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NLBHandler.go
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NLBHandler.go
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package resources
import (
"errors"
"fmt"
"strconv"
"strings"
"time"
call "github.com/cloud-barista/cb-spider/cloud-control-manager/cloud-driver/call-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"
//"github.com/davecgh/go-spew/spew"
clb "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/clb/v20180317"
"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common"
tencentvpc "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/vpc/v20170312"
)
type TencentNLBHandler struct {
Region idrv.RegionInfo
Client *clb.Client
VpcClient *tencentvpc.Client
}
const (
//
LoadBalancerSet_Status_Creating uint64 = 0
LoadBalancerSet_Status_Running uint64 = 1
Tencent_LoadBalancerType_Open string = "OPEN" // to Spider "PUBLIC
Tencent_LoadBalancerType_INTERNAL string = "INTERNAL"
Spider_LoadBalancerType_PUBLIC string = "PUBLIC" // to Tencent "OPEN"
Spider_LoadBalancerType_INTERNAL string = "INTERNAL"
// Request Status : Succeeded, Failed, Progress
Request_Status_Succeeded int64 = 0
Request_Status_Failed int64 = 1
Request_Status_Progress int64 = 2
// Request Status : Running, Done
Request_Status_Running string = "Running"
Request_Status_Done string = "Done"
Protocol_TCP string = "TCP"
Protocol_UDP string = "UDP"
)
/*
NLB 생성
vpc required
*/
func (NLBHandler *TencentNLBHandler) CreateNLB(nlbReqInfo irs.NLBInfo) (irs.NLBInfo, error) {
////// validation check area //////
// NLB 이름 중복 체크
existName, errExist := NLBHandler.nlbExist(nlbReqInfo.IId.NameId)
if errExist != nil {
cblogger.Error(errExist)
return irs.NLBInfo{}, errExist
}
if existName {
return irs.NLBInfo{}, errors.New("A NLB with the name " + nlbReqInfo.IId.NameId + " already exists.")
}
healthCheckerProtocol := nlbReqInfo.HealthChecker.Protocol
healthCheckerTimeOut := int64(nlbReqInfo.HealthChecker.Timeout)
healthCheckerInterval := int64(nlbReqInfo.HealthChecker.Interval)
healthCheckerThreshold := int64(nlbReqInfo.HealthChecker.Threshold)
if healthCheckerTimeOut > 0 && healthCheckerInterval > 0 && healthCheckerTimeOut > healthCheckerInterval {
return irs.NLBInfo{}, errors.New("HealthCheck.IntervalTime should not be less than HealthCheck.TimeOut")
}
listenerProtocol := nlbReqInfo.Listener.Protocol
listenerPort, portErr := strconv.ParseInt(nlbReqInfo.Listener.Port, 10, 64)
if portErr != nil {
return irs.NLBInfo{}, portErr
}
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: nlbReqInfo.IId.NameId,
CloudOSAPI: "CreateLoadBalancer()",
ElapsedTime: "",
ErrorMSG: "",
}
nlbResult := irs.NLBInfo{}
// NLB request생성
nlbRequest := clb.NewCreateLoadBalancerRequest()
nlbRequest.LoadBalancerName = common.StringPtr(nlbReqInfo.IId.NameId)
if strings.EqualFold(nlbReqInfo.Type, "") || strings.EqualFold(nlbReqInfo.Type, Spider_LoadBalancerType_PUBLIC) {
nlbRequest.LoadBalancerType = common.StringPtr(Tencent_LoadBalancerType_Open)
} else {
nlbRequest.LoadBalancerType = common.StringPtr(Tencent_LoadBalancerType_INTERNAL)
}
nlbRequest.VpcId = common.StringPtr(nlbReqInfo.VpcIID.SystemId)
nlbResponse, nlbErr := NLBHandler.Client.CreateLoadBalancer(nlbRequest)
if nlbErr != nil {
return irs.NLBInfo{}, nlbErr
}
cblogger.Debug(nlbResponse.ToJsonString())
newNLBId := *nlbResponse.Response.LoadBalancerIds[0]
cblogger.Debug(newNLBId)
// nlb가 running 상태가 되길 기다림
curStatus, statusErr := NLBHandler.WaitForRun(irs.IID{SystemId: newNLBId})
