From 895e0d0e2ea74cbba4a4a351e865c55f313bdf99 Mon Sep 17 00:00:00 2001
From: Paul Holzinger <paul.holzinger@web.de>
Date: Wed, 29 Jul 2020 21:58:46 +0200
Subject: [PATCH] fix pod creation with "new:" syntax

When you execute podman create/run with the --pod new:<name> syntax
the pod was created but the namespaces where not shared and
therefore containers could not communicate over localhost.

Add the default namespaces and pass the network options to the
pod create options.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
---
 cmd/podman/containers/create.go    | 13 ++++++-------
 cmd/podman/containers/run.go       |  2 +-
 pkg/specgen/generate/namespaces.go |  4 ++++
 test/e2e/run_test.go               |  6 +++++-
 4 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/cmd/podman/containers/create.go b/cmd/podman/containers/create.go
index 41e63da76b..0cd56f5408 100644
--- a/cmd/podman/containers/create.go
+++ b/cmd/podman/containers/create.go
@@ -124,7 +124,7 @@ func create(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	if _, err := createPodIfNecessary(s); err != nil {
+	if _, err := createPodIfNecessary(s, cliVals.Net); err != nil {
 		return err
 	}
 
@@ -279,7 +279,7 @@ func openCidFile(cidfile string) (*os.File, error) {
 // createPodIfNecessary automatically creates a pod when requested.  if the pod name
 // has the form new:ID, the pod ID is created and the name in the spec generator is replaced
 // with ID.
-func createPodIfNecessary(s *specgen.SpecGenerator) (*entities.PodCreateReport, error) {
+func createPodIfNecessary(s *specgen.SpecGenerator, netOpts *entities.NetOptions) (*entities.PodCreateReport, error) {
 	if !strings.HasPrefix(s.Pod, "new:") {
 		return nil, nil
 	}
@@ -288,11 +288,10 @@ func createPodIfNecessary(s *specgen.SpecGenerator) (*entities.PodCreateReport,
 		return nil, errors.Errorf("new pod name must be at least one character")
 	}
 	createOptions := entities.PodCreateOptions{
-		Name:  podName,
-		Infra: true,
-		Net: &entities.NetOptions{
-			PublishPorts: s.PortMappings,
-		},
+		Name:          podName,
+		Infra:         true,
+		Net:           netOpts,
+		CreateCommand: os.Args,
 	}
 	s.Pod = podName
 	return registry.ContainerEngine().PodCreate(context.Background(), createOptions)
diff --git a/cmd/podman/containers/run.go b/cmd/podman/containers/run.go
index 638b1c96e4..d8ffa57256 100644
--- a/cmd/podman/containers/run.go
+++ b/cmd/podman/containers/run.go
@@ -173,7 +173,7 @@ func run(cmd *cobra.Command, args []string) error {
 	}
 	runOpts.Spec = s
 
-	if _, err := createPodIfNecessary(s); err != nil {
+	if _, err := createPodIfNecessary(s, cliVals.Net); err != nil {
 		return err
 	}
 
diff --git a/pkg/specgen/generate/namespaces.go b/pkg/specgen/generate/namespaces.go
index 566830cd84..39a45398d1 100644
--- a/pkg/specgen/generate/namespaces.go
+++ b/pkg/specgen/generate/namespaces.go
@@ -452,6 +452,10 @@ func specConfigureNamespaces(s *specgen.SpecGenerator, g *generate.Generator, rt
 func GetNamespaceOptions(ns []string) ([]libpod.PodCreateOption, error) {
 	var options []libpod.PodCreateOption
 	var erroredOptions []libpod.PodCreateOption
+	if ns == nil {
+		//set the default namespaces
+		ns = strings.Split(specgen.DefaultKernelNamespaces, ",")
+	}
 	for _, toShare := range ns {
 		switch toShare {
 		case "cgroup":
diff --git a/test/e2e/run_test.go b/test/e2e/run_test.go
index d2950ed434..95eecd0425 100644
--- a/test/e2e/run_test.go
+++ b/test/e2e/run_test.go
@@ -797,7 +797,11 @@ USER mail`
 	})
 
 	It("podman run --pod automatically", func() {
-		session := podmanTest.Podman([]string{"run", "--pod", "new:foobar", ALPINE, "ls"})
+		session := podmanTest.Podman([]string{"run", "-d", "--pod", "new:foobar", ALPINE, "nc", "-l", "-p", "8080"})
+		session.WaitWithDefaultTimeout()
+		Expect(session.ExitCode()).To(Equal(0))
+
+		session = podmanTest.Podman([]string{"run", "--pod", "foobar", ALPINE, "/bin/sh", "-c", "echo test | nc -w 1 127.0.0.1 8080"})
 		session.WaitWithDefaultTimeout()
 		Expect(session.ExitCode()).To(Equal(0))