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provider.go
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provider.go
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package ovirtprovider
import (
"errors"
"fmt"
"strings"
k8serrors "k8s.io/apimachinery/pkg/api/errors"
cdiv1 "kubevirt.io/containerized-data-importer/pkg/apis/core/v1alpha1"
ctrlConfig "github.com/kubevirt/vm-import-operator/pkg/config/controller"
kvConfig "github.com/kubevirt/vm-import-operator/pkg/config/kubevirt"
"github.com/kubevirt/vm-import-operator/pkg/ownerreferences"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/kubevirt/vm-import-operator/pkg/os"
oos "github.com/kubevirt/vm-import-operator/pkg/providers/ovirt/os"
v2vv1 "github.com/kubevirt/vm-import-operator/pkg/apis/v2v/v1beta1"
pclient "github.com/kubevirt/vm-import-operator/pkg/client"
"github.com/kubevirt/vm-import-operator/pkg/configmaps"
"github.com/kubevirt/vm-import-operator/pkg/datavolumes"
provider "github.com/kubevirt/vm-import-operator/pkg/providers"
"github.com/kubevirt/vm-import-operator/pkg/providers/ovirt/mapper"
"github.com/kubevirt/vm-import-operator/pkg/providers/ovirt/mappings"
otemplates "github.com/kubevirt/vm-import-operator/pkg/providers/ovirt/templates"
"github.com/kubevirt/vm-import-operator/pkg/providers/ovirt/validation"
"github.com/kubevirt/vm-import-operator/pkg/providers/ovirt/validation/validators"
"github.com/kubevirt/vm-import-operator/pkg/secrets"
templates "github.com/kubevirt/vm-import-operator/pkg/templates"
"github.com/kubevirt/vm-import-operator/pkg/utils"
"github.com/kubevirt/vm-import-operator/pkg/virtualmachines"
templatev1 "github.com/openshift/api/template/v1"
tempclient "github.com/openshift/client-go/template/clientset/versioned/typed/template/v1"
ovirtsdk "github.com/ovirt/go-ovirt"
yaml "gopkg.in/yaml.v2"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
kubevirtv1 "kubevirt.io/client-go/api/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
rclient "sigs.k8s.io/controller-runtime/pkg/client"
)
const (
ovirtLabel = "oVirt"
ovirtSecretKey = "ovirt"
keyAccessKey = "accessKeyId"
keySecretKey = "secretKey"
diskNameFormat = "disk-%v"
)
var (
labels = map[string]string{
"origin": ovirtLabel,
}
)
// OvirtProvider is Ovirt implementation of the Provider interface to support importing VM from ovirt
type OvirtProvider struct {
ovirtSecretDataMap map[string]string
ovirtClient pclient.VMClient
validator validation.VirtualMachineImportValidator
vm *ovirtsdk.Vm
vmiObjectMeta metav1.ObjectMeta
vmiTypeMeta metav1.TypeMeta
resourceMapping *v2vv1.OvirtMappings
osFinder oos.OSFinder
templateFinder *otemplates.TemplateFinder
templateHandler *templates.TemplateHandler
secretsManager provider.SecretsManager
configMapsManager provider.ConfigMapsManager
datavolumesManager provider.DataVolumesManager
virtualMachineManager provider.VirtualMachineManager
factory pclient.Factory
instance *v2vv1.VirtualMachineImport
}
// NewOvirtProvider creates new OvirtProvider configured with dependencies
func NewOvirtProvider(vmiObjectMeta metav1.ObjectMeta, vmiTypeMeta metav1.TypeMeta, client client.Client, tempClient *tempclient.TemplateV1Client, factory pclient.Factory, kvConfigProvider kvConfig.KubeVirtConfigProvider, ctrlConfig ctrlConfig.ControllerConfig) OvirtProvider {
validator := validators.NewValidatorWrapper(client, kvConfigProvider)
secretsManager := secrets.NewManager(client)
configMapsManager := configmaps.NewManager(client)
datavolumesManager := datavolumes.NewManager(client)
virtualMachineManager := virtualmachines.NewManager(client)
templateProvider := templates.NewTemplateProvider(tempClient)
osFinder := oos.OVirtOSFinder{OsMapProvider: os.NewOSMapProvider(client, ctrlConfig.OsConfigMapName(), ctrlConfig.OsConfigMapNamespace())}
return OvirtProvider{
vmiObjectMeta: vmiObjectMeta,
vmiTypeMeta: vmiTypeMeta,
validator: validation.NewVirtualMachineImportValidator(validator),
osFinder: &osFinder,
templateFinder: otemplates.NewTemplateFinder(templateProvider, &osFinder),
templateHandler: templates.NewTemplateHandler(templateProvider),
secretsManager: &secretsManager,
configMapsManager: &configMapsManager,
datavolumesManager: &datavolumesManager,
virtualMachineManager: &virtualMachineManager,
factory: factory,
}
}
// GetVMStatus provides source VM status
func (o *OvirtProvider) GetVMStatus() (provider.VMStatus, error) {
vm, err := o.getVM()