if statusErr != nil {
return irs.NLBInfo{}, statusErr
}
// Listener 생성( listener + healthchecker)
if curStatus == Request_Status_Running {
listenerRequest := clb.NewCreateListenerRequest()
listenerRequest.HealthCheck = &clb.HealthCheck{}
listenerRequest.LoadBalancerId = common.StringPtr(newNLBId)
listenerRequest.Ports = common.Int64Ptrs([]int64{listenerPort})
listenerRequest.Protocol = common.StringPtr(listenerProtocol)
listenerRequest.ListenerNames = common.StringPtrs([]string{nlbReqInfo.IId.NameId})
// health Checker port 값이 있을 때만 setting
if !strings.EqualFold(nlbReqInfo.HealthChecker.Port, "") {
healthPort, healthErr := strconv.ParseInt(nlbReqInfo.HealthChecker.Port, 10, 64)
if healthErr != nil {
return irs.NLBInfo{}, healthErr
}
listenerRequest.HealthCheck.CheckPort = common.Int64Ptr(healthPort)
}
if healthCheckerTimeOut > 0 {
listenerRequest.HealthCheck.TimeOut = common.Int64Ptr(healthCheckerTimeOut)
}
if healthCheckerInterval > 0 {
listenerRequest.HealthCheck.IntervalTime = common.Int64Ptr(healthCheckerInterval)
}
if healthCheckerThreshold > 0 {
listenerRequest.HealthCheck.HealthNum = common.Int64Ptr(healthCheckerThreshold)
}
if !strings.EqualFold(nlbReqInfo.HealthChecker.Protocol, "") {
listenerRequest.HealthCheck.CheckType = common.StringPtr(nlbReqInfo.HealthChecker.Protocol)
}
// Listener의 protocol이 UDP일 때 HealthChecker의 CheckType, ContextType은 고정
if strings.EqualFold(listenerProtocol, "UDP") {
listenerRequest.HealthCheck.CheckType = common.StringPtr("CUSTOM")
listenerRequest.HealthCheck.ContextType = common.StringPtr("TEXT")
}
// HealthChecker protocol이 HTTP일 때 Domain Set
if strings.EqualFold(healthCheckerProtocol, "HTTP") {
listenerRequest.HealthCheck.HttpCheckDomain = common.StringPtr("")
}
listenerResponse, listenerErr := NLBHandler.Client.CreateListener(listenerRequest)
if listenerErr != nil {
cblogger.Errorf("NLB CreateListner err: %s", listenerErr.Error())
cblogger.Errorf("delete abnormal nlb")
_, err := NLBHandler.DeleteNLB(irs.IID{SystemId: newNLBId})
if err != nil {
return irs.NLBInfo{}, err
}
return irs.NLBInfo{}, listenerErr
}
fmt.Printf("%s", listenerResponse.ToJsonString())
newListenerId := *listenerResponse.Response.ListenerIds[0]
backendPort, backendErr := strconv.ParseInt(nlbReqInfo.VMGroup.Port, 10, 64)
if backendErr != nil {
return irs.NLBInfo{}, backendErr
}
// Listener가 생성되길 기다림
listStatus, listStatErr := NLBHandler.WaitForDone(*listenerResponse.Response.RequestId)
if listStatErr != nil {
return irs.NLBInfo{}, listStatErr
}
// VM 연결
if listStatus == Request_Status_Done {
targetRequest := clb.NewRegisterTargetsRequest()
targetRequest.LoadBalancerId = common.StringPtr(newNLBId)
targetRequest.ListenerId = common.StringPtr(newListenerId)
targetRequest.Targets = []*clb.Target{}
for _, target := range *nlbReqInfo.VMGroup.VMs {
targetRequest.Targets = append(targetRequest.Targets, &clb.Target{
InstanceId: common.StringPtr(target.SystemId),
Port: common.Int64Ptr(backendPort),
})
}
cblogger.Debug(targetRequest.ToJsonString())
targetResponse, targetErr := NLBHandler.Client.RegisterTargets(targetRequest)
if targetErr != nil {
cblogger.Errorf("NLB RegisterTargets err: %s", listenerErr.Error())
cblogger.Errorf("delete abnormal nlb")
_, err := NLBHandler.DeleteNLB(irs.IID{SystemId: newNLBId})
if err != nil {
return irs.NLBInfo{}, err
}
return irs.NLBInfo{}, targetErr
}
fmt.Printf("%s", targetResponse.ToJsonString())
// VM 연결되길 기다림
targetStatus, targetStatErr := NLBHandler.WaitForDone(*targetResponse.Response.RequestId)
if targetStatErr != nil {
