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harvester.go
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harvester.go
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package ecser
import (
"context"
"fmt"
"github.com/harvester/harvester/pkg/apis/harvesterhci.io/v1beta1"
harvClient "github.com/harvester/harvester/pkg/generated/clientset/versioned"
"github.com/longhorn/longhorn-manager/util"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/zhouqunjie-cs/PCM/common/tenanter"
"github.com/zhouqunjie-cs/PCM/lan_trans/idl/pbecs"
"github.com/zhouqunjie-cs/PCM/lan_trans/idl/pbtenant"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
k8smetav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
k8s "k8s.io/client-go/kubernetes"
kubirtv1 "kubevirt.io/client-go/api/v1"
"strconv"
"strings"
"time"
)
const (
prefix = "harvesterhci.io"
vmAnnotationPVC = prefix + "/volumeClaimTemplates"
vmAnnotationNetworkIps = "network.harvesterhci.io/ips"
defaultCloudInitUserData = "#cloud-config\npackage_update: true\npackages:\n - qemu-guest-agent\nruncmd:\n - - systemctl\n - enable\n - '--now'\n - qemu-guest-agent\n"
)
type Config struct {
Host string
Token string
Port int
}
type HarVMer struct {
k8sCli *k8s.Clientset
harvCli *harvClient.Clientset
region tenanter.Region
tenanter tenanter.Tenanter
}
func newHarvesterClient(tenant tenanter.Tenanter) (Ecser, error) {
var (
k8sclient *k8s.Clientset
harvesterClient *harvClient.Clientset
err error
)
switch t := tenant.(type) {
case *tenanter.AccessKeyTenant:
k8sclient, err = GetKubernetesClient(t.GetUrl(), t.GetToken())
if err != nil {
return nil, err
}
harvesterClient, err = GetHarvesterClient(t.GetUrl(), t.GetToken())
if err != nil {
return nil, err
}
default:
}
if err != nil {
return nil, errors.Wrap(err, "init harvester client error")
}
return &HarVMer{
k8sCli: k8sclient,
harvCli: harvesterClient,
region: nil,
tenanter: tenant,
}, nil
}
func (h *HarVMer) CreateEcs(ctx context.Context, req *pbecs.CreateEcsReq) (resp *pbecs.CreateEcsResp, err error) {
var (
vmTemplate *kubirtv1.VirtualMachineInstanceTemplateSpec
vmImage *v1beta1.VirtualMachineImage
)
if req.ImageId != "" {
vmImage, err = h.harvCli.HarvesterhciV1beta1().VirtualMachineImages(req.GetNamespace()).Get(context.TODO(), req.ImageId, k8smetav1.GetOptions{})
if err != nil {
return nil, errors.Wrap(err, "get vm image error")
}
} else {
return nil, errors.Wrap(err, "Image ID given does not exist!")
}
storageClassName := vmImage.Status.StorageClassName
vmNameBase := req.InstanceName
vmLabels := map[string]string{
prefix + "/creator": "harvester",
}
vmiLabels := vmLabels
_amount := req.Amount
if _amount == 0 {
return nil, fmt.Errorf("VM count provided is 0, no VM will be created")
}
repAmount := 0
InstanceIds := make([]string, 0)
for i := 1; i <= int(_amount); i++ {
var (
vmName string
secretRandomID string
)
randomID := util.RandomID()
if _amount > 1 {
vmName = vmNameBase + "-" + fmt.Sprint(i)
secretRandomID = vmNameBase + "-" + randomID
} else {
vmName = vmNameBase
secretRandomID = vmNameBase + "-" + randomID
}
vmiLabels[prefix+"/vmName"] = vmName
vmiLabels[prefix+"/vmNamePrefix"] = vmNameBase
diskRandomID := util.RandomID()
pvcName := vmName + "-disk-0-" + diskRandomID