if err != nil {
return "", err
}
if status, ok := vm.Status(); ok {
switch status {
case ovirtsdk.VMSTATUS_DOWN:
return provider.VMStatusDown, nil
case ovirtsdk.VMSTATUS_UP:
return provider.VMStatusUp, nil
}
}
return "", fmt.Errorf("VM doesn't have a legal status. Allowed statuses: [%v, %v]", ovirtsdk.VMSTATUS_UP, ovirtsdk.VMSTATUS_DOWN)
}
// Init ovirt provider using given secret
func (o *OvirtProvider) Init(secret *corev1.Secret, instance *v2vv1.VirtualMachineImport) error {
o.ovirtSecretDataMap = make(map[string]string)
err := yaml.Unmarshal(secret.Data[ovirtSecretKey], &o.ovirtSecretDataMap)
if err != nil {
return err
}
if _, ok := o.ovirtSecretDataMap["apiUrl"]; !ok {
return fmt.Errorf("oVirt secret must contain apiUrl attribute")
}
if len(o.ovirtSecretDataMap["apiUrl"]) == 0 {
return fmt.Errorf("oVirt secret apiUrl cannot be empty")
}
if _, ok := o.ovirtSecretDataMap["username"]; !ok {
return fmt.Errorf("oVirt secret must contain username attribute")
}
if len(o.ovirtSecretDataMap["username"]) == 0 {
return fmt.Errorf("oVirt secret username cannot be empty")
}
if _, ok := o.ovirtSecretDataMap["password"]; !ok {
return fmt.Errorf("oVirt secret must contain password attribute")
}
if len(o.ovirtSecretDataMap["password"]) == 0 {
return fmt.Errorf("oVirt secret password cannot be empty")
}
if _, ok := o.ovirtSecretDataMap["caCert"]; !ok {
return fmt.Errorf("oVirt secret must contain caCert attribute")
}
if len(o.ovirtSecretDataMap["caCert"]) == 0 {
return fmt.Errorf("oVirt secret caCert cannot be empty")
}
o.instance = instance
return nil
}
// TestConnection tests the connection to ovirt provider
func (o *OvirtProvider) TestConnection() error {
client, err := o.getClient()
if err != nil {
return err
}
err = client.TestConnection()
if err != nil {
return err
}
return nil
}
func (o *OvirtProvider) getClient() (pclient.VMClient, error) {
if o.ovirtClient == nil {
client, err := o.factory.NewOvirtClient(o.ovirtSecretDataMap)
if err != nil {
return nil, err
}
o.ovirtClient = client
}
return o.ovirtClient, nil
}
func (o *OvirtProvider) getVM() (*ovirtsdk.Vm, error) {
if o.vm == nil {
err := o.LoadVM(o.instance.Spec.Source)
if err != nil {
return nil, err
}
}
return o.vm, nil
}
// GetVMName return oVirt virtual machine to be imported
func (o *OvirtProvider) GetVMName() (string, error) {
vm, err := o.getVM()
if err != nil {
return "", err
}
vmName, _ := vm.Name()
return vmName, nil
}
// Close the connection to ovirt provider
func (o *OvirtProvider) Close() {
if o.ovirtClient != nil {
o.ovirtClient.Close()
}
}
// LoadVM fetch the source VM from ovirt and set it on the provider
func (o *OvirtProvider) LoadVM(sourceSpec v2vv1.VirtualMachineImportSourceSpec) error {
ovirtSourceSpec := sourceSpec.Ovirt
sourceVMID := ovirtSourceSpec.VM.ID
sourceVMName := ovirtSourceSpec.VM.Name
var sourceVMClusterName *string
var sourceVMClusterID *string
if ovirtSourceSpec.VM.Cluster != nil {
sourceVMClusterName = ovirtSourceSpec.VM.Cluster.Name
sourceVMClusterID = ovirtSourceSpec.VM.Cluster.ID
}
client, err := o.getClient()
if err != nil {
return err
}
vm, err := client.GetVM(sourceVMID, sourceVMName, sourceVMClusterName, sourceVMClusterID)
if err != nil {
return err
}
o.vm = vm.(*ovirtsdk.Vm)
return nil
}
// PrepareResourceMapping merges external resource mapping and resource mapping provided in the virtual machine import spec
func (o *OvirtProvider) PrepareResourceMapping(externalResourceMapping *v2vv1.ResourceMappingSpec, vmiSpec v2vv1.VirtualMachineImportSourceSpec) {
o.resourceMapping = mappings.MergeMappings(externalResourceMapping, vmiSpec.Ovirt.Mappings)
}
// ValidateDiskStatus validate current status of the disk in oVirt env:
func (o *OvirtProvider) ValidateDiskStatus(diskName string) (bool, error) {
// Refresh cached VM data:
err := o.LoadVM(o.instance.Spec.Source)
if err != nil {
return false, err
}
// Find the disk by ID and validate the status:
if diskAttachments, ok := o.vm.DiskAttachments(); ok {
for _, disk := range diskAttachments.Slice() {
if diskID, ok := disk.Id(); ok {
if strings.Contains(diskName, diskID) {
return o.validator.Validator.ValidateDiskStatus(*disk), nil
}
}
}
}
return false, nil
}
// Validate validates whether loaded previously VM and resource mapping is valid. The validation results are recorded in th VMI CR identified by vmiCrName and in case of a validation failure error is returned.
