Fix incorrect parsing of create/run --volumes-from

Add a bunch of tests to ensure that --volumes-from
works as expected.

Also align the podman create and run man page.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
This commit is contained in:
Paul Holzinger
2020-09-20 19:43:19 +02:00
parent 8529435166
commit 44d7270a34
5 changed files with 84 additions and 19 deletions

View File

@ -733,23 +733,85 @@ USER mail`
err := os.MkdirAll(vol, 0755)
Expect(err).To(BeNil())
volFile := filepath.Join(vol, "test.txt")
filename := "test.txt"
volFile := filepath.Join(vol, filename)
data := "Testing --volumes-from!!!"
err = ioutil.WriteFile(volFile, []byte(data), 0755)
Expect(err).To(BeNil())
mountpoint := "/myvol/"
session := podmanTest.Podman([]string{"create", "--volume", vol + ":/myvol", redis, "sh"})
session := podmanTest.Podman([]string{"create", "--volume", vol + ":" + mountpoint, ALPINE, "cat", mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
ctrID := session.OutputToString()
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID, ALPINE, "echo", "'testing read-write!' >> myvol/test.txt"})
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID, ALPINE, "cat", mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
Expect(session.OutputToString()).To(Equal(data))
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID, ALPINE, "sh", "-c", "echo test >> " + mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID + ":z", ALPINE, "ls"})
session = podmanTest.Podman([]string{"start", "--attach", ctrID})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
Expect(session.OutputToString()).To(Equal(data + "test"))
})
It("podman run --volumes-from flag options", func() {
vol := filepath.Join(podmanTest.TempDir, "vol-test")
err := os.MkdirAll(vol, 0755)
Expect(err).To(BeNil())
filename := "test.txt"
volFile := filepath.Join(vol, filename)
data := "Testing --volumes-from!!!"
err = ioutil.WriteFile(volFile, []byte(data), 0755)
Expect(err).To(BeNil())
mountpoint := "/myvol/"
session := podmanTest.Podman([]string{"create", "--volume", vol + ":" + mountpoint, ALPINE, "cat", mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
ctrID := session.OutputToString()
// check that the read only option works
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID + ":ro", ALPINE, "touch", mountpoint + "abc.txt"})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(1))
Expect(session.ErrorToString()).To(ContainSubstring("Read-only file system"))
// check that both z and ro options work
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID + ":ro,z", ALPINE, "cat", mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
Expect(session.OutputToString()).To(Equal(data))
// check that multiple ro/rw are not working
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID + ":ro,rw", ALPINE, "cat", mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(125))
Expect(session.ErrorToString()).To(ContainSubstring("cannot set ro or rw options more than once"))
// check that multiple z options are not working
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID + ":z,z,ro", ALPINE, "cat", mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(125))
Expect(session.ErrorToString()).To(ContainSubstring("cannot set :z more than once in mount options"))
// create new read only volume
session = podmanTest.Podman([]string{"create", "--volume", vol + ":" + mountpoint + ":ro", ALPINE, "cat", mountpoint + filename})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
ctrID = session.OutputToString()
// check if the original volume was mounted as read only that --volumes-from also mount it as read only
session = podmanTest.Podman([]string{"run", "--volumes-from", ctrID, ALPINE, "touch", mountpoint + "abc.txt"})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(1))
Expect(session.ErrorToString()).To(ContainSubstring("Read-only file system"))
})
It("podman run --volumes-from flag with built-in volumes", func() {