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feat(cdi): remove init container with root privileges #572

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Original file line number Diff line number Diff line change
@@ -1,25 +1,8 @@
diff --git a/pkg/controller/upload-controller.go b/pkg/controller/upload-controller.go
index f251cae5d..99f5494dc 100644
index f251cae5d..a925aa2c1 100644
--- a/pkg/controller/upload-controller.go
+++ b/pkg/controller/upload-controller.go
@@ -45,6 +45,8 @@ import (
"sigs.k8s.io/controller-runtime/pkg/source"

cdiv1 "kubevirt.io/containerized-data-importer-api/pkg/apis/core/v1beta1"
+ sdkapi "kubevirt.io/controller-lifecycle-operator-sdk/api"
+
"kubevirt.io/containerized-data-importer/pkg/common"
cc "kubevirt.io/containerized-data-importer/pkg/controller/common"
featuregates "kubevirt.io/containerized-data-importer/pkg/feature-gates"
@@ -54,7 +56,6 @@ import (
"kubevirt.io/containerized-data-importer/pkg/util/cert/generator"
"kubevirt.io/containerized-data-importer/pkg/util/naming"
cryptowatch "kubevirt.io/containerized-data-importer/pkg/util/tls-crypto-watch"
- sdkapi "kubevirt.io/controller-lifecycle-operator-sdk/api"
)

const (
@@ -430,7 +431,7 @@ func (r *UploadReconciler) createUploadPodForPvc(pvc *corev1.PersistentVolumeCla
@@ -430,7 +430,7 @@ func (r *UploadReconciler) createUploadPodForPvc(pvc *corev1.PersistentVolumeCla
args := UploadPodArgs{
Name: podName,
PVC: pvc,
Expand All @@ -28,7 +11,7 @@ index f251cae5d..99f5494dc 100644
ClientName: clientName,
FilesystemOverhead: string(fsOverhead),
ServerCert: serverCert,
@@ -723,11 +724,7 @@ func addUploadControllerWatches(mgr manager.Manager, uploadController controller
@@ -723,11 +723,7 @@ func addUploadControllerWatches(mgr manager.Manager, uploadController controller
return nil
}

Expand All @@ -41,51 +24,8 @@ index f251cae5d..99f5494dc 100644
return naming.GetResourceName(pvc.Name, common.ScratchNameSuffix)
}

@@ -801,6 +798,8 @@ func (r *UploadReconciler) makeUploadPodSpec(args UploadPodArgs, resourceRequire
cc.SetNodeNameIfPopulator(args.PVC, &pod.Spec)
cc.SetRestrictedSecurityContext(&pod.Spec)

+ pod.Spec.InitContainers = r.makeUploadPodInitContainers(args)
+
return pod
}

@@ -904,6 +903,33 @@ func (r *UploadReconciler) makeUploadPodContainers(args UploadPodArgs, resourceR
return containers
}

+func (r *UploadReconciler) makeUploadPodInitContainers(args UploadPodArgs) []corev1.Container {
+ if args.PVC == nil || len(args.PVC.Spec.AccessModes) == 0 || args.PVC.Spec.AccessModes[0] != corev1.ReadWriteMany {
+ return nil
+ }
+
+ if cc.GetVolumeMode(args.PVC) == corev1.PersistentVolumeBlock {
+ return nil
+ }
+
+ containers := []corev1.Container{
+ {
+ Name: "chmod-" + common.UploadServerPodname,
+ Image: r.image,
+ ImagePullPolicy: corev1.PullPolicy(r.pullPolicy),
+ Command: []string{"sh", "-c", "chmod 775 " + common.UploadServerDataDir},
+ VolumeMounts: []corev1.VolumeMount{
+ {
+ Name: cc.DataVolName,
+ MountPath: common.UploadServerDataDir,
+ },
+ },
+ },
+ }
+
+ return containers
+}
+
func (r *UploadReconciler) makeUploadPodVolumes(args UploadPodArgs) []corev1.Volume {
volumes := []corev1.Volume{
{
diff --git a/pkg/uploadserver/uploadserver.go b/pkg/uploadserver/uploadserver.go
index aa9e5ab68..845981a1a 100644
index aa9e5ab68..02c4cb467 100644
--- a/pkg/uploadserver/uploadserver.go
+++ b/pkg/uploadserver/uploadserver.go
@@ -29,6 +29,7 @@ import (
Expand All @@ -96,7 +36,7 @@ index aa9e5ab68..845981a1a 100644
"os"
"strings"
"sync"
@@ -36,11 +37,14 @@ import (
@@ -36,11 +37,13 @@ import (

"github.com/golang/snappy"
"github.com/pkg/errors"
Expand All @@ -105,13 +45,12 @@ index aa9e5ab68..845981a1a 100644
"k8s.io/klog/v2"

cdiv1 "kubevirt.io/containerized-data-importer-api/pkg/apis/core/v1beta1"
+
"kubevirt.io/containerized-data-importer/pkg/common"
+ "kubevirt.io/containerized-data-importer/pkg/image"
"kubevirt.io/containerized-data-importer/pkg/importer"
"kubevirt.io/containerized-data-importer/pkg/util"
cryptowatch "kubevirt.io/containerized-data-importer/pkg/util/tls-crypto-watch"
@@ -491,7 +495,7 @@ func newAsyncUploadStreamProcessor(stream io.ReadCloser, dest, imageSize string,
@@ -491,7 +494,7 @@ func newAsyncUploadStreamProcessor(stream io.ReadCloser, dest, imageSize string,
func newUploadStreamProcessor(stream io.ReadCloser, dest, imageSize string, filesystemOverhead float64, preallocation bool, sourceContentType string, dvContentType cdiv1.DataVolumeContentType) (bool, error) {
stream = newContentReader(stream, sourceContentType)
if isCloneTarget(sourceContentType) {
Expand All @@ -120,7 +59,7 @@ index aa9e5ab68..845981a1a 100644
}

// Clone block device to block device or file system
@@ -501,7 +505,7 @@ func newUploadStreamProcessor(stream io.ReadCloser, dest, imageSize string, file
@@ -501,7 +504,7 @@ func newUploadStreamProcessor(stream io.ReadCloser, dest, imageSize string, file
return processor.PreallocationApplied(), err
}

Expand All @@ -129,7 +68,7 @@ index aa9e5ab68..845981a1a 100644
if contentType == common.FilesystemCloneContentType {
if dest != common.WriteBlockPath {
return fileToFileCloneProcessor(stream)
@@ -516,16 +520,79 @@ func cloneProcessor(stream io.ReadCloser, contentType, dest string, preallocate
@@ -516,16 +519,79 @@ func cloneProcessor(stream io.ReadCloser, contentType, dest string, preallocate
}

defer stream.Close()
Expand All @@ -153,22 +92,22 @@ index aa9e5ab68..845981a1a 100644
+ }
+
+ err = importer.CleanAll(dest)
if err != nil {
- return false, err
+ if err != nil {
+ return false, fmt.Errorf("failed to clean all: %w", err)
}

- klog.Infof("Read %d bytes, wrote %d bytes to %s", bytesRead, bytesWrittenn, dest)
+ }
+
+ format, err := util.GetFormat(dest)
+ if err != nil {
+ return false, fmt.Errorf("failed to get format: %w", err)
+ }
+
+ err = image.NewQEMUOperations().ConvertToFormatStream(parsedScratchPath, format, dest, false)
+ if err != nil {
if err != nil {
- return false, err
+ return false, fmt.Errorf("failed to convert: %w", err)
+ }
+
}

- klog.Infof("Read %d bytes, wrote %d bytes to %s", bytesRead, bytesWrittenn, dest)
+ klog.Infof("Read %d bytes, wrote %d bytes to %s", bytesRead, bytesWritten, dest)

return false, nil
Expand Down
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