func (o *OvirtProvider) Validate() ([]v2vv1.VirtualMachineImportCondition, error) {
vm, err := o.getVM()
if err != nil {
return nil, err
}
if vm == nil {
return []v2vv1.VirtualMachineImportCondition{}, errors.New("VM has not been loaded")
}
vmiName := o.GetVmiNamespacedName()
return o.validator.Validate(vm, &vmiName, o.resourceMapping, o.templateFinder), nil
}
// StopVM stop the source VM on ovirt
func (o *OvirtProvider) StopVM(instance *v2vv1.VirtualMachineImport, rclient rclient.Client) error {
vm, err := o.getVM()
if err != nil {
return err
}
vmID, _ := vm.Id()
status, _ := vm.Status()
if status == ovirtsdk.VMSTATUS_DOWN {
return nil
}
client, err := o.getClient()
if err != nil {
return err
}
err = client.StopVM(vmID)
if err != nil {
return err
}
err = utils.AddFinalizer(instance, utils.RestoreVMStateFinalizer, rclient)
if err != nil {
return err
}
return nil
}
// FindTemplate attempts to find best match for a template based on the source VM
func (o *OvirtProvider) FindTemplate() (*templatev1.Template, error) {
vm, err := o.getVM()
if err != nil {
return nil, err
}
return o.templateFinder.FindTemplate(vm)
}
// ProcessTemplate uses openshift api to process template
func (o *OvirtProvider) ProcessTemplate(template *templatev1.Template, vmName *string, namespace string) (*kubevirtv1.VirtualMachine, error) {
vm, err := o.templateHandler.ProcessTemplate(template, vmName, namespace)
if err != nil {
return nil, err
}
sourceVM, err := o.getVM()
if err != nil {
return nil, err
}
labels, annotations, err := o.templateFinder.GetMetadata(template, sourceVM)
if err != nil {
return nil, err
}
utils.UpdateLabels(vm, labels)
utils.UpdateAnnotations(vm, annotations)
return vm, nil
}
// GetVmiNamespacedName return the namespaced name of the VM import object
func (o *OvirtProvider) GetVmiNamespacedName() types.NamespacedName {
return types.NamespacedName{Name: o.vmiObjectMeta.Name, Namespace: o.vmiObjectMeta.Namespace}
}
// CreateMapper create the mapper for ovirt provider
func (o *OvirtProvider) CreateMapper() (provider.Mapper, error) {
credentials, err := o.prepareDataVolumeCredentials()
if err != nil {
return nil, err
}
vm, err := o.getVM()
if err != nil {
return nil, err
}
return mapper.NewOvirtMapper(vm, o.resourceMapping, credentials, o.vmiObjectMeta.Namespace, o.osFinder), nil
}
// StartVM starts the source VM
func (o *OvirtProvider) StartVM() error {
vm, err := o.getVM()
if err != nil {
return err
}
if id, ok := vm.Id(); ok {
client, err := o.getClient()
if err != nil {
return err
}
err = client.StartVM(id)
if err != nil {
return err
}
}
return nil
}
// CleanUp removes transient resources created for import
func (o *OvirtProvider) CleanUp(failure bool, cr *v2vv1.VirtualMachineImport, client rclient.Client) error {
var errs []error
err := utils.RemoveFinalizer(cr, utils.RestoreVMStateFinalizer, client)
if err != nil {
errs = append(errs, err)
}
vmiName := o.GetVmiNamespacedName()
err = o.secretsManager.DeleteFor(vmiName)
if err != nil {
errs = append(errs, err)
}
err = o.configMapsManager.DeleteFor(vmiName)
if err != nil {
errs = append(errs, err)
}
if failure {
err = o.datavolumesManager.DeleteFor(vmiName)
if err != nil {
errs = append(errs, err)
}
err = o.virtualMachineManager.DeleteFor(vmiName)
// ignore not found errors, since the VM being deleted
// might be the cause of the failed import.