pvcAnnotation := "[{\"metadata\":{\"name\":\"" + pvcName + "\",\"annotations\":{\"harvesterhci.io/imageId\":\"" + req.GetNamespace() + "/" + req.GetImageId() + "\"}},\"spec\":{\"accessModes\":[\"ReadWriteMany\"],\"resources\":{\"requests\":{\"storage\":\"" + req.GetDiskSize() + "\"}},\"volumeMode\":\"Block\",\"storageClassName\":\"" + storageClassName + "\"}}]"
vmTemplate, err = buildVMTemplate(int(req.GetCpu()), req.GetMemory(), req.GetSshKey(), h.harvCli, pvcName, vmiLabels, vmNameBase, secretRandomID)
if err != nil {
return nil, errors.Wrap(err, "")
}
vm := &kubirtv1.VirtualMachine{
ObjectMeta: k8smetav1.ObjectMeta{
Name: vmName,
Namespace: req.GetNamespace(),
Annotations: map[string]string{
vmAnnotationPVC: pvcAnnotation,
vmAnnotationNetworkIps: "[]",
},
Labels: vmLabels,
},
Spec: kubirtv1.VirtualMachineSpec{
Running: NewTrue(),
Template: vmTemplate,
},
}
resp, err1 := h.harvCli.KubevirtV1().VirtualMachines(req.GetNamespace()).Create(context.TODO(), vm, k8smetav1.CreateOptions{})
if err1 != nil {
return nil, errors.Wrap(err, "VM create failed")
}
var sshKey *v1beta1.KeyPair
cloudInitSSHSection := ""
if req.GetSshKey() != "" {
sshArr := strings.Split(req.GetSshKey(), "/")
if len(sshArr) != 2 {
return nil, errors.New("sshKeyName should be in format namespace/name")
}
sshKey, err = h.harvCli.HarvesterhciV1beta1().KeyPairs(sshArr[0]).Get(context.TODO(), sshArr[1], k8smetav1.GetOptions{})
if err != nil {
return nil, errors.Wrap(err, "error during getting keypair from Harvester")
}
cloudInitSSHSection = "\nssh_authorized_keys:\n - >-\n" + sshKey.Spec.PublicKey + "\n"
logrus.Debugf("SSH Key Name %s given does exist!", req.GetSshKey())
}
if req.UserDataTemplate == "" {
req.UserDataTemplate = defaultCloudInitUserData
}
// Create the secret for the VM
if _, secreterr := createCloudInitDataFromSecret(h.k8sCli, vmName, resp.ObjectMeta.UID, secretRandomID, req.Namespace, req.UserDataTemplate+cloudInitSSHSection, req.NetworkDataTemplate); secreterr != nil {
logrus.Errorf("Create secret failed, %s", secreterr)
return nil, errors.Wrap(secreterr, "Create cloud init data from secret failed")
}
InstanceIds = append(InstanceIds, string(resp.UID))
repAmount++
}
isFinished := false
if int32(repAmount) == req.Amount {
isFinished = true
}
return &pbecs.CreateEcsResp{
Provider: pbtenant.CloudProvider_harvester,
AccountName: h.tenanter.AccountName(),
InstanceIdSets: InstanceIds,
Finished: isFinished,
}, nil
}
//buildVMTemplate creates a *kubirtv1.VirtualMachineInstanceTemplateSpec from the CLI Flags and some computed values
func buildVMTemplate(vCpu int, memory, sshKeyName string, c *harvClient.Clientset,
pvcName string, vmiLabels map[string]string, vmName string, secretName string) (vmTemplate *kubirtv1.VirtualMachineInstanceTemplateSpec, err error) {
vmTemplate = nil
_memory := resource.MustParse(memory)
if sshKeyName != "" {
sshArr := strings.Split(sshKeyName, "/")
if len(sshArr) != 2 {
return nil, errors.New("sshKeyName should be in format namespace/name")
}
_, keyerr := c.HarvesterhciV1beta1().KeyPairs(sshArr[0]).Get(context.TODO(), sshArr[1], k8smetav1.GetOptions{})
if keyerr != nil {
return nil, errors.Wrap(keyerr, "error during getting keypair from Harvester")
}
logrus.Debugf("SSH Key Name %s given does exist!", sshKeyName)
}
logrus.Debug("CloudInit: ")
vmTemplate = &kubirtv1.VirtualMachineInstanceTemplateSpec{
ObjectMeta: k8smetav1.ObjectMeta{
Annotations: vmiAnnotations(pvcName, sshKeyName),
Labels: vmiLabels,
},
Spec: kubirtv1.VirtualMachineInstanceSpec{
Hostname: vmName,
Networks: []kubirtv1.Network{
{
Name: "default",
NetworkSource: kubirtv1.NetworkSource{
Multus: &kubirtv1.MultusNetwork{
NetworkName: "default/service-network",
},
},
},
},
Volumes: []kubirtv1.Volume{
{
Name: "disk-0",
VolumeSource: kubirtv1.VolumeSource{
PersistentVolumeClaim: &kubirtv1.PersistentVolumeClaimVolumeSource{
PersistentVolumeClaimVolumeSource: v1.PersistentVolumeClaimVolumeSource{
ClaimName: pvcName,
},
},
},
},
{
Name: "cloudinitdisk",
VolumeSource: kubirtv1.VolumeSource{
CloudInitNoCloud: &kubirtv1.CloudInitNoCloudSource{
UserDataSecretRef: &v1.LocalObjectReference{Name: secretName},
NetworkDataSecretRef: &v1.LocalObjectReference{Name: secretName},
},
},
},
},
Domain: kubirtv1.DomainSpec{
CPU: &kubirtv1.CPU{
Cores: uint32(vCpu),
Sockets: uint32(1),
Threads: uint32(1),
},
Memory: &kubirtv1.Memory{
Guest: &_memory,
},
Devices: kubirtv1.Devices{
Inputs: []kubirtv1.Input{
{
Bus: "usb",
Type: "tablet",
Name: "tablet",
},
},
Interfaces: []kubirtv1.Interface{
{
Name: "default",
Model: "virtio",
InterfaceBindingMethod: kubirtv1.DefaultBridgeNetworkInterface().InterfaceBindingMethod,
},
},
Disks: []kubirtv1.Disk{
{
BootOrder: PointerToUint(1),
Name: "disk-0",
DiskDevice: kubirtv1.DiskDevice{
Disk: &kubirtv1.DiskTarget{
Bus: "virtio",
},
},
},
{
Name: "cloudinitdisk",
DiskDevice: kubirtv1.DiskDevice{
Disk: &kubirtv1.DiskTarget{
Bus: "virtio",
},
},
},
},
},
Resources: kubirtv1.ResourceRequirements{
Limits: v1.ResourceList{
"cpu": resource.MustParse(strconv.Itoa(vCpu)),
"memory": resource.MustParse(memory),
},
Requests: v1.ResourceList{
"memory": resource.MustParse(memory),
},
},
},
Affinity: &v1.Affinity{
PodAntiAffinity: &v1.PodAntiAffinity{
PreferredDuringSchedulingIgnoredDuringExecution: []v1.WeightedPodAffinityTerm{
{
Weight: int32(1),
PodAffinityTerm: v1.PodAffinityTerm{
TopologyKey: "kubernetes.io/hostname",
LabelSelector: &k8smetav1.LabelSelector{
MatchLabels: map[string]string{
prefix + "/vmNamePrefix": vmName,
},
},
},
},
},
},
},
},
}
return
}
// vmiAnnotations generates a map of strings to be injected as annotations from a PVC name and an SSK Keyname
func vmiAnnotations(pvcName string, sshKeyName string) map[string]string {
sshKey := "[]"
if sshKeyName != "" {
sshKey = "[\"" + sshKeyName + "\"]"
}
return map[string]string{
prefix + "/diskNames": "[\"" + pvcName + "\"]",
prefix + "/sshNames": sshKey,
}
}
//CreateCloudInitDataFromSecret creates a cloud-init configmap from a secret
func createCloudInitDataFromSecret(c *k8s.Clientset, vmName string, uid types.UID, secretName, namespace, userData, networkData string) (secret *v1.Secret, err error) {
toCreate := &v1.Secret{
TypeMeta: k8smetav1.TypeMeta{
Kind: "Secret",
APIVersion: "v1",
},
ObjectMeta: k8smetav1.ObjectMeta{
Name: secretName,
Namespace: namespace,
Labels: map[string]string{
prefix + "/cloud-init-template": "harvester",
},
OwnerReferences: []k8smetav1.OwnerReference{
{
APIVersion: "kubevirt.io/v1",
Kind: "VirtualMachine",
Name: vmName,
UID: uid,
},
},
},
Type: "secret",
Data: map[string][]byte{
"userdata": []byte(userData),
"networkdata": []byte(networkData),
},
}
resp, err := c.CoreV1().Secrets(namespace).Create(context.TODO(), toCreate, k8smetav1.CreateOptions{})
if err != nil {
return nil, errors.Wrap(err, "error during getting cloud-init secret")
}
return resp, nil
}
func (h *HarVMer) DeleteEcs(ctx context.Context, req *pbecs.DeleteEcsReq) (resp *pbecs.DeleteEcsResp, err error) {