return irs.NLBInfo{}, targetStatErr
}
if targetStatus == Request_Status_Done {
nlbInfo, nlbInfoErr := NLBHandler.GetNLB(irs.IID{SystemId: newNLBId})
if nlbInfoErr != nil {
return irs.NLBInfo{}, nlbInfoErr
}
nlbResult = nlbInfo
}
}
}
callogger.Info(call.String(callLogInfo))
fmt.Printf("%s", nlbResponse.ToJsonString())
return nlbResult, nil
}
/*
NLB 모든 목록 조회 : TCP/UDP
*/
func (NLBHandler *TencentNLBHandler) ListNLB() ([]*irs.NLBInfo, error) {
cblogger.Info("Start")
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "ListNLB",
CloudOSAPI: "DescribeLoadBalancers()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDescribeLoadBalancersRequest()
callLogStart := call.Start()
response, err := NLBHandler.Client.DescribeLoadBalancers(request)
callLogInfo.ElapsedTime = call.Elapsed(callLogStart)
cblogger.Debug(response.ToJsonString())
if err != nil {
callLogInfo.ErrorMSG = err.Error()
callogger.Error(call.String(callLogInfo))
cblogger.Error(err)
return nil, err
}
callogger.Info(call.String(callLogInfo))
cblogger.Info("NLB 개수 : ", *response.Response.TotalCount)
var nlbInfoList []*irs.NLBInfo
if *response.Response.TotalCount > 0 {
for _, curNLB := range response.Response.LoadBalancerSet {
cblogger.Debugf("[%s] NLB 정보 조회 - [%s]", *curNLB.LoadBalancerId, *curNLB.LoadBalancerName)
nlbInfo, nlbErr := NLBHandler.GetNLB(irs.IID{SystemId: *curNLB.LoadBalancerId})
if nlbErr != nil {
cblogger.Error(nlbErr)
return nil, nlbErr
}
nlbInfoList = append(nlbInfoList, &nlbInfo)
}
}
cblogger.Debugf("리턴 결과 목록 수 : [%d]", len(nlbInfoList))
return nlbInfoList, nil
}
/*
NLB 조회
*/
func (NLBHandler *TencentNLBHandler) GetNLB(nlbIID irs.IID) (irs.NLBInfo, error) {
cblogger.Info("NLB IID : ", nlbIID.SystemId)
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "GetNLB",
CloudOSAPI: "DescribeLoadBalancers()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDescribeLoadBalancersRequest()
request.LoadBalancerIds = common.StringPtrs([]string{nlbIID.SystemId})
callLogStart := call.Start()
response, err := NLBHandler.Client.DescribeLoadBalancers(request)
callLogInfo.ElapsedTime = call.Elapsed(callLogStart)
if err != nil {
cblogger.Errorf("An API error has returned: %s", err.Error())
callLogInfo.ErrorMSG = err.Error()
callogger.Error(call.String(callLogInfo))
return irs.NLBInfo{}, err
}
callogger.Info(call.String(callLogInfo))
cblogger.Debug("NLB 개수 : ", *response.Response.TotalCount)
if *response.Response.TotalCount < 1 {
return irs.NLBInfo{}, errors.New("Notfound: '" + nlbIID.SystemId + "' NLB Not found")
}
nlbInfo, nlbErr := NLBHandler.ExtractNLBDescribeInfo(response.Response.LoadBalancerSet[0])
if nlbErr != nil {
return irs.NLBInfo{}, nlbErr
}
listener, listenerErr := NLBHandler.ExtractListenerInfo(nlbIID)
if listenerErr != nil {
return irs.NLBInfo{}, listenerErr
}
healthChecker, healthCheckerErr := NLBHandler.ExtractHealthCheckerInfo(nlbIID)
if healthCheckerErr != nil {
return irs.NLBInfo{}, healthCheckerErr
}
vmGroup, vmGroupErr := NLBHandler.ExtractVMGroupInfo(nlbIID)
if vmGroupErr != nil {
return irs.NLBInfo{}, vmGroupErr
}
nlbInfo.Listener = listener
nlbInfo.HealthChecker = healthChecker
nlbInfo.VMGroup = vmGroup
cblogger.Debug(nlbInfo)
return nlbInfo, nil
}
func (NLBHandler *TencentNLBHandler) DeleteNLB(nlbIID irs.IID) (bool, error) {
cblogger.Info("NLB IID : ", nlbIID.SystemId)
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "DeleteNLB",
CloudOSAPI: "DeleteLoadBalancer()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDeleteLoadBalancerRequest()
request.LoadBalancerIds = common.StringPtrs([]string{nlbIID.SystemId})
callLogStart := call.Start()
_, err := NLBHandler.Client.DeleteLoadBalancer(request)
callLogInfo.ElapsedTime = call.Elapsed(callLogStart)
if err != nil {
cblogger.Errorf("An API error has returned: %s", err.Error())
callLogInfo.ErrorMSG = err.Error()
callogger.Error(call.String(callLogInfo))
return false, err
}
callogger.Info(call.String(callLogInfo))
return true, nil
}
func (NLBHandler *TencentNLBHandler) ChangeListener(nlbIID irs.IID, listener irs.ListenerInfo) (irs.ListenerInfo, error) {
return irs.ListenerInfo{}, errors.New("TENCENT_CANNOT_CHANGE_LISTENER")
}
func (NLBHandler *TencentNLBHandler) ChangeVMGroupInfo(nlbIID irs.IID, vmGroup irs.VMGroupInfo) (irs.VMGroupInfo, error) {
vmGroupInfo, vmGroupInfoErr := NLBHandler.ExtractVMGroupInfo(nlbIID)
if vmGroupInfoErr != nil {
return irs.VMGroupInfo{}, vmGroupInfoErr
}
newNLBId := nlbIID.SystemId
vmGroupInfoResult := irs.VMGroupInfo{}
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "ChangeVMGroupInfo",
CloudOSAPI: "ModifyTargetPort()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDescribeListenersRequest()
request.LoadBalancerId = common.StringPtr(newNLBId)
response, err := NLBHandler.Client.DescribeListeners(request)
if err != nil {
return irs.VMGroupInfo{}, err
}
newListenerId := *response.Response.Listeners[0].ListenerId
port, portErr := strconv.ParseInt(vmGroupInfo.Port, 10, 64)
if portErr != nil {
return irs.VMGroupInfo{}, portErr
}
newPort, newPortErr := strconv.ParseInt(vmGroup.Port, 10, 64)
if newPortErr != nil {
return irs.VMGroupInfo{}, newPortErr
}
modifyTargetRequest := clb.NewModifyTargetPortRequest()
modifyTargetRequest.LoadBalancerId = common.StringPtr(newNLBId)
modifyTargetRequest.ListenerId = common.StringPtr(newListenerId)
modifyTargetRequest.Targets = []*clb.Target{}
for _, target := range *vmGroupInfo.VMs {
modifyTargetRequest.Targets = append(modifyTargetRequest.Targets, &clb.Target{
InstanceId: common.StringPtr(target.SystemId),
Port: common.Int64Ptr(port),
})
}
modifyTargetRequest.NewPort = common.Int64Ptr(newPort)
modifyTargetResponse, modifyTargetErr := NLBHandler.Client.ModifyTargetPort(modifyTargetRequest)
if modifyTargetErr != nil {
return irs.VMGroupInfo{}, modifyTargetErr
}
callogger.Info(call.String(callLogInfo))
targetStatus, targetStatErr := NLBHandler.WaitForDone(*modifyTargetResponse.Response.RequestId)
if targetStatErr != nil {
return irs.VMGroupInfo{}, targetStatErr
}
if targetStatus == Request_Status_Done {
result, resultErr := NLBHandler.ExtractVMGroupInfo(nlbIID)
if resultErr != nil {
return irs.VMGroupInfo{}, resultErr
}
vmGroupInfoResult = result
}
return vmGroupInfoResult, nil
}
func (NLBHandler *TencentNLBHandler) AddVMs(nlbIID irs.IID, vmIIDs *[]irs.IID) (irs.VMGroupInfo, error) {
newNLBId := nlbIID.SystemId
vmGroupInfoResult := irs.VMGroupInfo{}
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "AddVMs",
CloudOSAPI: "RegisterTargets()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDescribeListenersRequest()
request.LoadBalancerId = common.StringPtr(newNLBId)
response, err := NLBHandler.Client.DescribeListeners(request)
if err != nil {
return irs.VMGroupInfo{}, err
}
newListenerId := *response.Response.Listeners[0].ListenerId
backendPort := int64(0)
vmGroupInfo, vmGroupInfoErr := NLBHandler.ExtractVMGroupInfo(nlbIID)
if vmGroupInfoErr != nil {
backendPort = *response.Response.Listeners[0].Port
} else {
port, portErr := strconv.ParseInt(vmGroupInfo.Port, 10, 64)
if portErr != nil {
