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vm.go
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vm.go
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package vm
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"github.com/KubeOperator/FusionComputeGolangSDK/pkg/client"
"github.com/KubeOperator/FusionComputeGolangSDK/pkg/common"
"path"
"strconv"
"strings"
)
const (
siteMask = "<site_uri>"
vmUrl = "<site_uri>/vms"
)
type Manager interface {
ListVm(isTemplate bool) ([]Vm, error)
GetVM(vmUri string) (*Vm, error)
CloneVm(templateUri string, request CloneVmRequest) (*CloneVmResponse, error)
DeleteVm(vmUri string) (*DeleteVmResponse, error)
UploadImage(vmUri string, request ImportTemplateRequest) (*ImportTemplateResponse, error)
}
func NewManager(client client.FusionComputeClient, siteUri string) Manager {
return &manager{client: client, siteUri: siteUri}
}
type manager struct {
client client.FusionComputeClient
siteUri string
}
func (m *manager) CloneVm(templateUri string, request CloneVmRequest) (*CloneVmResponse, error) {
for n := range request.VmCustomization.NicSpecification {
if !strings.Contains(request.VmCustomization.NicSpecification[n].Netmask, ".") {
b, err := strconv.Atoi(request.VmCustomization.NicSpecification[0].Netmask)
if err != nil {
return nil, errors.New(fmt.Sprintf("can not parse netmask: %s", err.Error()))
}
mask, err := parseMask(b)
if err != nil {
return nil, errors.New(fmt.Sprintf("can not parse netmask: %s", err.Error()))
}
request.VmCustomization.NicSpecification[n].Netmask = mask
}
}
vm, err := m.GetVM(templateUri)
if err != nil {
return nil, err
}
disks := vm.VmConfig.Disks
if len(disks) > 0 {
if request.Config.Disks[0].QuantityGB < vm.VmConfig.Disks[0].QuantityGB {
request.Config.Disks[0].QuantityGB = vm.VmConfig.Disks[0].QuantityGB
}
}
var cloneVmResponse CloneVmResponse
api, err := m.client.GetApiClient()
if err != nil {
return nil, err
}
resp, err := api.R().SetBody(&request).Post(path.Join(templateUri, "action", "clone"))
if err != nil {
return nil, err
}
if resp.IsSuccess() {
err := json.Unmarshal(resp.Body(), &cloneVmResponse)
if err != nil {
return nil, err
}
} else {
return nil, common.FormatHttpError(resp)
}
return &cloneVmResponse, nil
}
func (m *manager) ListVm(isTemplate bool) ([]Vm, error) {
var vms []Vm
api, err := m.client.GetApiClient()
if err != nil {
return nil, err
}
request := api.R()
if isTemplate {
request.SetQueryParam("isTemplate", "true")
}
resp, err := request.Get(strings.Replace(vmUrl, siteMask, m.siteUri, -1))
if err != nil {
return nil, err
}
if resp.IsSuccess() {
var listVmResponse ListVmResponse
err := json.Unmarshal(resp.Body(), &listVmResponse)
if err != nil {
return nil, err
}
vms = listVmResponse.Vms
} else {
return nil, common.FormatHttpError(resp)
}
return vms, nil
}
func (m *manager) DeleteVm(vmUri string) (*DeleteVmResponse, error) {
var deleteVmResponse DeleteVmResponse
api, err := m.client.GetApiClient()
if err != nil {
return nil, err
}
resp, err := api.R().Delete(vmUri)
if err != nil {
return nil, err
}
if resp.IsSuccess() {
err := json.Unmarshal(resp.Body(), &deleteVmResponse)
if err != nil {
return nil, err
}
} else {
return nil, common.FormatHttpError(resp)
}
return &deleteVmResponse, nil
}
func (m *manager) GetVM(vmUri string) (*Vm, error) {
var item Vm
api, err := m.client.GetApiClient()
if err != nil {
return nil, err
}
resp, err := api.R().Get(vmUri)
if err != nil {
return nil, err
}
if resp.IsSuccess() {
err := json.Unmarshal(resp.Body(), &item)
if err != nil {
return nil, err
}
} else {
return nil, common.FormatHttpError(resp)
}
return &item, nil
}
func (m *manager) UploadImage(vmUri string, request ImportTemplateRequest) (*ImportTemplateResponse, error) {
var res ImportTemplateResponse
api, err := m.client.GetApiClient()
if err != nil {
return nil, err
}
resp, err := api.R().SetBody(&request).Post(path.Join(vmUri, "action", "import"))
if err != nil {
return nil, err
}
if resp.IsSuccess() {
err := json.Unmarshal(resp.Body(), &res)
if err != nil {
return nil, err
}
return &res, nil
} else {
return nil, common.FormatHttpError(resp)
}
}
func parseMask(num int) (mask string, err error) {
var buff bytes.Buffer
for i := 0; i < int(num); i++ {
buff.WriteString("1")
}
for i := num; i < 32; i++ {
buff.WriteString("0")
}
masker := buff.String()
a, _ := strconv.ParseUint(masker[:8], 2, 64)
b, _ := strconv.ParseUint(masker[8:16], 2, 64)
c, _ := strconv.ParseUint(masker[16:24], 2, 64)
d, _ := strconv.ParseUint(masker[24:32], 2, 64)
resultMask := fmt.Sprintf("%v.%v.%v.%v", a, b, c, d)
return resultMask, nil
}