce a new API named WorkloadRebalancer to support rescheduling
Signed-off-by: chaosi-zju <chaosi@zju.edu.cn>
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| /* | ||
| Copyright 2024 The Karmada Authors. | ||
| 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 v1alpha1 is the v1alpha1 version of the API. | ||
| // +k8s:deepcopy-gen=package,register | ||
| // +k8s:openapi-gen=true | ||
| // +groupName=apps.karmada.io | ||
| package v1alpha1 |
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| /* | ||
| Copyright 2024 The Karmada Authors. | ||
| 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 v1alpha1 | ||
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| import metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
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| const ( | ||
| // ResourceKindWorkloadRebalancer is kind name of WorkloadRebalancer. | ||
| ResourceKindWorkloadRebalancer = "WorkloadRebalancer" | ||
| // ResourceSingularWorkloadRebalancer is singular name of WorkloadRebalancer. | ||
| ResourceSingularWorkloadRebalancer = "workloadrebalancer" | ||
| // ResourcePluralWorkloadRebalancer is kind plural name of WorkloadRebalancer. | ||
| ResourcePluralWorkloadRebalancer = "workloadrebalancers" | ||
| // ResourceNamespaceScopedWorkloadRebalancer indicates if WorkloadRebalancer is NamespaceScoped. | ||
| ResourceNamespaceScopedWorkloadRebalancer = false | ||
| ) | ||
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| // +genclient | ||
| // +genclient:nonNamespaced | ||
| // +kubebuilder:resource:path=workloadrebalancers,scope="Cluster",shortName=wr,categories={karmada-io} | ||
| // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object | ||
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| // WorkloadRebalancer represents the desired behavior and status of a job which can enforces a rescheduling. | ||
| // | ||
| // Notes: make sure the clocks of controller-manager and scheduler are synchronized when using this API. | ||
| type WorkloadRebalancer struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ObjectMeta `json:"metadata,omitempty"` | ||
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| // Spec represents the specification of the desired behavior of WorkloadRebalancer. | ||
| // +required | ||
| Spec WorkloadRebalancerSpec `json:"spec"` | ||
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| // Status represents the status of WorkloadRebalancer. | ||
| // +optional | ||
| Status WorkloadRebalancerStatus `json:"status,omitempty"` | ||
| } | ||
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| // WorkloadRebalancerSpec represents the specification of the desired behavior of Reschedule. | ||
| // | ||
| // Notes: this API represents a one-time execution process, once the object is created, the execution process begins, | ||
| // and it will not respond to any modification of the spec field. | ||
| type WorkloadRebalancerSpec struct { | ||
| // Workloads used to specify the list of expected resource. | ||
| // Nil or empty list is not allowed. | ||
| // +kubebuilder:validation:MinItems=1 | ||
| // +required | ||
| Workloads []Workload `json:"workloads"` | ||
| } | ||
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| // Workload the expected resource. | ||
| type Workload struct { | ||
| // APIVersion represents the API version of the target resource. | ||
| // +required | ||
| APIVersion string `json:"apiVersion"` | ||
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| // Kind represents the Kind of the target resource. | ||
| // +required | ||
| Kind string `json:"kind"` | ||
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| // Name of the target resource. | ||
| // +required | ||
| Name string `json:"name"` | ||
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| // Namespace of the target resource. | ||
| // Default is empty, which means it is a non-namespacescoped resource. | ||
| // +optional | ||
| Namespace string `json:"namespace,omitempty"` | ||
| } | ||
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| // WorkloadRebalancerStatus contains information about the current status of a WorkloadRebalancer | ||
| // updated periodically by schedule trigger controller. | ||
| type WorkloadRebalancerStatus struct { | ||
| // ObservedWorkloads contains information about the execution states and messages of target resources. | ||
| // +optional | ||
| ObservedWorkloads []ObservedWorkload `json:"observedWorkloads,omitempty"` | ||
| } | ||
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| // ObservedWorkload the observed resource. | ||
| type ObservedWorkload struct { | ||
| Workload `json:",inline"` | ||
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| // State the observed state of resource. | ||
| // +optional | ||
| State ObservedState `json:"state,omitempty"` | ||
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| // Reason represents a machine-readable description of why this workload failed. | ||
| Reason metav1.StatusReason `json:"reason,omitempty"` | ||
| } | ||
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| // ObservedState the specific extent to which the resource has been executed | ||
| type ObservedState string | ||
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| const ( | ||
| // Failed the resource has been triggered a rescheduling failed. | ||
| Failed ObservedState = "Failed" | ||
| // Success the resource has been triggered a scheduling success. | ||
| Success ObservedState = "Failed" | ||
| ) | ||
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| // +kubebuilder:resource:scope="Cluster" | ||
| // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object | ||
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| // WorkloadRebalancerList contains a list of WorkloadRebalancer | ||
| type WorkloadRebalancerList struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ListMeta `json:"metadata,omitempty"` | ||
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| // Items holds a list of WorkloadRebalancer. | ||
| Items []WorkloadRebalancer `json:"items"` | ||
| } |
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