From d10bc9f045ad7bc52d03bbf9462b3f94e693ccd1 Mon Sep 17 00:00:00 2001 From: Paul Holzinger Date: Thu, 20 Aug 2020 11:07:36 +0200 Subject: [PATCH] fix pod creation with "new:" syntax followup + allow hostname Fixes: 4c75fe3f70ed ("fix pod creation with "new:" syntax") Commit 4c75fe3f70ed passes all net options to the pod but forgot to unset the options for the container creation. This leads to erros when using flags like `--ip` since we tried setting the ip on the pod and container which obviously fails. I didn't notice the bug because we don't throw an error when specifing port bindings on a container which joins the pods network namespace. (#7373) Also allow the use of `--hostname` and pass that option to the pod and unset it for the container. The container has to use the pods hostname anyway. This would error otherwise. Added tests to prevent regression. Signed-off-by: Paul Holzinger --- cmd/podman/containers/create.go | 5 +++++ test/e2e/run_networking_test.go | 32 ++++++++++++++++++++++++++++++-- test/e2e/run_test.go | 8 ++++++++ 3 files changed, 43 insertions(+), 2 deletions(-) diff --git a/cmd/podman/containers/create.go b/cmd/podman/containers/create.go index 6eec93f989..801547033a 100644 --- a/cmd/podman/containers/create.go +++ b/cmd/podman/containers/create.go @@ -297,7 +297,12 @@ func createPodIfNecessary(s *specgen.SpecGenerator, netOpts *entities.NetOptions Infra: true, Net: netOpts, CreateCommand: os.Args, + Hostname: s.ContainerBasicConfig.Hostname, } + // Unset config values we passed to the pod to prevent them being used twice for the container and pod. + s.ContainerBasicConfig.Hostname = "" + s.ContainerNetworkConfig = specgen.ContainerNetworkConfig{} + s.Pod = podName return registry.ContainerEngine().PodCreate(context.Background(), createOptions) } diff --git a/test/e2e/run_networking_test.go b/test/e2e/run_networking_test.go index 83befe7301..a48f7c83ec 100644 --- a/test/e2e/run_networking_test.go +++ b/test/e2e/run_networking_test.go @@ -531,8 +531,8 @@ var _ = Describe("Podman run networking", func() { SkipIfRemote() SkipIfRootless() netName := "podmantestnetwork" - ipAddr := "10.20.30.128" - create := podmanTest.Podman([]string{"network", "create", "--subnet", "10.20.30.0/24", netName}) + ipAddr := "10.25.30.128" + create := podmanTest.Podman([]string{"network", "create", "--subnet", "10.25.30.0/24", netName}) create.WaitWithDefaultTimeout() Expect(create.ExitCode()).To(BeZero()) @@ -540,5 +540,33 @@ var _ = Describe("Podman run networking", func() { run.WaitWithDefaultTimeout() Expect(run.ExitCode()).To(BeZero()) Expect(run.OutputToString()).To(ContainSubstring(ipAddr)) + + netrm := podmanTest.Podman([]string{"network", "rm", netName}) + netrm.WaitWithDefaultTimeout() + Expect(netrm.ExitCode()).To(BeZero()) + }) + + It("podman run with new:pod and static-ip", func() { + SkipIfRemote() + SkipIfRootless() + netName := "podmantestnetwork2" + ipAddr := "10.25.40.128" + podname := "testpod" + create := podmanTest.Podman([]string{"network", "create", "--subnet", "10.25.40.0/24", netName}) + create.WaitWithDefaultTimeout() + Expect(create.ExitCode()).To(BeZero()) + + run := podmanTest.Podman([]string{"run", "-t", "-i", "--rm", "--pod", "new:" + podname, "--net", netName, "--ip", ipAddr, ALPINE, "ip", "addr"}) + run.WaitWithDefaultTimeout() + Expect(run.ExitCode()).To(BeZero()) + Expect(run.OutputToString()).To(ContainSubstring(ipAddr)) + + podrm := podmanTest.Podman([]string{"pod", "rm", "-f", podname}) + podrm.WaitWithDefaultTimeout() + Expect(podrm.ExitCode()).To(BeZero()) + + netrm := podmanTest.Podman([]string{"network", "rm", netName}) + netrm.WaitWithDefaultTimeout() + Expect(netrm.ExitCode()).To(BeZero()) }) }) diff --git a/test/e2e/run_test.go b/test/e2e/run_test.go index 6c65a23e8e..157b7d3d74 100644 --- a/test/e2e/run_test.go +++ b/test/e2e/run_test.go @@ -867,6 +867,14 @@ USER mail` Expect(match).To(BeTrue()) }) + It("podman run --pod new with hostname", func() { + hostname := "abc" + session := podmanTest.Podman([]string{"run", "--pod", "new:foobar", "--hostname", hostname, ALPINE, "cat", "/etc/hostname"}) + session.WaitWithDefaultTimeout() + Expect(session.ExitCode()).To(Equal(0)) + Expect(session.OutputToString()).To(ContainSubstring(hostname)) + }) + It("podman run --rm should work", func() { session := podmanTest.Podman([]string{"run", "--name", "test", "--rm", ALPINE, "ls"}) session.WaitWithDefaultTimeout()