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Add podman image mount

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There are many use cases where you want to just mount an image
without creating a container on it. For example you might want
to just examine the content in an image after you pull it for
security analysys.  Or you might want to just use the executables
on the image without running it in a container.

The image is mounted readonly since we do not want people changing
images.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
Daniel J Walsh
2020-07-28 10:25:14 -04:00
parent 288ebec6e7
commit 6979d140f1
16 changed files with 789 additions and 22 deletions
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139
test/e2e/mount_test.go
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@ -282,4 +282,143 @@ var _ = Describe("Podman mount", func() {
umount.WaitWithDefaultTimeout()
Expect(umount.ExitCode()).To(Equal(0))
})
It("podman image mount", func() {
setup := podmanTest.PodmanNoCache([]string{"pull", ALPINE})
setup.WaitWithDefaultTimeout()
Expect(setup.ExitCode()).To(Equal(0))
images := podmanTest.PodmanNoCache([]string{"images"})
images.WaitWithDefaultTimeout()
Expect(images.ExitCode()).To(Equal(0))
mount := podmanTest.PodmanNoCache([]string{"image", "mount", ALPINE})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
umount := podmanTest.PodmanNoCache([]string{"image", "umount", ALPINE})
umount.WaitWithDefaultTimeout()
Expect(umount.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(Equal(""))
// Mount multiple times
mount = podmanTest.PodmanNoCache([]string{"image", "mount", ALPINE})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount", ALPINE})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
// Unmount once
mount = podmanTest.PodmanNoCache([]string{"image", "mount", ALPINE})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(ContainSubstring(ALPINE))
mount = podmanTest.PodmanNoCache([]string{"image", "umount", "--all"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
})
It("podman mount with json format", func() {
setup := podmanTest.PodmanNoCache([]string{"pull", fedoraMinimal})
setup.WaitWithDefaultTimeout()
Expect(setup.ExitCode()).To(Equal(0))
mount := podmanTest.PodmanNoCache([]string{"image", "mount", fedoraMinimal})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
j := podmanTest.PodmanNoCache([]string{"image", "mount", "--format=json"})
j.WaitWithDefaultTimeout()
Expect(j.ExitCode()).To(Equal(0))
Expect(j.IsJSONOutputValid()).To(BeTrue())
umount := podmanTest.PodmanNoCache([]string{"image", "umount", fedoraMinimal})
umount.WaitWithDefaultTimeout()
Expect(umount.ExitCode()).To(Equal(0))
})
It("podman mount many", func() {
setup := podmanTest.PodmanNoCache([]string{"pull", fedoraMinimal})
setup.WaitWithDefaultTimeout()
Expect(setup.ExitCode()).To(Equal(0))
setup = podmanTest.PodmanNoCache([]string{"pull", ALPINE})
setup.WaitWithDefaultTimeout()
Expect(setup.ExitCode()).To(Equal(0))
setup = podmanTest.PodmanNoCache([]string{"pull", "busybox"})
setup.WaitWithDefaultTimeout()
Expect(setup.ExitCode()).To(Equal(0))
mount1 := podmanTest.PodmanNoCache([]string{"image", "mount", fedoraMinimal, ALPINE, "busybox"})
mount1.WaitWithDefaultTimeout()
Expect(mount1.ExitCode()).To(Equal(0))
umount := podmanTest.PodmanNoCache([]string{"image", "umount", fedoraMinimal, ALPINE})
umount.WaitWithDefaultTimeout()
Expect(umount.ExitCode()).To(Equal(0))
mount := podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(ContainSubstring("busybox"))
mount1 = podmanTest.PodmanNoCache([]string{"image", "unmount", "busybox"})
mount1.WaitWithDefaultTimeout()
Expect(mount1.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(Equal(""))
mount1 = podmanTest.PodmanNoCache([]string{"image", "mount", fedoraMinimal, ALPINE, "busybox"})
mount1.WaitWithDefaultTimeout()
Expect(mount1.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(ContainSubstring(fedoraMinimal))
Expect(mount.OutputToString()).To(ContainSubstring(ALPINE))
umount = podmanTest.PodmanNoCache([]string{"image", "umount", "--all"})
umount.WaitWithDefaultTimeout()
Expect(umount.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(Equal(""))
mount1 = podmanTest.PodmanNoCache([]string{"image", "mount", "--all"})
mount1.WaitWithDefaultTimeout()
Expect(mount1.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(ContainSubstring(fedoraMinimal))
Expect(mount.OutputToString()).To(ContainSubstring(ALPINE))
umount = podmanTest.PodmanNoCache([]string{"image", "umount", "--all"})
umount.WaitWithDefaultTimeout()
Expect(umount.ExitCode()).To(Equal(0))
mount = podmanTest.PodmanNoCache([]string{"image", "mount"})
mount.WaitWithDefaultTimeout()
Expect(mount.ExitCode()).To(Equal(0))
Expect(mount.OutputToString()).To(Equal(""))
})
})