From 0c9b0e2aa7dd57efe780754dafd9bdadc086c51f Mon Sep 17 00:00:00 2001 From: Cosmin Tupangiu Date: Tue, 17 May 2022 10:47:45 +0200 Subject: expose block and char devices with play kube [NO NEW TESTS NEEDED] Signed-off-by: Cosmin Tupangiu --- pkg/specgen/generate/kube/kube.go | 16 ++++++++++++++++ pkg/specgen/generate/kube/volume.go | 31 ++++++++++++++++++++++++++++--- 2 files changed, 44 insertions(+), 3 deletions(-) (limited to 'pkg') diff --git a/pkg/specgen/generate/kube/kube.go b/pkg/specgen/generate/kube/kube.go index e4c149abf..795ff876e 100644 --- a/pkg/specgen/generate/kube/kube.go +++ b/pkg/specgen/generate/kube/kube.go @@ -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") } diff --git a/pkg/specgen/generate/kube/volume.go b/pkg/specgen/generate/kube/volume.go index 27881e77a..2fc63fc7c 100644 --- a/pkg/specgen/generate/kube/volume.go +++ b/pkg/specgen/generate/kube/volume.go @@ -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: -- cgit v1.2.3-54-g00ecf