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VMHandler.go
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VMHandler.go
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// Cloud Driver Interface of CB-Spider.
// The CB-Spider is a sub-Framework of the Cloud-Barista Multi-Cloud Project.
// The CB-Spider Mission is to connect all the clouds with a single interface.
//
// * Cloud-Barista: https://github.com/cloud-barista
//
// This is Mock Driver.
//
// by CB-Spider Team, 2020.10.
package resources
import (
"fmt"
"sync"
"time"
cblog "github.com/cloud-barista/cb-log"
idrv "github.com/cloud-barista/cb-spider/cloud-control-manager/cloud-driver/interfaces"
irs "github.com/cloud-barista/cb-spider/cloud-control-manager/cloud-driver/interfaces/resources"
)
var vmInfoMap map[string][]*irs.VMInfo
var vmStatusInfoMap map[string][]*irs.VMStatusInfo
type MockVMHandler struct {
Region idrv.RegionInfo
MockName string
}
func init() {
vmInfoMap = make(map[string][]*irs.VMInfo)
vmStatusInfoMap = make(map[string][]*irs.VMStatusInfo)
}
var vmMapLock = new(sync.RWMutex)
func (vmHandler *MockVMHandler) StartVM(vmReqInfo irs.VMReqInfo) (irs.VMInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called StartVM()!")
mockName := vmHandler.MockName
vmReqInfo.IId.SystemId = vmReqInfo.IId.NameId
validatedImageIID := irs.IID{}
// public image validation
if vmReqInfo.ImageType == irs.PublicImage {
imageHandler := MockImageHandler{mockName}
validatedImgInfo, err := imageHandler.GetImage(vmReqInfo.ImageIID)
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
validatedImageIID = validatedImgInfo.IId
}
// MyImage validation
if vmReqInfo.ImageType == irs.MyImage {
myImageHandler := MockMyImageHandler{mockName}
validatedMyImgInfo, err := myImageHandler.GetMyImage(vmReqInfo.ImageIID)
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
validatedImageIID = validatedMyImgInfo.IId
}
// spec validation
vmSpecHandler := MockVMSpecHandler{mockName}
validatedSpecInfo, err := vmSpecHandler.GetVMSpec(vmReqInfo.VMSpecName)
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
// vpc validation
vpcHandler := MockVPCHandler{mockName}
validatedVPCInfo, err := vpcHandler.GetVPC(vmReqInfo.VpcIID)
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
// subnet validation
var validatedSubnetInfo *irs.SubnetInfo = nil
for _, info := range validatedVPCInfo.SubnetInfoList {
if info.IId.NameId == vmReqInfo.SubnetIID.NameId {
validatedSubnetInfo = &info
break
}
}
if validatedSubnetInfo == nil {
errMSG := vmReqInfo.SubnetIID.NameId + " subnet iid does not exist!!"
cblogger.Error(errMSG)
return irs.VMInfo{}, fmt.Errorf(errMSG)
}
// sg validation
securityHandler := MockSecurityHandler{mockName}
sgInfoList, err := securityHandler.ListSecurity()
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
validatedSgIIDs := []irs.IID{}
for _, info1 := range vmReqInfo.SecurityGroupIIDs {
flg := false
for _, info2 := range sgInfoList {
if (*info2).IId.NameId == info1.NameId {
validatedSgIIDs = append(validatedSgIIDs, info2.IId)
flg = true
break
}
}
if !flg {
errMSG := info1.NameId + " security group iid does not exist!!"
cblogger.Error(errMSG)
return irs.VMInfo{}, fmt.Errorf(errMSG)
}
}
// data disk validation
diskHandler := MockDiskHandler{mockName}
diskInfoList, err := diskHandler.ListDisk()
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
validatedDiskIIDs := []irs.IID{}
for _, info1 := range vmReqInfo.DataDiskIIDs {
flg := false
for _, info2 := range diskInfoList {
if (*info2).IId.NameId == info1.NameId {
validatedDiskIIDs = append(validatedDiskIIDs, info2.IId)
flg = true
}
}
if !flg {
errMSG := info1.NameId + " Data Disk iid does not exist!!"
