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+/*
+Copyright 2016 The Kubernetes 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.
+*/
+
+package policy
+
+import (
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/util/intstr"
+)
+
+// PodDisruptionBudgetSpec is a description of a PodDisruptionBudget.
+type PodDisruptionBudgetSpec struct {
+ // An eviction is allowed if at least "minAvailable" pods selected by
+ // "selector" will still be available after the eviction, i.e. even in the
+ // absence of the evicted pod. So for example you can prevent all voluntary
+ // evictions by specifying "100%".
+ // +optional
+ MinAvailable *intstr.IntOrString
+
+ // Label query over pods whose evictions are managed by the disruption
+ // budget.
+ // +optional
+ Selector *metav1.LabelSelector
+
+ // An eviction is allowed if at most "maxUnavailable" pods selected by
+ // "selector" are unavailable after the eviction, i.e. even in absence of
+ // the evicted pod. For example, one can prevent all voluntary evictions
+ // by specifying 0. This is a mutually exclusive setting with "minAvailable".
+ // +optional
+ MaxUnavailable *intstr.IntOrString
+}
+
+// PodDisruptionBudgetStatus represents information about the status of a
+// PodDisruptionBudget. Status may trail the actual state of a system.
+type PodDisruptionBudgetStatus struct {
+ // Most recent generation observed when updating this PDB status. PodDisruptionsAllowed and other
+ // status informatio is valid only if observedGeneration equals to PDB's object generation.
+ // +optional
+ ObservedGeneration int64
+
+ // DisruptedPods contains information about pods whose eviction was
+ // processed by the API server eviction subresource handler but has not
+ // yet been observed by the PodDisruptionBudget controller.
+ // A pod will be in this map from the time when the API server processed the
+ // eviction request to the time when the pod is seen by PDB controller
+ // as having been marked for deletion (or after a timeout). The key in the map is the name of the pod
+ // and the value is the time when the API server processed the eviction request. If
+ // the deletion didn't occur and a pod is still there it will be removed from
+ // the list automatically by PodDisruptionBudget controller after some time.
+ // If everything goes smooth this map should be empty for the most of the time.
+ // Large number of entries in the map may indicate problems with pod deletions.
+ DisruptedPods map[string]metav1.Time
+
+ // Number of pod disruptions that are currently allowed.
+ PodDisruptionsAllowed int32
+
+ // current number of healthy pods
+ CurrentHealthy int32
+
+ // minimum desired number of healthy pods
+ DesiredHealthy int32
+
+ // total number of pods counted by this disruption budget
+ ExpectedPods int32
+}
+
+// +genclient=true
+
+// PodDisruptionBudget is an object to define the max disruption that can be caused to a collection of pods
+type PodDisruptionBudget struct {
+ metav1.TypeMeta
+ // +optional
+ metav1.ObjectMeta
+
+ // Specification of the desired behavior of the PodDisruptionBudget.
+ // +optional
+ Spec PodDisruptionBudgetSpec
+ // Most recently observed status of the PodDisruptionBudget.
+ // +optional
+ Status PodDisruptionBudgetStatus
+}
+
+// PodDisruptionBudgetList is a collection of PodDisruptionBudgets.
+type PodDisruptionBudgetList struct {
+ metav1.TypeMeta
+ // +optional
+ metav1.ListMeta
+ Items []PodDisruptionBudget
+}
+
+// +genclient=true
+// +noMethods=true
+
+// Eviction evicts a pod from its node subject to certain policies and safety constraints.
+// This is a subresource of Pod. A request to cause such an eviction is
+// created by POSTing to .../pods/<pod name>/eviction.
+type Eviction struct {
+ metav1.TypeMeta
+
+ // ObjectMeta describes the pod that is being evicted.
+ // +optional
+ metav1.ObjectMeta
+
+ // DeleteOptions may be provided
+ // +optional
+ DeleteOptions *metav1.DeleteOptions
+}