Print port mappings in `ps` for ctrs sharing network

In Podman v1.9, we printed port mappings for the container, even
if it shared its network namespace (and thus ports) with another
container. We regressed on this in Podman v2.0, which is fixed
here.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

pkg/ps/ps.go

@@ -145,11 +145,15 @@ func ListContainerBatch(rt *libpod.Runtime, ctr *libpod.Container, opts entities
 		}
 		return nil
 	})
-
 	if batchErr != nil {
 		return entities.ListContainer{}, batchErr
 	}
 
+	portMappings, err := ctr.PortMappings()
+	if err != nil {
+		return entities.ListContainer{}, err
+	}
+
 	ps := entities.ListContainer{
 		Command:   conConfig.Command,
 		Created:   conConfig.CreatedTime.Unix(),
@@ -165,7 +169,7 @@ func ListContainerBatch(rt *libpod.Runtime, ctr *libpod.Container, opts entities
 		Names:     []string{conConfig.Name},
 		Pid:       pid,
 		Pod:       conConfig.Pod,
-		Ports:     conConfig.PortMappings,
+		Ports:     portMappings,
 		Size:      size,
 		StartedAt: startedTime.Unix(),
 		State:     conState.String(),

test/e2e/ps_test.go

@@ -449,4 +449,21 @@ var _ = Describe("Podman ps", func() {
 		Expect(len(output)).To(Equal(1))
 		Expect(output[0]).To(Equal(ctrName))
 	})
+
+	It("podman ps test with port shared with pod", func() {
+		podName := "testPod"
+		pod := podmanTest.Podman([]string{"pod", "create", "-p", "8080:80", "--name", podName})
+		pod.WaitWithDefaultTimeout()
+		Expect(pod.ExitCode()).To(Equal(0))
+
+		ctrName := "testCtr"
+		session := podmanTest.Podman([]string{"run", "--name", ctrName, "-dt", "--pod", podName, ALPINE, "top"})
+		session.WaitWithDefaultTimeout()
+		Expect(session.ExitCode()).To(Equal(0))
+
+		ps := podmanTest.Podman([]string{"ps", "--filter", fmt.Sprintf("name=%s", ctrName), "--format", "{{.Ports}}"})
+		ps.WaitWithDefaultTimeout()
+		Expect(ps.ExitCode()).To(Equal(0))
+		Expect(ps.OutputToString()).To(ContainSubstring("0.0.0.0:8080->80/tcp"))
+	})
 })