add tests and fix bug when char device pass the test as block device

- add test
- fix bug when a character device set in a volume as a block device
  is seen as block device in _pkg/specgen/generate/kube/volume.go_.
  At this stage the type does not matter much because the devices are
recreated at lower layer but the bug allowed a CharDevice volume to be
passed to lower layer as a BlockDevice.

Signed-off-by: Cosmin Tupangiu <cosmin@redhat.com>

2 files changed, 5 insertions, 5 deletions

diff --git a/pkg/specgen/generate/kube/kube.go b/pkg/specgen/generate/kube/kube.go
index 795ff876e..f37d79798 100644
--- a/pkg/specgen/generate/kube/kube.go
+++ b/pkg/specgen/generate/kube/kube.go
@@ -382,7 +382,7 @@ func ToSpecGen(ctx context.Context, opts *CtrSpecGenOptions) (*specgen.SpecGener
 			}
 			s.Volumes = append(s.Volumes, &cmVolume)
 		case KubeVolumeTypeCharDevice:
-			// We are setting the path as hostPath:mountPath to comply with DeviceFromPath (https://github.com/containers/podman/blob/eb26fa45f1326191dea27f2afabf82cb8b934140/pkg/specgen/generate/config_linux.go#L72)
+			// We are setting the path as hostPath:mountPath to comply with pkg/specgen/generate.DeviceFromPath.
 			// The type is here just to improve readability as it is not taken into account when the actual device is created.
 			device := spec.LinuxDevice{
 				Path: fmt.Sprintf("%s:%s", volumeSource.Source, volume.MountPath),
@@ -390,7 +390,7 @@ func ToSpecGen(ctx context.Context, opts *CtrSpecGenOptions) (*specgen.SpecGener
 			}
 			s.Devices = append(s.Devices, device)
 		case KubeVolumeTypeBlockDevice:
-			// We are setting the path as hostPath:mountPath to comply with DeviceFromPath (https://github.com/containers/podman/blob/eb26fa45f1326191dea27f2afabf82cb8b934140/pkg/specgen/generate/config_linux.go#L72)
+			// We are setting the path as hostPath:mountPath to comply with pkg/specgen/generate.DeviceFromPath.
 			// The type is here just to improve readability as it is not taken into account when the actual device is created.
 			device := spec.LinuxDevice{
 				Path: fmt.Sprintf("%s:%s", volumeSource.Source, volume.MountPath),
diff --git a/pkg/specgen/generate/kube/volume.go b/pkg/specgen/generate/kube/volume.go
index 2fc63fc7c..1d6d49b9d 100644
--- a/pkg/specgen/generate/kube/volume.go
+++ b/pkg/specgen/generate/kube/volume.go
@@ -85,8 +85,8 @@ func VolumeFromHostPath(hostPath *v1.HostPathVolumeSource) (*KubeVolume, error)
 			if err != nil {
 				return nil, errors.Wrap(err, "error checking HostPathBlockDevice")
 			}
-			if dev.Mode()&os.ModeDevice != os.ModeDevice {
-				return nil, errors.Errorf("checking HosPathDevice: path %s is not a block device", hostPath.Path)
+			if dev.Mode()&os.ModeCharDevice == os.ModeCharDevice {
+				return nil, errors.Errorf("checking HostPathDevice: path %s is not a block device", hostPath.Path)
 			}
 			return &KubeVolume{
 				Type:   KubeVolumeTypeBlockDevice,
@@ -98,7 +98,7 @@ func VolumeFromHostPath(hostPath *v1.HostPathVolumeSource) (*KubeVolume, error)
 				return nil, errors.Wrap(err, "error checking HostPathCharDevice")
 			}
 			if dev.Mode()&os.ModeCharDevice != os.ModeCharDevice {
-				return nil, errors.Errorf("checking HosPathCharDevice: path %s is not a character device", hostPath.Path)
+				return nil, errors.Errorf("checking HostPathCharDevice: path %s is not a character device", hostPath.Path)
 			}
 			return &KubeVolume{
 				Type:   KubeVolumeTypeCharDevice,