return irs.VMGroupInfo{}, portErr
}
backendPort = port
}
targetRequest := clb.NewRegisterTargetsRequest()
targetRequest.LoadBalancerId = common.StringPtr(newNLBId)
targetRequest.ListenerId = common.StringPtr(newListenerId)
targetRequest.Targets = []*clb.Target{}
for _, target := range *vmIIDs {
targetRequest.Targets = append(targetRequest.Targets, &clb.Target{
InstanceId: common.StringPtr(target.SystemId),
Port: common.Int64Ptr(backendPort),
})
}
cblogger.Debug(targetRequest.ToJsonString())
targetResponse, targetErr := NLBHandler.Client.RegisterTargets(targetRequest)
if targetErr != nil {
return irs.VMGroupInfo{}, targetErr
}
fmt.Printf("%s", targetResponse.ToJsonString())
callogger.Info(call.String(callLogInfo))
// VM 연결되길 기다림
targetStatus, targetStatErr := NLBHandler.WaitForDone(*targetResponse.Response.RequestId)
if targetStatErr != nil {
return irs.VMGroupInfo{}, targetStatErr
}
if targetStatus == Request_Status_Done {
vmGroupInfo, vmGroupInfoErr := NLBHandler.ExtractVMGroupInfo(nlbIID)
if vmGroupInfoErr != nil {
return irs.VMGroupInfo{}, vmGroupInfoErr
}
vmGroupInfoResult = vmGroupInfo
}
return vmGroupInfoResult, nil
}
func (NLBHandler *TencentNLBHandler) RemoveVMs(nlbIID irs.IID, vmIIDs *[]irs.IID) (bool, error) {
newNLBId := nlbIID.SystemId
//vmGroupInfoResult := irs.VMGroupInfo{}
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "RemoveVMs",
CloudOSAPI: "DeregisterTargets()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDescribeListenersRequest()
request.LoadBalancerId = common.StringPtr(newNLBId)
response, err := NLBHandler.Client.DescribeListeners(request)
if err != nil {
return false, err
}
newListenerId := *response.Response.Listeners[0].ListenerId
backendPort := int64(0)
vmGroupInfo, vmGroupInfoErr := NLBHandler.ExtractVMGroupInfo(nlbIID)
if vmGroupInfoErr != nil {
return false, vmGroupInfoErr
} else {
port, portErr := strconv.ParseInt(vmGroupInfo.Port, 10, 64)
if portErr != nil {
return false, portErr
}
backendPort = port
}
targetRequest := clb.NewDeregisterTargetsRequest()
targetRequest.LoadBalancerId = common.StringPtr(newNLBId)
targetRequest.ListenerId = common.StringPtr(newListenerId)
targetRequest.Targets = []*clb.Target{}
for _, target := range *vmIIDs {
targetRequest.Targets = append(targetRequest.Targets, &clb.Target{
InstanceId: common.StringPtr(target.SystemId),
Port: common.Int64Ptr(backendPort),
})
}
cblogger.Debug(targetRequest.ToJsonString())
targetResponse, targetErr := NLBHandler.Client.DeregisterTargets(targetRequest)
if targetErr != nil {
return false, targetErr
}
fmt.Printf("%s", targetResponse.ToJsonString())
callogger.Info(call.String(callLogInfo))
return true, nil
}
func (NLBHandler *TencentNLBHandler) GetVMGroupHealthInfo(nlbIID irs.IID) (irs.HealthInfo, error) {
cblogger.Info("NLB IID : ", nlbIID.SystemId)
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "GetVMGroupHealthInfo",
CloudOSAPI: "DescribeTargetHealth()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDescribeTargetHealthRequest()
request.LoadBalancerIds = common.StringPtrs([]string{nlbIID.SystemId})
response, err := NLBHandler.Client.DescribeTargetHealth(request)
if err != nil {
cblogger.Errorf("An API error has returned: %s", err.Error())
callLogInfo.ErrorMSG = err.Error()
callogger.Error(call.String(callLogInfo))
return irs.HealthInfo{}, err
}
callogger.Info(call.String(callLogInfo))
vmGroup := response.Response.LoadBalancers[0].Listeners[0].Rules[0].Targets
allVMs := []irs.IID{}
healthyVMs := []irs.IID{}
unHealthyVMs := []irs.IID{}