if err != nil && !k8serrors.IsNotFound(err) {
errs = append(errs, err)
}
}
if len(errs) > 0 {
return utils.FoldCleanUpErrors(errs, vmiName)
}
return nil
}
// NeedsGuestConversion indicates whether a VM from this provider must undergo guest conversion.
func (o *OvirtProvider) NeedsGuestConversion() bool {
return false
}
// GetGuestConversionJob is not implemented.
func (o *OvirtProvider) GetGuestConversionPod() (*corev1.Pod, error) {
return nil, nil
}
// LaunchGuestConversionJob is not implemented.
func (o *OvirtProvider) LaunchGuestConversionPod(_ *kubevirtv1.VirtualMachine, _ map[string]cdiv1.DataVolume) (*corev1.Pod, error) {
return nil, nil
}
// SupportsWarmMigration returns whether this provider supports warm migrations.
func (o *OvirtProvider) SupportsWarmMigration() bool {
return false
}
// CreateVMSnapshot is not implemented.
func (o *OvirtProvider) CreateVMSnapshot() (string, error) {
return "", nil
}
// RemoveVMSnapshot is not implemented.
func (o *OvirtProvider) RemoveVMSnapshot(_ string, _ bool) error {
return nil
}
func (o *OvirtProvider) prepareDataVolumeCredentials() (mapper.DataVolumeCredentials, error) {
keyAccess := o.ovirtSecretDataMap["username"]
keySecret := o.ovirtSecretDataMap["password"]
secret, err := o.ensureSecretIsPresent(keyAccess, keySecret)
if err != nil {
return mapper.DataVolumeCredentials{}, err
}
caCert := o.ovirtSecretDataMap["caCert"]
configMap, err := o.ensureConfigMapIsPresent(caCert)
if err != nil {
return mapper.DataVolumeCredentials{}, err
}
return mapper.DataVolumeCredentials{
URL: o.ovirtSecretDataMap["apiUrl"],
CACertificate: caCert,
KeyAccess: keyAccess,
KeySecret: keySecret,
ConfigMapName: configMap.Name,
SecretName: secret.Name,
}, nil
}
func (o *OvirtProvider) ensureSecretIsPresent(keyAccess string, keySecret string) (*corev1.Secret, error) {
secret, err := o.secretsManager.FindFor(o.GetVmiNamespacedName())
if err != nil {
return nil, err
}
if secret == nil {
secret, err = o.createSecret(keyAccess, keySecret)
if err != nil {
return nil, err
}
}
return secret, nil
}
func (o *OvirtProvider) createSecret(keyAccess string, keySecret string) (*corev1.Secret, error) {
newSecret := corev1.Secret{
Data: map[string][]byte{
keyAccessKey: []byte(keyAccess),
keySecretKey: []byte(keySecret),
},
}
newSecret.OwnerReferences = []metav1.OwnerReference{
ownerreferences.NewVMImportOwnerReference(o.vmiTypeMeta, o.vmiObjectMeta),
}
err := o.secretsManager.CreateFor(&newSecret, o.GetVmiNamespacedName())
if err != nil {
return nil, err
}
return &newSecret, nil
}
func (o *OvirtProvider) ensureConfigMapIsPresent(caCert string) (*corev1.ConfigMap, error) {
configMap, err := o.configMapsManager.FindFor(o.GetVmiNamespacedName())
if err != nil {
return nil, err
}
if configMap == nil {
configMap, err = o.createConfigMap(caCert)
if err != nil {
return nil, err
}
}
return configMap, nil
}
func (o *OvirtProvider) createConfigMap(caCert string) (*corev1.ConfigMap, error) {
newConfigMap := corev1.ConfigMap{
Data: map[string]string{
"ca.pem": caCert,
},
}
newConfigMap.OwnerReferences = []metav1.OwnerReference{
ownerreferences.NewVMImportOwnerReference(o.vmiTypeMeta, o.vmiObjectMeta),
}
err := o.configMapsManager.CreateFor(&newConfigMap, o.GetVmiNamespacedName())
if err != nil {
return nil, err
}
return &newConfigMap, nil
}