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datavolume.go
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datavolume.go
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package utils
import (
"fmt"
"time"
k8sv1 "k8s.io/api/core/v1"
apierrs "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
cdiv1 "kubevirt.io/containerized-data-importer/pkg/apis/datavolumecontroller/v1alpha1"
cdiclientset "kubevirt.io/containerized-data-importer/pkg/client/clientset/versioned"
)
const (
dataVolumePollInterval = 2 * time.Second
DataVolumeCreateTime = 30 * time.Second
DataVolumeDeleteTime = 30 * time.Second
DataVolumePhaseTime = 30 * time.Second
)
const (
TinyCoreIsoURL = "http://cdi-file-host.kube-system/tinyCore.iso"
)
func CreateDataVolumeFromDefinition(clientSet *cdiclientset.Clientset, namespace string, def *cdiv1.DataVolume) (*cdiv1.DataVolume, error) {
var dataVolume *cdiv1.DataVolume
err := wait.PollImmediate(dataVolumePollInterval, DataVolumeCreateTime, func() (bool, error) {
var err error
dataVolume, err = clientSet.CdiV1alpha1().DataVolumes(namespace).Create(def)
if err == nil || apierrs.IsAlreadyExists(err) {
return true, nil
}
return false, err
})
if err != nil {
return nil, err
}
return dataVolume, nil
}
// Delete the passed in DataVolume
func DeleteDataVolume(clientSet *cdiclientset.Clientset, namespace string, dataVolume *cdiv1.DataVolume) error {
return wait.PollImmediate(dataVolumePollInterval, DataVolumeDeleteTime, func() (bool, error) {
err := clientSet.CdiV1alpha1().DataVolumes(namespace).Delete(dataVolume.GetName(), nil)
if err == nil || apierrs.IsNotFound(err) {
return true, nil
}
return false, err
})
}
func NewDataVolumeWithPVCImport(dataVolumeName string, size string, targetPvc *k8sv1.PersistentVolumeClaim) *cdiv1.DataVolume {
return &cdiv1.DataVolume{
ObjectMeta: metav1.ObjectMeta{
Name: dataVolumeName,
},
Spec: cdiv1.DataVolumeSpec{
Source: cdiv1.DataVolumeSource{
PVC: &cdiv1.DataVolumeSourcePVC{
Name: targetPvc.Name,
Namespace: targetPvc.Namespace,
},
},
PVC: &k8sv1.PersistentVolumeClaimSpec{
AccessModes: []k8sv1.PersistentVolumeAccessMode{k8sv1.ReadWriteOnce},
Resources: k8sv1.ResourceRequirements{
Requests: k8sv1.ResourceList{
k8sv1.ResourceName(k8sv1.ResourceStorage): resource.MustParse(size),
},
},
},
},
}
}
func NewDataVolumeWithHttpImport(dataVolumeName string, size string, httpUrl string) *cdiv1.DataVolume {
return &cdiv1.DataVolume{
ObjectMeta: metav1.ObjectMeta{
Name: dataVolumeName,
},
Spec: cdiv1.DataVolumeSpec{
Source: cdiv1.DataVolumeSource{
HTTP: &cdiv1.DataVolumeSourceHTTP{
URL: httpUrl,
},
},
PVC: &k8sv1.PersistentVolumeClaimSpec{
AccessModes: []k8sv1.PersistentVolumeAccessMode{k8sv1.ReadWriteOnce},
Resources: k8sv1.ResourceRequirements{
Requests: k8sv1.ResourceList{
k8sv1.ResourceName(k8sv1.ResourceStorage): resource.MustParse(size),
},
},
},
},
}
}
// Wait for the DataVolume to be in a particular phase (Pending, Bound, or Lost)
func WaitForDataVolumePhase(clientSet *cdiclientset.Clientset, namespace string, phase cdiv1.DataVolumePhase, dataVolumeName string) error {
err := wait.PollImmediate(dataVolumePollInterval, DataVolumePhaseTime, func() (bool, error) {
dataVolume, err := clientSet.CdiV1alpha1().DataVolumes(namespace).Get(dataVolumeName, metav1.GetOptions{})
if err != nil || dataVolume.Status.Phase != phase {
return false, err
}
return true, nil
})
if err != nil {
return fmt.Errorf("DataVolume %s not in phase %s within %v", dataVolumeName, phase, DataVolumePhaseTime)
}
return nil
}