diff options
-rw-r--r-- | pkg/specgen/generate/kube/kube.go | 4 | ||||
-rw-r--r-- | pkg/specgen/generate/kube/volume.go | 6 | ||||
-rw-r--r-- | test/e2e/play_kube_test.go | 127 |
3 files changed, 132 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, diff --git a/test/e2e/play_kube_test.go b/test/e2e/play_kube_test.go index 216c3357c..161813194 100644 --- a/test/e2e/play_kube_test.go +++ b/test/e2e/play_kube_test.go @@ -3685,4 +3685,131 @@ 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("podman play kube expose block device inside container", func() { + SkipIfRootless("It needs root access to create devices") + Expect(os.MkdirAll("/dev/foodevdir", os.ModePerm)).To(BeNil()) + defer os.RemoveAll("/dev/foodevdir") + + devicePath := "/dev/foodevdir/blockdevice" + 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("podman play kube expose character device inside container", func() { + SkipIfRootless("It needs root access to create devices") + Expect(os.MkdirAll("/dev/foodevdir", os.ModePerm)).To(BeNil()) + defer os.RemoveAll("/dev/foodevdir") + + devicePath := "/dev/foodevdir/chardevice" + 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("podman play kube reports error when we try to expose char device as block device", func() { + SkipIfRootless("It needs root access to create devices") + Expect(os.MkdirAll("/dev/foodevdir", os.ModePerm)).To(BeNil()) + defer os.RemoveAll("/dev/foodevdir") + + devicePath := "/dev/foodevdir/chardevice" + 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("podman play kube reports error when we try to expose block device as char device", func() { + SkipIfRootless("It needs root access to create devices") + Expect(os.MkdirAll("/dev/foodevdir", os.ModePerm)).To(BeNil()) + defer os.RemoveAll("/dev/foodevdir") + + devicePath := "/dev/foodevdir/blockdevice" + 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)) + }) + }) |