80 lines
2.3 KiB
Go
80 lines
2.3 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package clusterapi
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import (
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"context"
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"fmt"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// scalableResource is a resource that can be scaled up and down by
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// adjusting its replica count field.
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type scalableResource interface {
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// Id returns an unique identifier of the resource
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ID() string
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// MaxSize returns maximum size of the resource
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MaxSize() int
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// MinSize returns minimum size of the resource
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MinSize() int
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// Name returns the name of the resource
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Name() string
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// Namespace returns the namespace the resource is in
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Namespace() string
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// Nodes returns a list of all machines that already have or should become nodes that belong to this
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// resource
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Nodes() ([]string, error)
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// SetSize() sets the replica count of the resource
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SetSize(nreplicas int32) error
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// Replicas returns the current replica count of the resource
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Replicas() (int32, error)
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// MarkMachineForDeletion marks machine for deletion
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MarkMachineForDeletion(machine *Machine) error
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// UnmarkMachineForDeletion unmarks machine for deletion
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UnmarkMachineForDeletion(machine *Machine) error
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}
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func unmarkMachineForDeletion(controller *machineController, machine *Machine) error {
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u, err := controller.dynamicclient.Resource(*controller.machineResource).Namespace(machine.Namespace).Get(context.TODO(), machine.Name, metav1.GetOptions{})
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if err != nil {
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return err
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}
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if u == nil {
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return fmt.Errorf("unknown machine %s", machine.Name)
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}
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annotations := u.GetAnnotations()
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if _, ok := annotations[machineDeleteAnnotationKey]; ok {
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delete(annotations, machineDeleteAnnotationKey)
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u.SetAnnotations(annotations)
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_, updateErr := controller.dynamicclient.Resource(*controller.machineResource).Namespace(u.GetNamespace()).Update(context.TODO(), u, metav1.UpdateOptions{})
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return updateErr
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}
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return nil
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}
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