if req.Namespace == "" {
return nil, errors.New("namespace is required")
}
vm, err := h.harvCli.KubevirtV1().VirtualMachines(req.GetNamespace()).Get(context.TODO(), req.GetInstanceName(), k8smetav1.GetOptions{})
if err != nil {
return nil, errors.Wrap(err, "VM does not exist")
}
err = h.harvCli.KubevirtV1().VirtualMachines(req.GetNamespace()).Delete(context.TODO(), req.GetInstanceName(), k8smetav1.DeleteOptions{})
if err != nil {
logrus.Errorf("delete vm error: %v", err)
return nil, errors.Wrap(err, "VM could not be deleted successfully: %w")
}
//delete vm disk
if req.DiskName != "" {
for _, delName := range strings.Split(req.DiskName, ",") {
for _, disk := range vm.Spec.Template.Spec.Volumes {
if disk.Name == delName {
ClaimName := disk.VolumeSource.PersistentVolumeClaim.ClaimName
err1 := h.k8sCli.CoreV1().PersistentVolumeClaims(req.GetNamespace()).Delete(context.TODO(), ClaimName, k8smetav1.DeleteOptions{})
if err1 != nil {
logrus.Errorf("delete pvc failed,err:%v", err1)
return nil, errors.Wrap(err, "VM disk not be deleted successfully")
}
}
}
}
}
return &pbecs.DeleteEcsResp{
Provider: pbtenant.CloudProvider_harvester,
AccountName: h.tenanter.AccountName(),
}, nil
}
func (h *HarVMer) UpdateEcs(ctx context.Context, req *pbecs.UpdateEcsReq) (resp *pbecs.UpdateEcsResp, err error) {
//查询删除的vm
vm, err := h.harvCli.KubevirtV1().VirtualMachines(req.GetNamespace()).Get(context.TODO(), req.GetInstanceName(), k8smetav1.GetOptions{})
if err != nil {
return nil, errors.Wrap(err, "VM does not exist")
}
if req.Cpu != "" && req.Memory != "" {
vm.Spec.Template.Spec.Domain.Resources = kubirtv1.ResourceRequirements{
Limits: v1.ResourceList{
"cpu": resource.MustParse(req.Cpu),
"memory": resource.MustParse(req.Memory),
},
}
}
vm.ObjectMeta.Annotations["field.cattle.io/description"] = req.Description
if req.Cpu != "" {
j, err := strconv.ParseUint(req.Cpu, 10, 32)
if err != nil {
return nil, errors.Wrap(err, "cpu is not a number")
}
vm.Spec.Template.Spec.Domain.CPU = &kubirtv1.CPU{
Cores: uint32(j),
Sockets: uint32(1),
Threads: uint32(1),
}
}
if req.Memory != "" {
_memory := resource.MustParse(req.Memory)
vm.Spec.Template.Spec.Domain.Memory = &kubirtv1.Memory{
Guest: &_memory,
}
}
if err != nil {
return nil, errors.Wrap(err, "Harvester client connection failed")
}
//update
_, err = h.harvCli.KubevirtV1().VirtualMachines(req.GetNamespace()).Update(context.TODO(), vm, k8smetav1.UpdateOptions{})
if err != nil {
return nil, errors.Wrap(err, "VM update failed")
}
if req.IsRestart {
//重启
err = restartVmByName(h.harvCli, req.GetNamespace(), req.GetInstanceName())
if err != nil {
return nil, errors.Wrap(err, "VM restart failed")
}
}
return &pbecs.UpdateEcsResp{
Provider: pbtenant.CloudProvider_harvester,
AccountName: h.tenanter.AccountName(),
}, nil
}
func (h *HarVMer) ListDetail(ctx context.Context, req *pbecs.ListDetailReq) (resp *pbecs.ListDetailResp, err error) {
vmList, err := h.harvCli.KubevirtV1().VirtualMachines(req.GetNamespace()).List(context.TODO(), k8smetav1.ListOptions{})
if err != nil {
return nil, errors.Wrap(err, "VM list failed")
}
vmiList, err := h.harvCli.KubevirtV1().VirtualMachineInstances(req.GetNamespace()).List(context.TODO(), k8smetav1.ListOptions{})
if err != nil {
return nil, errors.Wrap(err, "VMI list failed")
}
vmiMap := map[string]kubirtv1.VirtualMachineInstance{}
for _, vmi := range vmiList.Items {
