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-rw-r--r--pkg/specgen/generate/kube/kube.go16
-rw-r--r--pkg/specgen/generate/kube/volume.go31
-rw-r--r--test/e2e/play_kube_test.go147
3 files changed, 191 insertions, 3 deletions
diff --git a/pkg/specgen/generate/kube/kube.go b/pkg/specgen/generate/kube/kube.go
index e4c149abf..f37d79798 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 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),
+ Type: "c",
+ }
+ s.Devices = append(s.Devices, device)
+ case KubeVolumeTypeBlockDevice:
+ // 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),
+ 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..1d6d49b9d 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.ModeCharDevice == os.ModeCharDevice {
+ return nil, errors.Errorf("checking HostPathDevice: 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 HostPathCharDevice: 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:
diff --git a/test/e2e/play_kube_test.go b/test/e2e/play_kube_test.go
index 216c3357c..31044f68b 100644
--- a/test/e2e/play_kube_test.go
+++ b/test/e2e/play_kube_test.go
@@ -21,6 +21,7 @@ import (
"github.com/containers/podman/v4/pkg/util"
. "github.com/containers/podman/v4/test/utils"
"github.com/containers/storage/pkg/stringid"
+ "github.com/google/uuid"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/onsi/gomega/format"
@@ -3685,4 +3686,150 @@ ENV OPENJ9_JAVA_OPTIONS=%q
Expect(usernsInCtr).Should(Exit(0))
Expect(string(usernsInCtr.Out.Contents())).To(Not(Equal(string(initialUsernsConfig))))
})
+
+ // Check the block devices are exposed inside container
+ It("ddpodman play kube expose block device inside container", func() {
+ SkipIfRootless("It needs root access to create devices")
+
+ // randomize the folder name to avoid error when running tests with multiple nodes
+ uuid, err := uuid.NewUUID()
+ Expect(err).To(BeNil())
+ devFolder := fmt.Sprintf("/dev/foodev%x", uuid[:6])
+ Expect(os.MkdirAll(devFolder, os.ModePerm)).To(BeNil())
+ defer os.RemoveAll(devFolder)
+
+ devicePath := fmt.Sprintf("%s/blockdevice", devFolder)
+ mknod := SystemExec("mknod", []string{devicePath, "b", "7", "0"})
+ mknod.WaitWithDefaultTimeout()
+ Expect(mknod).Should(Exit(0))
+
+ blockVolume := getHostPathVolume("BlockDevice", devicePath)
+
+ pod := getPod(withVolume(blockVolume), withCtr(getCtr(withImage(registry), withCmd(nil), withArg(nil), withVolumeMount(devicePath, false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(0))
+
+ // Container should be in running state
+ inspect := podmanTest.Podman([]string{"inspect", "--format", "{{.State.Status}}", "testPod-" + defaultCtrName})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect).Should(Exit(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring("running"))
+
+ // Container should have a block device /dev/loop1
+ inspect = podmanTest.Podman([]string{"inspect", "--format", "{{.HostConfig.Devices}}", "testPod-" + defaultCtrName})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect).Should(Exit(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring(devicePath))
+ })
+
+ // Check the char devices are exposed inside container
+ It("ddpodman play kube expose character device inside container", func() {
+ SkipIfRootless("It needs root access to create devices")
+
+ // randomize the folder name to avoid error when running tests with multiple nodes
+ uuid, err := uuid.NewUUID()
+ Expect(err).To(BeNil())
+ devFolder := fmt.Sprintf("/dev/foodev%x", uuid[:6])
+ Expect(os.MkdirAll(devFolder, os.ModePerm)).To(BeNil())
+ defer os.RemoveAll(devFolder)
+
+ devicePath := fmt.Sprintf("%s/chardevice", devFolder)
+ mknod := SystemExec("mknod", []string{devicePath, "c", "3", "1"})
+ mknod.WaitWithDefaultTimeout()
+ Expect(mknod).Should(Exit(0))
+
+ charVolume := getHostPathVolume("CharDevice", devicePath)
+
+ pod := getPod(withVolume(charVolume), withCtr(getCtr(withImage(registry), withCmd(nil), withArg(nil), withVolumeMount(devicePath, false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(0))
+
+ // Container should be in running state
+ inspect := podmanTest.Podman([]string{"inspect", "--format", "{{.State.Status}}", "testPod-" + defaultCtrName})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect).Should(Exit(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring("running"))
+
+ // Container should have a block device /dev/loop1
+ inspect = podmanTest.Podman([]string{"inspect", "--format", "{{.HostConfig.Devices}}", "testPod-" + defaultCtrName})
+ inspect.WaitWithDefaultTimeout()
+ Expect(inspect).Should(Exit(0))
+ Expect(inspect.OutputToString()).To(ContainSubstring(devicePath))
+ })
+
+ It("podman play kube reports error when the device does not exists", func() {
+ SkipIfRootless("It needs root access to create devices")
+
+ devicePath := "/dev/foodevdir/baddevice"
+
+ blockVolume := getHostPathVolume("BlockDevice", devicePath)
+
+ pod := getPod(withVolume(blockVolume), withCtr(getCtr(withImage(registry), withCmd(nil), withArg(nil), withVolumeMount(devicePath, false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(125))
+ })
+
+ It("ddpodman play kube reports error when we try to expose char device as block device", func() {
+ SkipIfRootless("It needs root access to create devices")
+
+ // randomize the folder name to avoid error when running tests with multiple nodes
+ uuid, err := uuid.NewUUID()
+ Expect(err).To(BeNil())
+ devFolder := fmt.Sprintf("/dev/foodev%x", uuid[:6])
+ Expect(os.MkdirAll(devFolder, os.ModePerm)).To(BeNil())
+ defer os.RemoveAll(devFolder)
+
+ devicePath := fmt.Sprintf("%s/chardevice", devFolder)
+ mknod := SystemExec("mknod", []string{devicePath, "c", "3", "1"})
+ mknod.WaitWithDefaultTimeout()
+ Expect(mknod).Should(Exit(0))
+
+ charVolume := getHostPathVolume("BlockDevice", devicePath)
+
+ pod := getPod(withVolume(charVolume), withCtr(getCtr(withImage(registry), withCmd(nil), withArg(nil), withVolumeMount(devicePath, false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(125))
+ })
+
+ It("ddpodman play kube reports error when we try to expose block device as char device", func() {
+ SkipIfRootless("It needs root access to create devices")
+
+ // randomize the folder name to avoid error when running tests with multiple nodes
+ uuid, err := uuid.NewUUID()
+ Expect(err).To(BeNil())
+ devFolder := fmt.Sprintf("/dev/foodev%x", uuid[:6])
+ Expect(os.MkdirAll(devFolder, os.ModePerm)).To(BeNil())
+
+ devicePath := fmt.Sprintf("%s/blockdevice", devFolder)
+ mknod := SystemExec("mknod", []string{devicePath, "b", "7", "0"})
+ mknod.WaitWithDefaultTimeout()
+ Expect(mknod).Should(Exit(0))
+
+ charVolume := getHostPathVolume("CharDevice", devicePath)
+
+ pod := getPod(withVolume(charVolume), withCtr(getCtr(withImage(registry), withCmd(nil), withArg(nil), withVolumeMount(devicePath, false))))
+ err = generateKubeYaml("pod", pod, kubeYaml)
+ Expect(err).To(BeNil())
+
+ kube := podmanTest.Podman([]string{"play", "kube", kubeYaml})
+ kube.WaitWithDefaultTimeout()
+ Expect(kube).Should(Exit(125))
+ })
+
})
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-08 14:33:57 +0000