cblogger.Error(errMSG)
return irs.VMInfo{}, fmt.Errorf(errMSG)
}
}
// keypair validation
keyPairHandler := MockKeyPairHandler{mockName}
validatedKeyPairInfo, err := keyPairHandler.GetKey(vmReqInfo.KeyPairIID)
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
// vm creation
vmInfo := irs.VMInfo{
IId: vmReqInfo.IId,
StartTime: time.Now(),
Region: irs.RegionInfo{vmHandler.Region.Region, vmHandler.Region.Zone},
ImageIId: validatedImageIID,
VMSpecName: validatedSpecInfo.Name,
VpcIID: validatedVPCInfo.IId,
SubnetIID: validatedSubnetInfo.IId,
SecurityGroupIIds: validatedSgIIDs,
KeyPairIId: validatedKeyPairInfo.IId,
VMUserId: vmReqInfo.VMUserId,
VMUserPasswd: vmReqInfo.VMUserPasswd,
NetworkInterface: "mockni0",
PublicIP: "4.3.2.1",
PublicDNS: vmReqInfo.IId.NameId + ".spider.barista.com",
PrivateIP: "1.2.3.4",
PrivateDNS: vmReqInfo.IId.NameId + ".spider.barista.com",
VMBootDisk: "/dev/sda1",
VMBlockDisk: "/dev/sda1",
RootDiskType: "SSD",
RootDiskSize: "32",
RootDeviceName: "/dev/sda1",
DataDiskIIDs: validatedDiskIIDs,
KeyValueList: nil,
}
// attach disks
for _, diskIID := range validatedDiskIIDs {
_, err := justAttachDisk(mockName, diskIID, vmReqInfo.IId)
if err != nil {
cblogger.Error(err)
return irs.VMInfo{}, err
}
}
vmMapLock.Lock()
defer vmMapLock.Unlock()
infoList, _ := vmInfoMap[mockName]
infoList = append(infoList, &vmInfo)
vmInfoMap[mockName] = infoList
// vm status creation
vmStatusInfo := irs.VMStatusInfo{vmReqInfo.IId, irs.Running}
statusInfoList, _ := vmStatusInfoMap[mockName]
statusInfoList = append(statusInfoList, &vmStatusInfo)
vmStatusInfoMap[mockName] = statusInfoList
return vmInfo, nil
}
func (vmHandler *MockVMHandler) SuspendVM(iid irs.IID) (irs.VMStatus, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called SuspendVM()!")
mockName := vmHandler.MockName
vmMapLock.Lock()
defer vmMapLock.Unlock()
statusInfoList, ok := vmStatusInfoMap[mockName]
if !ok {
errMSG := mockName + " vm status does not exist!!"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
var validatedStatusInfo *irs.VMStatusInfo = nil
for _, info := range statusInfoList {
if (*info).IId.NameId == iid.NameId {
validatedStatusInfo = info
}
}
if validatedStatusInfo == nil {
errMSG := iid.NameId + " status iid does not exist!!"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
validatedStatusInfo.VmStatus = irs.Suspended
return irs.Suspending, nil
}
func (vmHandler *MockVMHandler) ResumeVM(iid irs.IID) (irs.VMStatus, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called ResumeVM()!")
mockName := vmHandler.MockName
vmMapLock.Lock()
defer vmMapLock.Unlock()
statusInfoList, ok := vmStatusInfoMap[mockName]
if !ok {
errMSG := mockName + " vm status does not exist!!"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
var validatedStatusInfo *irs.VMStatusInfo = nil
for _, info := range statusInfoList {
if (*info).IId.NameId == iid.NameId {
validatedStatusInfo = info
}
}
if validatedStatusInfo == nil {
errMSG := iid.NameId + " vm status iid does not exist!!"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
validatedStatusInfo.VmStatus = irs.Running
return irs.Resuming, nil
}
func (vmHandler *MockVMHandler) RebootVM(iid irs.IID) (irs.VMStatus, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called RebootVM()!")
mockName := vmHandler.MockName
vmMapLock.Lock()
defer vmMapLock.Unlock()
statusInfoList, ok := vmStatusInfoMap[mockName]
if !ok {
errMSG := mockName + " vm status does not exist!!"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
var validatedStatusInfo *irs.VMStatusInfo = nil
for _, info := range statusInfoList {
if (*info).IId.NameId == iid.NameId {
validatedStatusInfo = info
}
}
if validatedStatusInfo == nil {
errMSG := iid.NameId + " vm status iid does not exist!!"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
if validatedStatusInfo.VmStatus == irs.Suspended {
errMSG := "reboot not supported in SUSPENDED status"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
validatedStatusInfo.VmStatus = irs.Running
return irs.Rebooting, nil
}
func (vmHandler *MockVMHandler) TerminateVM(iid irs.IID) (irs.VMStatus, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called TerminateVM()!")
mockName := vmHandler.MockName
vmMapLock.Lock()
defer vmMapLock.Unlock()
infoList, ok := vmInfoMap[mockName]
if !ok {
errMSG := iid.NameId + " vm iid does not exist!!"
return "", fmt.Errorf(errMSG)
}
statusInfoList, ok := vmStatusInfoMap[mockName]
if !ok {
errMSG := iid.NameId + " vm iid does not exist!!"
return "", fmt.Errorf(errMSG)
}
for idx, info := range infoList {
if info.IId.SystemId == iid.SystemId {
for _, diskIID := range info.DataDiskIIDs {
justDetachDisk(mockName, diskIID, info.IId)
}
infoList = append(infoList[:idx], infoList[idx+1:]...)
}
}
vmInfoMap[mockName] = infoList
for idx, info := range statusInfoList {
if info.IId.SystemId == iid.SystemId {
statusInfoList = append(statusInfoList[:idx], statusInfoList[idx+1:]...)
}
}
vmStatusInfoMap[mockName] = statusInfoList
return irs.Terminating, nil
}
func (vmHandler *MockVMHandler) ListVMStatus() ([]*irs.VMStatusInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called ListVMStatus()!")
mockName := vmHandler.MockName
vmMapLock.RLock()
defer vmMapLock.RUnlock()
infoList, ok := vmStatusInfoMap[mockName]
if !ok {
return []*irs.VMStatusInfo{}, nil
}
// cloning list of VM Status
return CloneVMStatusInfoList(infoList), nil
}
func CloneVMStatusInfoList(srcInfoList []*irs.VMStatusInfo) []*irs.VMStatusInfo {
clonedInfoList := []*irs.VMStatusInfo{}
for _, srcInfo := range srcInfoList {
clonedInfo := CloneVMStatusInfo(*srcInfo)
clonedInfoList = append(clonedInfoList, &clonedInfo)
}
return clonedInfoList
}
func CloneVMStatusInfo(srcInfo irs.VMStatusInfo) irs.VMStatusInfo {
/*
type VMStatusInfo struct {
IId IID // {NameId, SystemId}
VmStatus VMStatus
}
*/
// clone VMStatusInfo
clonedInfo := irs.VMStatusInfo{
IId: irs.IID{srcInfo.IId.NameId, srcInfo.IId.SystemId},
VmStatus: srcInfo.VmStatus,
}
return clonedInfo
}
func (vmHandler *MockVMHandler) GetVMStatus(iid irs.IID) (irs.VMStatus, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called GetVMStatus()!")
mockName := vmHandler.MockName
vmMapLock.RLock()
defer vmMapLock.RUnlock()
infoList, ok := vmStatusInfoMap[mockName]
if !ok {
errMSG := iid.NameId + " vm iid does not exist!!"
return "", fmt.Errorf(errMSG)
}
for _, info := range infoList {
if (*info).IId.NameId == iid.NameId {
return (*info).VmStatus, nil
}
}
errMSG := iid.NameId + " status iid does not exist!!"
cblogger.Error(errMSG)
return "", fmt.Errorf(errMSG)
}
func (vmHandler *MockVMHandler) ListVM() ([]*irs.VMInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called ListVM()!")
mockName := vmHandler.MockName
vmMapLock.RLock()
defer vmMapLock.RUnlock()
infoList, ok := vmInfoMap[mockName]
if !ok {
return []*irs.VMInfo{}, nil
}
// cloning list of VM
return CloneVMInfoList(infoList), nil
}
func CloneVMInfoList(srcInfoList []*irs.VMInfo) []*irs.VMInfo {
clonedInfoList := []*irs.VMInfo{}
for _, srcInfo := range srcInfoList {
clonedInfo := CloneVMInfo(*srcInfo)
clonedInfoList = append(clonedInfoList, &clonedInfo)
}
return clonedInfoList
}
func CloneVMInfo(srcInfo irs.VMInfo) irs.VMInfo {
/*
type VMInfo struct {
IId IID // {NameId, SystemId}
StartTime time.Time // Timezone: based on cloud-barista server location.
Region RegionInfo // ex) {us-east1, us-east1-c} or {ap-northeast-2}
ImageType ImageType // PublicImage | MyImage
ImageIId IID
VMSpecName string // instance type or flavour, etc... ex) t2.micro or f1.micro
VpcIID IID
SubnetIID IID // AWS, ex) subnet-8c4a53e4
SecurityGroupIIds []IID // AWS, ex) sg-0b7452563e1121bb6
KeyPairIId IID
RootDiskType string // "SSD(gp2)", "Premium SSD", ...
RootDiskSize string // "default", "50", "1000" (GB)
RootDeviceName string // "/dev/sda1", ...
