Merge pull request #5978 from rhatdan/ports

Make podman container list == podman ps

4 files changed, 30 insertions, 122 deletions

diff --git a/cmd/podman/common/ports.go b/cmd/podman/common/ports.go
index 7e2b1e79d..a96bafabd 100644
--- a/cmd/podman/common/ports.go
+++ b/cmd/podman/common/ports.go
@@ -1,28 +1,11 @@
 package common
 
 import (
-	"fmt"
-	"net"
-	"strconv"
-
-	"github.com/cri-o/ocicni/pkg/ocicni"
 	"github.com/docker/go-connections/nat"
 	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
 )
 
-// ExposedPorts parses user and image ports and returns binding information
-func ExposedPorts(expose []string, publish []ocicni.PortMapping, publishAll bool, imageExposedPorts map[string]struct{}) ([]ocicni.PortMapping, error) {
-	containerPorts := make(map[string]string)
-
-	// TODO this needs to be added into a something that
-	// has access to an imageengine
-	// add expose ports from the image itself
-	//for expose := range imageExposedPorts {
-	//	_, port := nat.SplitProtoPort(expose)
-	//	containerPorts[port] = ""
-	//}
-
+func verifyExpose(expose []string) error {
 	// add the expose ports from the user (--expose)
 	// can be single or a range
 	for _, expose := range expose {
@@ -30,97 +13,10 @@ func ExposedPorts(expose []string, publish []ocicni.PortMapping, publishAll bool
 		_, port := nat.SplitProtoPort(expose)
 		//parse the start and end port and create a sequence of ports to expose
 		//if expose a port, the start and end port are the same
-		start, end, err := nat.ParsePortRange(port)
+		_, _, err := nat.ParsePortRange(port)
 		if err != nil {
-			return nil, fmt.Errorf("invalid range format for --expose: %s, error: %s", expose, err)
-		}
-		for i := start; i <= end; i++ {
-			containerPorts[strconv.Itoa(int(i))] = ""
-		}
-	}
-
-	// TODO/FIXME this is hell reencarnated
-	// parse user inputted port bindings
-	pbPorts, portBindings, err := nat.ParsePortSpecs([]string{})
-	if err != nil {
-		return nil, err
-	}
-
-	// delete exposed container ports if being used by -p
-	for i := range pbPorts {
-		delete(containerPorts, i.Port())
-	}
-
-	// iterate container ports and make port bindings from them
-	if publishAll {
-		for e := range containerPorts {
-			//support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
-			//proto, port := nat.SplitProtoPort(e)
-			p, err := nat.NewPort("tcp", e)
-			if err != nil {
-				return nil, err
-			}
-			rp, err := getRandomPort()
-			if err != nil {
-				return nil, err
-			}
-			logrus.Debug(fmt.Sprintf("Using random host port %d with container port %d", rp, p.Int()))
-			portBindings[p] = CreatePortBinding(rp, "")
-		}
-	}
-
-	// We need to see if any host ports are not populated and if so, we need to assign a
-	// random port to them.
-	for k, pb := range portBindings {
-		if pb[0].HostPort == "" {
-			hostPort, err := getRandomPort()
-			if err != nil {
-				return nil, err
-			}
-			logrus.Debug(fmt.Sprintf("Using random host port %d with container port %s", hostPort, k.Port()))
-			pb[0].HostPort = strconv.Itoa(hostPort)
-		}
-	}
-	var pms []ocicni.PortMapping
-	for k, v := range portBindings {
-		for _, pb := range v {
-			hp, err := strconv.Atoi(pb.HostPort)
-			if err != nil {
-				return nil, err
-			}
-			pms = append(pms, ocicni.PortMapping{
-				HostPort:      int32(hp),
-				ContainerPort: int32(k.Int()),
-				//Protocol:      "",
-				HostIP: pb.HostIP,
-			})
+			return errors.Wrapf(err, "invalid range format for --expose: %s", expose)
 		}
 	}
-	return pms, nil
-}
-
-func getRandomPort() (int, error) {
-	l, err := net.Listen("tcp", ":0")
-	if err != nil {
-		return 0, errors.Wrapf(err, "unable to get free port")
-	}
-	defer l.Close()
-	_, randomPort, err := net.SplitHostPort(l.Addr().String())
-	if err != nil {
-		return 0, errors.Wrapf(err, "unable to determine free port")
-	}
-	rp, err := strconv.Atoi(randomPort)
-	if err != nil {
-		return 0, errors.Wrapf(err, "unable to convert random port to int")
-	}
-	return rp, nil
-}
-
-//CreatePortBinding takes port (int) and IP (string) and creates an array of portbinding structs
-func CreatePortBinding(hostPort int, hostIP string) []nat.PortBinding {
-	pb := nat.PortBinding{
-		HostPort: strconv.Itoa(hostPort),
-	}
-	pb.HostIP = hostIP
-	return []nat.PortBinding{pb}
+	return nil
 }
diff --git a/cmd/podman/common/specgen.go b/cmd/podman/common/specgen.go
index ba9022aff..c98377a69 100644
--- a/cmd/podman/common/specgen.go
+++ b/cmd/podman/common/specgen.go
@@ -227,11 +227,14 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *ContainerCLIOpts, args []string
 	}
 
