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1. Core Kubelet changes to implement In-place Pod Vertical Scaling. 2. E2E tests for In-place Pod Vertical Scaling. 3. Refactor kubelet code and add missing tests (Derek's kubelet review) 4. Add a new hash over container fields without Resources field to allow feature gate toggling without restarting containers not using the feature. 5. Fix corner-case where resize A->B->A gets ignored 6. Add cgroup v2 support to pod resize E2E test. KEP: /enhancements/keps/sig-node/1287-in-place-update-pod-resources Co-authored-by: Chen Wang <Chen.Wang1@ibm.com>
63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
/*
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Copyright 2021 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 state
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import (
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"k8s.io/api/core/v1"
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)
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// PodResourceAllocation type is used in tracking resources allocated to pod's containers
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type PodResourceAllocation map[string]map[string]v1.ResourceList
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// PodResizeStatus type is used in tracking the last resize decision for pod
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type PodResizeStatus map[string]v1.PodResizeStatus
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// Clone returns a copy of PodResourceAllocation
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func (pr PodResourceAllocation) Clone() PodResourceAllocation {
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prCopy := make(PodResourceAllocation)
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for pod := range pr {
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prCopy[pod] = make(map[string]v1.ResourceList)
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for container, alloc := range pr[pod] {
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prCopy[pod][container] = alloc.DeepCopy()
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}
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}
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return prCopy
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}
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// Reader interface used to read current pod resource allocation state
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type Reader interface {
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GetContainerResourceAllocation(podUID string, containerName string) (v1.ResourceList, bool)
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GetPodResourceAllocation() PodResourceAllocation
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GetPodResizeStatus(podUID string) (v1.PodResizeStatus, bool)
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GetResizeStatus() PodResizeStatus
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}
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type writer interface {
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SetContainerResourceAllocation(podUID string, containerName string, alloc v1.ResourceList) error
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SetPodResourceAllocation(PodResourceAllocation) error
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SetPodResizeStatus(podUID string, resizeStatus v1.PodResizeStatus) error
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SetResizeStatus(PodResizeStatus) error
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Delete(podUID string, containerName string) error
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ClearState() error
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}
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// State interface provides methods for tracking and setting pod resource allocation
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type State interface {
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Reader
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writer
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}
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