DataDiskIIDs []IID
VMBootDisk string // Deprecated soon
VMBlockDisk string // Deprecated soon
VMUserId string // ex) user1
VMUserPasswd string
NetworkInterface string // ex) eth0
PublicIP string
PublicDNS string
PrivateIP string
PrivateDNS string
SSHAccessPoint string // ex) 10.2.3.2:22, 123.456.789.123:4321
KeyValueList []KeyValue
}
*/
// clone VMInfo
clonedInfo := irs.VMInfo{
IId: irs.IID{srcInfo.IId.NameId, srcInfo.IId.SystemId},
StartTime: srcInfo.StartTime,
Region: srcInfo.Region,
ImageType: srcInfo.ImageType,
ImageIId: srcInfo.ImageIId,
VMSpecName: srcInfo.VMSpecName,
VpcIID: irs.IID{srcInfo.VpcIID.NameId, srcInfo.VpcIID.SystemId},
SubnetIID: irs.IID{srcInfo.SubnetIID.NameId, srcInfo.SubnetIID.SystemId},
SecurityGroupIIds: cloneIIDArray(srcInfo.SecurityGroupIIds),
KeyPairIId: irs.IID{srcInfo.KeyPairIId.NameId, srcInfo.KeyPairIId.SystemId},
RootDiskType: srcInfo.RootDiskType,
RootDiskSize: srcInfo.RootDiskSize,
RootDeviceName: srcInfo.RootDeviceName,
DataDiskIIDs: cloneIIDArray(srcInfo.DataDiskIIDs),
VMBootDisk: srcInfo.VMBootDisk,
VMBlockDisk: srcInfo.VMBlockDisk,
VMUserId: srcInfo.VMUserId,
VMUserPasswd: srcInfo.VMUserPasswd,
NetworkInterface: srcInfo.NetworkInterface,
PublicIP: srcInfo.PublicIP,
PublicDNS: srcInfo.PublicDNS,
PrivateIP: srcInfo.PrivateIP,
PrivateDNS: srcInfo.PrivateDNS,
SSHAccessPoint: srcInfo.SSHAccessPoint,
KeyValueList: srcInfo.KeyValueList, // now, do not need cloning
}
return clonedInfo
}
func cloneIIDArray(srcIIDArray []irs.IID) []irs.IID {
clonedIIDs := []irs.IID{}
for _, iid := range srcIIDArray {
clonedIIDs = append(clonedIIDs, irs.IID{iid.NameId, iid.SystemId})
}
return clonedIIDs
}
func (vmHandler *MockVMHandler) GetVM(iid irs.IID) (irs.VMInfo, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called GetVM()!")
mockName := vmHandler.MockName
vmMapLock.RLock()
defer vmMapLock.RUnlock()
infoList, ok := vmInfoMap[mockName]
if !ok {
errMSG := iid.NameId + " vm iid does not exist!!"
cblogger.Error(errMSG)
return irs.VMInfo{}, fmt.Errorf(errMSG)
}
for _, info := range infoList {
if (*info).IId.NameId == iid.NameId {
return CloneVMInfo(*info), nil
}
}
errMSG := iid.NameId + " vm iid does not exist!!"
cblogger.Error(errMSG)
return irs.VMInfo{}, fmt.Errorf(errMSG)
}
func diskAttach(mockName string, iid irs.IID, diskIID irs.IID) (bool, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called diskAttach()!")
vmMapLock.RLock()
defer vmMapLock.RUnlock()
infoList, ok := vmInfoMap[mockName]
if !ok {
errMSG := iid.NameId + " vm iid does not exist!!"
cblogger.Error(errMSG)
return false, fmt.Errorf(errMSG)
}
for _, info := range infoList {
if (*info).IId.SystemId == iid.SystemId {
info.DataDiskIIDs = append(info.DataDiskIIDs, diskIID)
return true, nil
}
}
errMSG := iid.NameId + " vm iid does not exist!!"
cblogger.Error(errMSG)
return false, fmt.Errorf(errMSG)
}
func diskDetach(mockName string, iid irs.IID, diskIID irs.IID) (bool, error) {
cblogger := cblog.GetLogger("CB-SPIDER")
cblogger.Info("Mock Driver: called diskDetach()!")
vmMapLock.RLock()
defer vmMapLock.RUnlock()
infoList, ok := vmInfoMap[mockName]
if !ok {
errMSG := iid.NameId + " vm iid does not exist!!"
cblogger.Error(errMSG)
return false, fmt.Errorf(errMSG)
}
for _, info := range infoList {
if (*info).IId.NameId == iid.NameId {
for idx, oneIID := range info.DataDiskIIDs {
if oneIID.SystemId == diskIID.SystemId {
info.DataDiskIIDs = append(info.DataDiskIIDs[:idx], info.DataDiskIIDs[idx+1:]...)
return true, nil
}
}
}
}
errMSG := iid.NameId + " vm iid does not exist!!"
cblogger.Error(errMSG)
return false, fmt.Errorf(errMSG)
}