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Add podman play kube --no-hosts options

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This option will setup the containers to not modify their /etc/hosts
file and just use the one from the image.

Fixes: https://github.com/containers/podman/issues/9500

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
Daniel J Walsh
2021-09-22 17:08:21 -04:00
parent 285c9ec69b
commit 641f0ccc4e
11 changed files with 78 additions and 6 deletions
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43
test/e2e/play_kube_test.go
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@ -1137,6 +1137,49 @@ var _ = Describe("Podman play kube", func() {
Expect(infraContainerImage).To(Equal(config.DefaultInfraImage))
})
It("podman play kube --no-host", func() {
err := writeYaml(checkInfraImagePodYaml, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", "--no-hosts", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube).Should(Exit(0))
podInspect := podmanTest.Podman([]string{"pod", "inspect", "check-infra-image"})
podInspect.WaitWithDefaultTimeout()
Expect(podInspect).Should(Exit(0))
data := podInspect.InspectPodToJSON()
for _, ctr := range data.Containers {
if strings.HasSuffix(ctr.Name, "-infra") {
continue
}
exec := podmanTest.Podman([]string{"exec", ctr.ID, "cat", "/etc/hosts"})
exec.WaitWithDefaultTimeout()
Expect(exec).Should(Exit(0))
Expect(exec.OutputToString()).To(Not(ContainSubstring("check-infra-image")))
}
})
It("podman play kube test HostAliases with --no-hosts", func() {
pod := getPod(withHostAliases("192.168.1.2", []string{
"test1.podman.io",
"test2.podman.io",
}),
withHostAliases("192.168.1.3", []string{
"test3.podman.io",
"test4.podman.io",
}),
)
err := generateKubeYaml("pod", pod, kubeYaml)
Expect(err).To(BeNil())
kube := podmanTest.Podman([]string{"play", "kube", "--no-hosts", kubeYaml})
kube.WaitWithDefaultTimeout()
Expect(kube).Should(Exit(125))
Expect(kube.ErrorToString()).To(ContainSubstring("HostAliases in yaml file will not work with --no-hosts"))
})
It("podman play kube should use customized infra_image", func() {
conffile := filepath.Join(podmanTest.TempDir, "container.conf")