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expose block and char devices with play kube

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[NO NEW TESTS NEEDED]

Signed-off-by: Cosmin Tupangiu <cosmin@redhat.com>
This commit is contained in:
Cosmin Tupangiu
2022-05-17 10:47:45 +02:00
parent eb26fa45f1
commit 0c9b0e2aa7
2 changed files with 44 additions and 3 deletions
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16
pkg/specgen/generate/kube/kube.go
View File

@ -381,6 +381,22 @@ func ToSpecGen(ctx context.Context, opts *CtrSpecGenOptions) (*specgen.SpecGener
Options: options,
}
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)
// 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),
Type: "c",
}
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)
// 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),
Type: "b",
}
s.Devices = append(s.Devices, device)
default:
return nil, errors.Errorf("Unsupported volume source type")
}

31
pkg/specgen/generate/kube/volume.go
View File

@ -22,8 +22,10 @@ type KubeVolumeType int
const (
KubeVolumeTypeBindMount KubeVolumeType = iota
KubeVolumeTypeNamed KubeVolumeType = iota
KubeVolumeTypeConfigMap KubeVolumeType = iota
KubeVolumeTypeNamed
KubeVolumeTypeConfigMap
KubeVolumeTypeBlockDevice
KubeVolumeTypeCharDevice
)
//nolint:revive
@ -78,7 +80,30 @@ func VolumeFromHostPath(hostPath *v1.HostPathVolumeSource) (*KubeVolume, error)
if st.Mode()&os.ModeSocket != os.ModeSocket {
return nil, errors.Errorf("checking HostPathSocket: path %s is not a socket", hostPath.Path)
}
case v1.HostPathBlockDev:
dev, err := os.Stat(hostPath.Path)
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)
}
return &KubeVolume{
Type: KubeVolumeTypeBlockDevice,
Source: hostPath.Path,
}, nil
case v1.HostPathCharDev:
dev, err := os.Stat(hostPath.Path)
if err != nil {
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 &KubeVolume{
Type: KubeVolumeTypeCharDevice,
Source: hostPath.Path,
}, nil
case v1.HostPathDirectory:
case v1.HostPathFile:
case v1.HostPathUnset: