Include exposed ports in inspect output when net=host

libpod/container_inspect.go

@@ -211,6 +211,7 @@ func (c *Container) getContainerInspectData(size bool, driverData *define.Driver
 		return nil, err
 	}
 	data.NetworkSettings = networkConfig
+	addInspectPortsExpose(c.config.ExposedPorts, data.NetworkSettings.Ports)
 
 	inspectConfig := c.generateInspectContainerConfig(ctrSpec)
 	data.Config = inspectConfig

libpod/networking_common.go

@@ -204,7 +204,7 @@ func (c *Container) getContainerNetworkInfo() (*define.InspectNetworkSettings, e
 	}
 
 	settings := new(define.InspectNetworkSettings)
-	settings.Ports = makeInspectPorts(c.config.PortMappings, c.config.ExposedPorts)
+	settings.Ports = makeInspectPortBindings(c.config.PortMappings)
 
 	networks, err := c.networks()
 	if err != nil {

libpod/options.go

@@ -1067,7 +1067,7 @@ func WithDependencyCtrs(ctrs []*Container) CtrCreateOption {
 // namespace with a minimal configuration.
 // An optional array of port mappings can be provided.
 // Conflicts with WithNetNSFrom().
-func WithNetNS(portMappings []nettypes.PortMapping, exposedPorts map[uint16][]string, postConfigureNetNS bool, netmode string, networks map[string]nettypes.PerNetworkOptions) CtrCreateOption {
+func WithNetNS(portMappings []nettypes.PortMapping, postConfigureNetNS bool, netmode string, networks map[string]nettypes.PerNetworkOptions) CtrCreateOption {
 	return func(ctr *Container) error {
 		if ctr.valid {
 			return define.ErrCtrFinalized
@@ -1077,7 +1077,6 @@ func WithNetNS(portMappings []nettypes.PortMapping, exposedPorts map[uint16][]st
 		ctr.config.NetMode = namespaces.NetworkMode(netmode)
 		ctr.config.CreateNetNS = true
 		ctr.config.PortMappings = portMappings
-		ctr.config.ExposedPorts = exposedPorts
 
 		if !ctr.config.NetMode.IsBridge() && len(networks) > 0 {
 			return errors.New("cannot use networks when network mode is not bridge")
@@ -1088,6 +1087,20 @@ func WithNetNS(portMappings []nettypes.PortMapping, exposedPorts map[uint16][]st
 	}
 }
 
+// WithExposedPorts includes a set of ports that were exposed by the image in
+// the container config, e.g. for display when the container is inspected.
+func WithExposedPorts(exposedPorts map[uint16][]string) CtrCreateOption {
+	return func(ctr *Container) error {
+		if ctr.valid {
+			return define.ErrCtrFinalized
+		}
+
+		ctr.config.ExposedPorts = exposedPorts
+
+		return nil
+	}
+}
+
 // WithNetworkOptions sets additional options for the networks.
 func WithNetworkOptions(options map[string][]string) CtrCreateOption {
 	return func(ctr *Container) error {

libpod/util.go

@@ -223,13 +223,8 @@ func writeHijackHeader(r *http.Request, conn io.Writer, tty bool) {
 	}
 }
 
-// Convert OCICNI port bindings into Inspect-formatted port bindings.
+// Generate inspect-formatted port mappings from the format used in our config file
 func makeInspectPortBindings(bindings []types.PortMapping) map[string][]define.InspectHostPort {
-	return makeInspectPorts(bindings, nil)
-}
-
-// Convert OCICNI port bindings into Inspect-formatted port bindings with exposed, but not bound ports set to nil.
-func makeInspectPorts(bindings []types.PortMapping, expose map[uint16][]string) map[string][]define.InspectHostPort {
 	portBindings := make(map[string][]define.InspectHostPort)
 	for _, port := range bindings {
 		protocols := strings.Split(port.Protocol, ",")
@@ -249,7 +244,12 @@ func makeInspectPorts(bindings []types.PortMapping, expose map[uint16][]string)
 			}
 		}
 	}
-	// add exposed ports without host port information to match docker
+
+	return portBindings
+}
+
+// Add exposed ports to inspect port bindings. These must be done on a per-container basis, not per-netns basis.
+func addInspectPortsExpose(expose map[uint16][]string, portBindings map[string][]define.InspectHostPort) {
 	for port, protocols := range expose {
 		for _, protocol := range protocols {
 			key := fmt.Sprintf("%d/%s", port, protocol)
@@ -258,7 +258,6 @@ func makeInspectPorts(bindings []types.PortMapping, expose map[uint16][]string)
 			}
 		}
 	}
-	return portBindings
 }
 
 // Write a given string to a new file at a given path.

pkg/specgen/generate/namespaces.go

@@ -297,6 +297,13 @@ func namespaceOptions(s *specgen.SpecGenerator, rt *libpod.Runtime, pod *libpod.
 
 	postConfigureNetNS := needPostConfigureNetNS(s)
 
+	// Network
+	portMappings, expose, err := createPortMappings(s, imageData)
+	if err != nil {
+		return nil, err
+	}
+	toReturn = append(toReturn, libpod.WithExposedPorts(expose))
+
 	switch s.NetNS.NSMode {
 	case specgen.FromPod:
 		if pod == nil || infraCtr == nil {
@@ -316,28 +323,15 @@ func namespaceOptions(s *specgen.SpecGenerator, rt *libpod.Runtime, pod *libpod.
 			toReturn = append(toReturn, libpod.WithNetNSFrom(netCtr))
 		}
 	case specgen.Slirp:
-		portMappings, expose, err := createPortMappings(s, imageData)
-		if err != nil {
-			return nil, err
-		}
 		val := "slirp4netns"
 		if s.NetNS.Value != "" {
 			val = fmt.Sprintf("slirp4netns:%s", s.NetNS.Value)
 		}
-		toReturn = append(toReturn, libpod.WithNetNS(portMappings, expose, postConfigureNetNS, val, nil))
+		toReturn = append(toReturn, libpod.WithNetNS(portMappings, postConfigureNetNS, val, nil))
 	case specgen.Pasta:
-		portMappings, expose, err := createPortMappings(s, imageData)
-		if err != nil {
-			return nil, err
-		}
 		val := "pasta"
-		toReturn = append(toReturn, libpod.WithNetNS(portMappings, expose, postConfigureNetNS, val, nil))
+		toReturn = append(toReturn, libpod.WithNetNS(portMappings, postConfigureNetNS, val, nil))
 	case specgen.Bridge, specgen.Private, specgen.Default:
-		portMappings, expose, err := createPortMappings(s, imageData)
-		if err != nil {
-			return nil, err
-		}
-
 		rtConfig, err := rt.GetConfigNoCopy()
 		if err != nil {
 			return nil, err
@@ -364,7 +358,7 @@ func namespaceOptions(s *specgen.SpecGenerator, rt *libpod.Runtime, pod *libpod.
 			s.Networks[rtConfig.Network.DefaultNetwork] = opts
 			delete(s.Networks, "default")
 		}
-		toReturn = append(toReturn, libpod.WithNetNS(portMappings, expose, postConfigureNetNS, "bridge", s.Networks))
+		toReturn = append(toReturn, libpod.WithNetNS(portMappings, postConfigureNetNS, "bridge", s.Networks))
 	}
 
 	if s.UseImageHosts != nil && *s.UseImageHosts {

test/e2e/run_networking_test.go

@@ -441,6 +441,38 @@ EXPOSE 2004-2005/tcp`, ALPINE)
 		Expect(inspectOut[0].HostConfig.PublishAllPorts).To(BeTrue())
 	})
 
+	It("podman run --net=host --expose includes port in inspect output", func() {
+		containerName := "testctr"
+		session := podmanTest.Podman([]string{"run", "--name", containerName, "-d", "--expose", "8080/tcp", NGINX_IMAGE, "sleep", "+inf"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(ExitCleanly())
+
+		inspectOut := podmanTest.InspectContainer(containerName)
+		Expect(inspectOut).To(HaveLen(1))
+
+		// 80 from the image, 8080 from the expose
+		Expect(inspectOut[0].NetworkSettings.Ports).To(HaveLen(2))
+		Expect(inspectOut[0].NetworkSettings.Ports).To(HaveKey("80/tcp"))
+		Expect(inspectOut[0].NetworkSettings.Ports).To(HaveKey("8080/tcp"))
+	})
+
+	It("podman run --net=container --expose exposed port from own container", func() {
+		ctr1 := "test1"
+		session1 := podmanTest.Podman([]string{"run", "-d", "--name", ctr1, "--expose", "8080/tcp", ALPINE, "top"})
+		session1.WaitWithDefaultTimeout()
+		Expect(session1).Should(ExitCleanly())
+
+		ctr2 := "test2"
+		session2 := podmanTest.Podman([]string{"run", "-d", "--name", ctr2, "--net", fmt.Sprintf("container:%s", ctr1), "--expose", "8090/tcp", ALPINE, "top"})
+		session2.WaitWithDefaultTimeout()
+		Expect(session2).Should(ExitCleanly())
+
+		inspectOut := podmanTest.InspectContainer(ctr2)
+		Expect(inspectOut).To(HaveLen(1))
+		Expect(inspectOut[0].NetworkSettings.Ports).To(HaveLen(1))
+		Expect(inspectOut[0].NetworkSettings.Ports).To(HaveKey("8090/tcp"))
+	})
+
 	It("podman run -p 127.0.0.1::8980/udp", func() {
 		name := "testctr"
 		session := podmanTest.Podman([]string{"create", "-t", "-p", "127.0.0.1::8980/udp", "--name", name, ALPINE, "/bin/sh"})