 	s.Terminal = c.TTY
-	ep, err := ExposedPorts(c.Expose, c.Net.PublishPorts, c.PublishAll, nil)
-	if err != nil {
+
+	if err := verifyExpose(c.Expose); err != nil {
 		return err
 	}
-	s.PortMappings = ep
+	// We are not handling the Expose flag yet.
+	// s.PortsExpose = c.Expose
+	s.PortMappings = c.Net.PublishPorts
+	s.PublishImagePorts = c.PublishAll
 	s.Pod = c.Pod
 
 	for k, v := range map[string]*specgen.Namespace{
diff --git a/cmd/podman/containers/list.go b/cmd/podman/containers/list.go
index 938fb63d3..b5019ddd2 100644
--- a/cmd/podman/containers/list.go
+++ b/cmd/podman/containers/list.go
@@ -14,7 +14,7 @@ var (
 		Args:    cobra.NoArgs,
 		Short:   "List containers",
 		Long:    "Prints out information about the containers",
-		RunE:    containers,
+		RunE:    ps,
 		Example: `podman container list -a
   podman container list -a --format "{{.ID}}  {{.Image}}  {{.Labels}}  {{.Mounts}}"
   podman container list --size --sort names`,
@@ -27,8 +27,5 @@ func init() {
 		Command: listCmd,
 		Parent:  containerCmd,
 	})
-}
-
-func containers(cmd *cobra.Command, args []string) error {
-	return nil
+	listFlagSet(listCmd.Flags())
 }
diff --git a/cmd/podman/containers/ps.go b/cmd/podman/containers/ps.go
index a006e918d..82434e9cc 100644
--- a/cmd/podman/containers/ps.go
+++ b/cmd/podman/containers/ps.go
@@ -18,6 +18,7 @@ import (
 	"github.com/docker/go-units"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
 )
 
 var (
@@ -47,7 +48,10 @@ func init() {
 		Mode:    []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
 		Command: psCommand,
 	})
-	flags := psCommand.Flags()
+	listFlagSet(psCommand.Flags())
+}
+
+func listFlagSet(flags *pflag.FlagSet) {
 	flags.BoolVarP(&listOpts.All, "all", "a", false, "Show all the containers, default is only running containers")
 	flags.StringSliceVarP(&filters, "filter", "f", []string{}, "Filter output based on conditions given")
 	flags.StringVar(&listOpts.Format, "format", "", "Pretty-print containers to JSON or using a Go template")
@@ -165,14 +169,14 @@ func ps(cmd *cobra.Command, args []string) error {
 		responses = append(responses, psReporter{r})
 	}
 
-	headers, row := createPsOut()
+	headers, format := createPsOut()
 	if cmd.Flag("format").Changed {
-		row = listOpts.Format
-		if !strings.HasPrefix(row, "\n") {
-			row += "\n"
+		format = listOpts.Format
+		if !strings.HasPrefix(format, "\n") {
+			format += "\n"
 		}
 	}
-	format := "{{range . }}" + row + "{{end}}"
+	format = "{{range . }}" + format + "{{end}}"
 	if !listOpts.Quiet && !cmd.Flag("format").Changed {
 		format = headers + format
 	}
@@ -247,6 +251,14 @@ type psReporter struct {
 	entities.ListContainer
 }
 
+// ImageID returns the ID of the container
+func (l psReporter) ImageID() string {
+	if !noTrunc {
+		return l.ListContainer.ImageID[0:12]
+	}
+	return l.ListContainer.ImageID
+}
+
 // ID returns the ID of the container
 func (l psReporter) ID() string {
 	if !noTrunc {