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Fix GetVolumeName for image volumeplugin and add unit tests for CanSupport

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This commit is contained in:
carlory 2024-08-19 16:08:53 +08:00
parent de521a9191
commit d9e278711c
2 changed files with 66 additions and 5 deletions
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25
pkg/volume/image/image.go
View File

@ -17,6 +17,8 @@ limitations under the License.
package image
import (
"fmt"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/kubernetes/pkg/volume"
@ -28,7 +30,6 @@ import (
// feature "ImageVolume"
// See: https://kep.k8s.io/4639
type imagePlugin struct {
spec *volume.Spec
volume.MetricsNil
}
@ -44,9 +45,16 @@ func ProbeVolumePlugins() []volume.VolumePlugin {
return []volume.VolumePlugin{p}
}
func (o *imagePlugin) Init(volume.VolumeHost) error { return nil }
func (o *imagePlugin) GetPluginName() string { return pluginName }
func (o *imagePlugin) GetVolumeName(spec *volume.Spec) (string, error) { return o.spec.Name(), nil }
func (o *imagePlugin) Init(volume.VolumeHost) error { return nil }
func (o *imagePlugin) GetPluginName() string { return pluginName }
func (o *imagePlugin) GetVolumeName(spec *volume.Spec) (string, error) {
volumeSource := getVolumeSource(spec)
if volumeSource == nil {
return "", fmt.Errorf("the volumeSpec does not reference an Image volume type")
}
return volumeSource.Reference, nil
}
func (o *imagePlugin) CanSupport(spec *volume.Spec) bool {
return spec != nil && spec.Volume != nil && spec.Volume.Image != nil
@ -61,7 +69,7 @@ func (o *imagePlugin) NewUnmounter(name string, podUID types.UID) (volume.Unmoun
}
func (o *imagePlugin) ConstructVolumeSpec(volumeName, mountPath string) (volume.ReconstructedVolume, error) {
return volume.ReconstructedVolume{Spec: o.spec}, nil
return volume.ReconstructedVolume{}, nil
}
func (o *imagePlugin) GetAttributes() volume.Attributes {
@ -81,3 +89,10 @@ func (o *imagePlugin) SupportsMountOption() bool
func (o *imagePlugin) SupportsSELinuxContextMount(spec *volume.Spec) (bool, error) { return false, nil }
func (o *imagePlugin) TearDown() error { return nil }
func (o *imagePlugin) TearDownAt(string) error { return nil }
func getVolumeSource(spec *volume.Spec) *v1.ImageVolumeSource {
if spec == nil || spec.Volume == nil {
return nil
}
return spec.Volume.Image
}

46
pkg/volume/image/image_test.go Normal file
View File

@ -0,0 +1,46 @@
/*
Copyright 2024 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package image
import (
"testing"
v1 "k8s.io/api/core/v1"
"k8s.io/kubernetes/pkg/volume"
)
func TestCanSupport(t *testing.T) {
pluginMgr := volume.VolumePluginMgr{}
err := pluginMgr.InitPlugins(ProbeVolumePlugins(), nil /* prober */, nil /* host */)
if err != nil {
t.Fatalf("Failed to init plugins: %v", err)
}
plugin, err := pluginMgr.FindPluginByName(pluginName)
if err != nil {
t.Fatal("Can't find the plugin by name")
}
if plugin.GetPluginName() != pluginName {
t.Errorf("Wrong name: %s", plugin.GetPluginName())
}
if !plugin.CanSupport(&volume.Spec{Volume: &v1.Volume{VolumeSource: v1.VolumeSource{Image: &v1.ImageVolumeSource{Reference: ""}}}}) {
t.Errorf("Expected true")
}
if plugin.CanSupport(&volume.Spec{}) {
t.Errorf("Expected false")
}
}