for _, vm := range vmGroup {
allVMs = append(allVMs, irs.IID{SystemId: *vm.TargetId})
if *vm.HealthStatus {
healthyVMs = append(healthyVMs, irs.IID{SystemId: *vm.TargetId})
} else {
unHealthyVMs = append(unHealthyVMs, irs.IID{SystemId: *vm.TargetId})
}
}
healthInfo := irs.HealthInfo{}
healthInfo.AllVMs = &allVMs
healthInfo.HealthyVMs = &healthyVMs
healthInfo.UnHealthyVMs = &unHealthyVMs
return healthInfo, nil
}
func (NLBHandler *TencentNLBHandler) ChangeHealthCheckerInfo(nlbIID irs.IID, healthChecker irs.HealthCheckerInfo) (irs.HealthCheckerInfo, error) {
newNLBId := nlbIID.SystemId
// logger for HisCall
callogger := call.GetLogger("HISCALL")
callLogInfo := call.CLOUDLOGSCHEMA{
CloudOS: call.TENCENT,
RegionZone: NLBHandler.Region.Zone,
ResourceType: call.NLB,
ResourceName: "ChangeHealthCheckerInfo",
CloudOSAPI: "ModifyListener()",
ElapsedTime: "",
ErrorMSG: "",
}
request := clb.NewDescribeListenersRequest()
request.LoadBalancerId = common.StringPtr(newNLBId)
response, err := NLBHandler.Client.DescribeListeners(request)
if err != nil {
return irs.HealthCheckerInfo{}, err
}
newListenerId := *response.Response.Listeners[0].ListenerId
listenerProtocol := *response.Response.Listeners[0].Protocol
healthCheckerProtocol := healthChecker.Protocol
healthCheckerTimeOut := int64(healthChecker.Timeout)
healthCheckerInterval := int64(healthChecker.Interval)
healthCheckerThreshold := int64(healthChecker.Threshold)
if healthCheckerTimeOut > 0 && healthCheckerInterval > 0 && healthCheckerTimeOut > healthCheckerInterval {
return irs.HealthCheckerInfo{}, errors.New("HealthCheck.IntervalTime should not be less than HealthCheck.TimeOut")
}
changeHealthCheckerRequest := clb.NewModifyListenerRequest()
changeHealthCheckerRequest.HealthCheck = &clb.HealthCheck{}
changeHealthCheckerRequest.LoadBalancerId = common.StringPtr(newNLBId)
changeHealthCheckerRequest.ListenerId = common.StringPtr(newListenerId)
// health Checker port 값이 있을 때만 setting
if !strings.EqualFold(healthChecker.Port, "") {
healthPort, healthErr := strconv.ParseInt(healthChecker.Port, 10, 64)
if healthErr != nil {
return irs.HealthCheckerInfo{}, healthErr
}
changeHealthCheckerRequest.HealthCheck.CheckPort = common.Int64Ptr(healthPort)
}
if healthCheckerTimeOut > 0 {
changeHealthCheckerRequest.HealthCheck.TimeOut = common.Int64Ptr(healthCheckerTimeOut)
}
if healthCheckerInterval > 0 {
changeHealthCheckerRequest.HealthCheck.IntervalTime = common.Int64Ptr(healthCheckerInterval)
}
if healthCheckerThreshold > 0 {
changeHealthCheckerRequest.HealthCheck.HealthNum = common.Int64Ptr(healthCheckerThreshold)
}
if !strings.EqualFold(healthCheckerProtocol, "") {
changeHealthCheckerRequest.HealthCheck.CheckType = common.StringPtr(healthCheckerProtocol)
}
// Listener의 protocol이 UDP일 때 HealthChecker의 CheckType, ContextType은 고정
if strings.EqualFold(listenerProtocol, "UDP") {
changeHealthCheckerRequest.HealthCheck.CheckType = common.StringPtr("CUSTOM")
changeHealthCheckerRequest.HealthCheck.ContextType = common.StringPtr("TEXT")
}
// HealthChecker protocol이 HTTP일 때 Domain,Version Set
if strings.EqualFold(healthCheckerProtocol, "HTTP") {
changeHealthCheckerRequest.HealthCheck.HttpCheckDomain = common.StringPtr("")
changeHealthCheckerRequest.HealthCheck.HttpVersion = common.StringPtr("HTTP/1.1")
}
changeHealthCheckerResponse, err := NLBHandler.Client.ModifyListener(changeHealthCheckerRequest)
if err != nil {
return irs.HealthCheckerInfo{}, err
}
callogger.Info(call.String(callLogInfo))
// Listener 변경을 기다림
