Enables port test

Adds port subcommand for containers
Updates check for no args when all flag is set.

Signed-off-by: Sujil02 <sushah@redhat.com>

2 files changed, 44 insertions, 9 deletions

diff --git a/cmd/podman/containers/port.go b/cmd/podman/containers/port.go
index 2e3386aa9..ec0ddf838 100644
--- a/cmd/podman/containers/port.go
+++ b/cmd/podman/containers/port.go
@@ -11,6 +11,7 @@ import (
 	"github.com/cri-o/ocicni/pkg/ocicni"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
 )
 
 var (
@@ -28,23 +29,50 @@ var (
   podman port ctrID 80/tcp
   podman port --latest 80`,
 	}
+
+	containerPortCommand = &cobra.Command{
+		Use:   "port [flags] CONTAINER [PORT]",
+		Short: portCommand.Short,
+		Long:  portDescription,
+		RunE:  portCommand.RunE,
+		Args: func(cmd *cobra.Command, args []string) error {
+			return parse.CheckAllLatestAndCIDFile(cmd, args, true, false)
+		},
+		Example: `podman container port --all
+  podman container port --latest 80`,
+	}
 )
 
 var (
 	portOpts entities.ContainerPortOptions
 )
 
+func portFlags(flags *pflag.FlagSet) {
+	flags.BoolVarP(&portOpts.All, "all", "a", false, "Display port information for all containers")
+	flags.BoolVarP(&portOpts.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
+	if registry.IsRemote() {
+		_ = flags.MarkHidden("latest")
+	}
+}
+
 func init() {
 	registry.Commands = append(registry.Commands, registry.CliCommand{
 		Mode:    []entities.EngineMode{entities.ABIMode},
 		Command: portCommand,
 	})
+
 	flags := portCommand.Flags()
-	flags.BoolVarP(&portOpts.All, "all", "a", false, "Display port information for all containers")
-	flags.BoolVarP(&portOpts.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
-	if registry.IsRemote() {
-		_ = flags.MarkHidden("latest")
-	}
+	portFlags(flags)
+
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode},
+		Command: containerPortCommand,
+		Parent:  containerCmd,
+	})
+
+	containerPortflags := containerPortCommand.Flags()
+	portFlags(containerPortflags)
+
 }
 
 func port(cmd *cobra.Command, args []string) error {
diff --git a/cmd/podman/parse/common.go b/cmd/podman/parse/common.go
index a5e9b4fc2..13f425b6d 100644
--- a/cmd/podman/parse/common.go
+++ b/cmd/podman/parse/common.go
@@ -30,13 +30,20 @@ func CheckAllLatestAndCIDFile(c *cobra.Command, args []string, ignoreArgLen bool
 		return errors.Errorf("--all and --latest cannot be used together")
 	}
 
+	if (argLen > 0) && specifiedAll {
+		return errors.Errorf("no arguments are needed with --all")
+	}
+
 	if ignoreArgLen {
 		return nil
 	}
-	if (argLen > 0) && (specifiedAll || specifiedLatest) {
-		return errors.Errorf("no arguments are needed with --all or --latest")
-	} else if cidfile && (argLen > 0) && (specifiedAll || specifiedLatest || specifiedCIDFile) {
-		return errors.Errorf("no arguments are needed with --all, --latest or --cidfile")
+
+	if argLen > 0 {
+		if specifiedLatest {
+			return errors.Errorf("no arguments are needed with --latest")
+		} else if cidfile && (specifiedLatest || specifiedCIDFile) {
+			return errors.Errorf("no arguments are needed with --latest or --cidfile")
+		}
 	}
 
 	if specifiedCIDFile {