vmiMap[vmi.Name] = vmi
}
var ecses = make([]*pbecs.EcsInstance, len(vmList.Items))
for k, vm := range vmList.Items {
running := *vm.Spec.Running
var state string
if running {
state = "Running"
} else {
state = "Not Running"
}
IP := make([]string, 0)
if vmiMap[vm.Name].Status.Interfaces == nil {
IP = append(IP, "")
} else {
IP = append(IP, vmiMap[vm.Name].Status.Interfaces[0].IP)
}
ecses[k] = &pbecs.EcsInstance{
Provider: pbtenant.CloudProvider_harvester,
AccountName: h.tenanter.AccountName(),
Status: state,
InstanceName: vm.Name,
Node: vmiMap[vm.Name].Status.NodeName,
Cpu: vm.Spec.Template.Spec.Domain.Resources.Limits.Cpu().String(),
Memory: vm.Spec.Template.Spec.Domain.Resources.Limits.Memory().String(),
PublicIps: IP,
CreationTime: vm.CreationTimestamp.String(),
Description: vm.ObjectMeta.Annotations["field.cattle.io/description"],
Namespace: vm.Namespace,
}
}
isFinished := false
if len(ecses) > 0 {
isFinished = true
}
return &pbecs.ListDetailResp{
Ecses: ecses,
Finished: isFinished,
}, nil
}
func (h *HarVMer) ActionEcs(ctx context.Context, req *pbecs.ActionReq) (resp *pbecs.ActionResp, err error) {
status := ""
switch req.GetActionType() {
case pbecs.ActionType_start:
err := startVmByName(h.harvCli, req.GetNamespace(), req.GetVmName())
if err != nil {
return nil, err
}
status = "Running"
case pbecs.ActionType_stop:
err := stopVmByName(h.harvCli, req.GetNamespace(), req.GetVmName())
if err != nil {
return nil, err
}
status = "Off"
case pbecs.ActionType_restart:
err := restartVmByName(h.harvCli, req.GetNamespace(), req.GetVmName())
if err != nil {
return nil, err
}
status = "Running"
}
return &pbecs.ActionResp{
Provider: pbtenant.CloudProvider_harvester,
AccountName: h.tenanter.AccountName(),
Status: status,
}, nil
}
//startVmByName starts a VM by first issuing a GET using the VM name, then updating the resulting VM object
func startVmByName(c *harvClient.Clientset, namespace, vmName string) error {
vm, err := c.KubevirtV1().VirtualMachines(namespace).Get(context.TODO(), vmName, k8smetav1.GetOptions{})
if err != nil {
return errors.Wrap(err, "VM not found")
}
*vm.Spec.Running = true
_, err = c.KubevirtV1().VirtualMachines(namespace).Update(context.TODO(), vm, k8smetav1.UpdateOptions{})
if err != nil {
return errors.Wrap(err, "VM start failed")
}
return nil
}
//stopVmByName will stop a VM by first finding it by its name and then call stopBMbyRef function
func stopVmByName(c *harvClient.Clientset, namespace, vmName string) error {
vm, err := c.KubevirtV1().VirtualMachines(namespace).Get(context.TODO(), vmName, k8smetav1.GetOptions{})
if err != nil {
return errors.Wrap(err, "VM not found")
}
*vm.Spec.Running = false
_, err = c.KubevirtV1().VirtualMachines(namespace).Update(context.TODO(), vm, k8smetav1.UpdateOptions{})
if err != nil {
return errors.Wrap(err, "VM stop failed")
}
return nil
}
//restartVMbyName will restart a VM by first finding it by its name and then call restartVMbyRef function
func restartVmByName(c *harvClient.Clientset, namespace, vmName string) error {
vm, err := c.KubevirtV1().VirtualMachines(namespace).Get(context.TODO(), vmName, k8smetav1.GetOptions{})
if err != nil {
return errors.Wrap(err, "VM not found")
}
err = stopVmByName(c, namespace, vm.Name)
if err != nil {
return errors.Wrap(err, "VM stop failed")
}
select {
case <-time.Tick(1 * time.Second):
return startVmByName(c, namespace, vm.Name)
}
}