mirror of https://github.com/k3s-io/k3s
97 lines
2.9 KiB
Go
97 lines
2.9 KiB
Go
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// +build !providerless
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/*
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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 vsphere
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import (
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"sync"
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"github.com/vmware/govmomi/object"
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"github.com/vmware/govmomi/vim25/types"
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k8stypes "k8s.io/apimachinery/pkg/types"
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)
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type volumePath string
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type nodeVolumeStatus struct {
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nodeName k8stypes.NodeName
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verified bool
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}
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// VsphereVolumeMap stores last known state of node and volume mapping
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type VsphereVolumeMap struct {
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volumeNodeMap map[volumePath]nodeVolumeStatus
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lock sync.RWMutex
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}
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func NewVsphereVolumeMap() *VsphereVolumeMap {
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return &VsphereVolumeMap{
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volumeNodeMap: map[volumePath]nodeVolumeStatus{},
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}
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}
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// StartDiskVerification marks all known volumes as unverified so as
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// disks which aren't verified can be removed at the end of verification process
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func (vsphereVolume *VsphereVolumeMap) StartDiskVerification() {
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vsphereVolume.lock.Lock()
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defer vsphereVolume.lock.Unlock()
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for k, v := range vsphereVolume.volumeNodeMap {
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v.verified = false
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vsphereVolume.volumeNodeMap[k] = v
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}
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}
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// CheckForVolume verifies if disk is attached to some node in the cluster.
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// This check is not definitive and should be followed up by separate verification.
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func (vsphereVolume *VsphereVolumeMap) CheckForVolume(path string) (k8stypes.NodeName, bool) {
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vsphereVolume.lock.RLock()
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defer vsphereVolume.lock.RUnlock()
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vPath := volumePath(path)
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ns, ok := vsphereVolume.volumeNodeMap[vPath]
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if ok {
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return ns.nodeName, true
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}
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return "", false
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}
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// Add all devices found on a node to the device map
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func (vsphereVolume *VsphereVolumeMap) Add(node k8stypes.NodeName, vmDevices object.VirtualDeviceList) {
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vsphereVolume.lock.Lock()
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defer vsphereVolume.lock.Unlock()
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for _, device := range vmDevices {
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if vmDevices.TypeName(device) == "VirtualDisk" {
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virtualDevice := device.GetVirtualDevice()
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if backing, ok := virtualDevice.Backing.(*types.VirtualDiskFlatVer2BackingInfo); ok {
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filename := volumePath(backing.FileName)
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vsphereVolume.volumeNodeMap[filename] = nodeVolumeStatus{node, true}
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}
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}
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}
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}
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// RemoveUnverified will remove any device which we could not verify to be attached to a node.
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func (vsphereVolume *VsphereVolumeMap) RemoveUnverified() {
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vsphereVolume.lock.Lock()
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defer vsphereVolume.lock.Unlock()
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for k, v := range vsphereVolume.volumeNodeMap {
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if !v.verified {
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delete(vsphereVolume.volumeNodeMap, k)
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}
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}
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}
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