changeStatus, changeStatErr := NLBHandler.WaitForDone(*changeHealthCheckerResponse.Response.RequestId)
if changeStatErr != nil {
return irs.HealthCheckerInfo{}, changeStatErr
}
cblogger.Debug(changeStatus)
healthCheckerResult, healthErr := NLBHandler.ExtractHealthCheckerInfo(nlbIID)
if healthErr != nil {
return irs.HealthCheckerInfo{}, healthErr
}
return healthCheckerResult, nil
}
//CLB instance status (creating, running)
func (NLBHandler *TencentNLBHandler) WaitForRun(nlbIID irs.IID) (string, error) {
waitStatus := "Running"
curRetryCnt := 0
maxRetryCnt := 120
for {
request := clb.NewDescribeLoadBalancersRequest()
request.LoadBalancerIds = common.StringPtrs([]string{nlbIID.SystemId})
response, errStatus := NLBHandler.Client.DescribeLoadBalancers(request)
if errStatus != nil {
cblogger.Error(errStatus.Error())
}
curStatus := *response.Response.LoadBalancerSet[0].Status
cblogger.Info("===>NLB Status : ", curStatus)
if curStatus == LoadBalancerSet_Status_Running {
cblogger.Infof("===>NLB 상태가 [%d]라서 대기를 중단합니다.", curStatus)
break
}
curRetryCnt++
cblogger.Infof("NLB 상태가 [%s]이 아니라서 1초 대기후 조회합니다.", waitStatus)
time.Sleep(time.Second * 1)
if curRetryCnt > maxRetryCnt {
cblogger.Errorf("장시간(%d 초) 대기해도 NLB Status 값이 [%s]으로 변경되지 않아서 강제로 중단합니다.", maxRetryCnt, waitStatus)
return "Failed", errors.New("장시간 기다렸으나 생성된 NLB의 상태가 [" + waitStatus + "]으로 바뀌지 않아서 중단 합니다.")
}
}
return waitStatus, nil
}
//Current status of a task (succeeded==Done, failed, in progress)
func (NLBHandler *TencentNLBHandler) WaitForDone(requestId string) (string, error) {
waitStatus := "Done"
curRetryCnt := 0
maxRetryCnt := 120
for {
request := clb.NewDescribeTaskStatusRequest()
request.TaskId = common.StringPtr(requestId)
response, err := NLBHandler.Client.DescribeTaskStatus(request)
if err != nil {
cblogger.Error(err.Error())
}
requestStatus := *response.Response.Status
cblogger.Info("===>request status : ", requestStatus)
if requestStatus == Request_Status_Succeeded {
cblogger.Infof("===>request 상태가 [%s]라서 대기를 중단합니다.", waitStatus)
break
}
curRetryCnt++
cblogger.Infof("request 상태가 [%s]이 아니라서 1초 대기후 조회합니다.", waitStatus)
time.Sleep(time.Second * 1)
if curRetryCnt > maxRetryCnt {
cblogger.Errorf("장시간(%d 초) 대기해도 request Status 값이 [%s]으로 변경되지 않아서 강제로 중단합니다.", maxRetryCnt, waitStatus)
return "Failed", errors.New("장시간 기다렸으나 생성된 request 상태가 [" + waitStatus + "]으로 바뀌지 않아서 중단 합니다.")
}
}
return waitStatus, nil
}
/*
nlb가 존재하는지 check
동일이름이 없으면 false, 있으면 true
*/
func (NLBHandler *TencentNLBHandler) nlbExist(chkName string) (bool, error) {
cblogger.Debugf("chkName : %s", chkName)
request := clb.NewDescribeLoadBalancersRequest()
request.LoadBalancerName = common.StringPtr(chkName)
response, err := NLBHandler.Client.DescribeLoadBalancers(request)
if err != nil {
cblogger.Error(err)
return false, err
}
if *response.Response.TotalCount < 1 {
return false, nil
}
cblogger.Infof("NLB 정보 찾음 - NLBId:[%s] / NLBName:[%s]", *response.Response.LoadBalancerSet[0].LoadBalancerId, *response.Response.LoadBalancerSet[0].LoadBalancerName)
return true, nil
}
/*
조회한 결과에서 Spider의 NLBInfo 값으로 변환
*/
func (NLBHandler *TencentNLBHandler) ExtractNLBDescribeInfo(nlbInfo *clb.LoadBalancer) (irs.NLBInfo, error) {
// vpc name 구하기
VPCHandler := TencentVPCHandler{
Region: NLBHandler.Region,
Client: NLBHandler.VpcClient,
}
cblogger.Debug(VPCHandler)
retVpcInfo, errVpcInfo := VPCHandler.GetVPC(irs.IID{SystemId: *nlbInfo.VpcId})
if errVpcInfo != nil {
cblogger.Error(errVpcInfo)
return irs.NLBInfo{}, errVpcInfo
}
cblogger.Debug(retVpcInfo)
