Added option to share kernel namespaces in libpod and podman

A pause container is added to the pod if the user opts in. The default pause image and command can be overridden. Pause containers are ignored in ps unless the -a option is present. Pod inspect and pod ps show shared namespaces and pause container. A pause container can't be removed with podman rm, and a pod can be removed if it only has a pause container.

Signed-off-by: haircommander <pehunt@redhat.com>

Closes: #1187
Approved by: mheon

1 files changed, 14 insertions, 1 deletions

diff --git a/test/e2e/libpod_suite_test.go b/test/e2e/libpod_suite_test.go
index 466f79ae9..019ba9377 100644
--- a/test/e2e/libpod_suite_test.go
+++ b/test/e2e/libpod_suite_test.go
@@ -32,7 +32,7 @@ var (
 	CGROUP_MANAGER     = "systemd"
 	STORAGE_OPTIONS    = "--storage-driver vfs"
 	ARTIFACT_DIR       = "/tmp/.artifacts"
-	CACHE_IMAGES       = []string{ALPINE, BB, fedoraMinimal, nginx, redis, registry}
+	CACHE_IMAGES       = []string{ALPINE, BB, fedoraMinimal, nginx, redis, registry, pause}
 	RESTORE_IMAGES     = []string{ALPINE, BB}
 	ALPINE             = "docker.io/library/alpine:latest"
 	BB                 = "docker.io/library/busybox:latest"
@@ -41,6 +41,7 @@ var (
 	nginx              = "quay.io/baude/alpine_nginx:latest"
 	redis              = "docker.io/library/redis:alpine"
 	registry           = "docker.io/library/registry:2"
+	pause              = "k8s.gcr.io/pause:3.1"
 	defaultWaitTimeout = 90
 )
 
@@ -422,6 +423,18 @@ func (p *PodmanTest) RestoreAllArtifacts() error {
 	return nil
 }
 
+// CreatePod creates a pod with no pause container
+// it optionally takes a pod name
+func (p *PodmanTest) CreatePod(name string) (*PodmanSession, int, string) {
+	var podmanArgs = []string{"pod", "create", "--pause=false", "--share", ""}
+	if name != "" {
+		podmanArgs = append(podmanArgs, "--name", name)
+	}
+	session := p.Podman(podmanArgs)
+	session.WaitWithDefaultTimeout()
+	return session, session.ExitCode(), session.OutputToString()
+}
+
 //RunTopContainer runs a simple container in the background that
 // runs top.  If the name passed != "", it will have a name
 func (p *PodmanTest) RunTopContainer(name string) *PodmanSession {