vpcId := retVpcInfo.IId.SystemId
vpcName := retVpcInfo.IId.NameId
// 생성 시간 정보 포맷 변환
createTime, _ := time.Parse("2006-01-02 15:04:05", *nlbInfo.CreateTime)
// NLB Type을 NLBInfo에 맞는 값으로 변환
nlbType := ""
if strings.EqualFold(*nlbInfo.LoadBalancerType, Tencent_LoadBalancerType_Open) {
nlbType = Spider_LoadBalancerType_PUBLIC
} else {
nlbType = Spider_LoadBalancerType_INTERNAL
}
// NLBInfo 채워넣기
resNLBInfo := irs.NLBInfo{
IId: irs.IID{SystemId: *nlbInfo.LoadBalancerId, NameId: *nlbInfo.LoadBalancerName},
VpcIID: irs.IID{SystemId: vpcId, NameId: vpcName},
CreatedTime: createTime,
Type: nlbType,
Scope: "REGION",
}
return resNLBInfo, nil
}
func GetResourceHandler(s string) {
panic("unimplemented")
}
/*
NLB Name으로 Listener를 조회하여 NLBInfo.Listener 값으로 변환
NLB 를 조회하여 Listener에 사용할 IP인 VIP 추출
*/
func (NLBHandler *TencentNLBHandler) ExtractListenerInfo(nlbIID irs.IID) (irs.ListenerInfo, error) {
cblogger.Info("NLB IID : ", nlbIID.SystemId)
// Listener정보 조회
request := clb.NewDescribeListenersRequest()
request.LoadBalancerId = common.StringPtr(nlbIID.SystemId)
response, err := NLBHandler.Client.DescribeListeners(request)
if err != nil {
cblogger.Errorf("An API error has returned: %s", err.Error())
return irs.ListenerInfo{}, err
}
// protocol port set
resListenerInfo := irs.ListenerInfo{
Protocol: *response.Response.Listeners[0].Protocol,
Port: strconv.FormatInt(*response.Response.Listeners[0].Port, 10),
}
// vip 정보 조회 : listener IP
ipRequest := clb.NewDescribeLoadBalancersRequest()
ipRequest.LoadBalancerIds = common.StringPtrs([]string{nlbIID.SystemId})
ipResponse, ipErr := NLBHandler.Client.DescribeLoadBalancers(ipRequest)
if ipErr != nil {
cblogger.Errorf("An API error has returned: %s", err.Error())
return irs.ListenerInfo{}, ipErr
}
resListenerInfo.IP = *ipResponse.Response.LoadBalancerSet[0].LoadBalancerVips[0]
return resListenerInfo, nil
}
/*
VM Group 정보 조회
*/
func (NLBHandler *TencentNLBHandler) ExtractVMGroupInfo(nlbIID irs.IID) (irs.VMGroupInfo, error) {
cblogger.Info("NLB IID : ", nlbIID.SystemId)
request := clb.NewDescribeTargetsRequest()
request.LoadBalancerId = common.StringPtr(nlbIID.SystemId)
response, err := NLBHandler.Client.DescribeTargets(request)
if err != nil {
cblogger.Errorf("An API error has returned: %s", err.Error())
return irs.VMGroupInfo{}, err
}
cblogger.Debug(response.Response.Listeners[0].Targets)
if len(response.Response.Listeners[0].Targets) == 0 {
return irs.VMGroupInfo{}, errors.New("Target VM does not exist!")
}
// https://intl.cloud.tencent.com/ko/document/product/214/6151
// If you use a layer-4 listener (i.e., layer-4 protocol forwarding),
// the CLB instance will establish a TCP connection with the real server on the listening port,
// and directly forward requests to the real server.
// TCP, UDP Listener일 때 Real Server Protocol을 TCP로 설정
resVmInfo := irs.VMGroupInfo{
Protocol: Protocol_TCP,
Port: strconv.FormatInt(*response.Response.Listeners[0].Targets[0].Port, 10),
}
vms := []irs.IID{}
for _, target := range response.Response.Listeners[0].Targets {
vms = append(vms, irs.IID{SystemId: *target.InstanceId, NameId: *target.InstanceName})
}
resVmInfo.VMs = &vms
return resVmInfo, nil
}
/*
Health Checker 정보 조회
*/
func (NLBHandler *TencentNLBHandler) ExtractHealthCheckerInfo(nlbIID irs.IID) (irs.HealthCheckerInfo, error) {
cblogger.Info("NLB IID : ", nlbIID.SystemId)
request := clb.NewDescribeListenersRequest()
request.LoadBalancerId = common.StringPtr(nlbIID.SystemId)
response, err := NLBHandler.Client.DescribeListeners(request)