Add "podman volume" command

Add support for podman volume and its subcommands.
The commands supported are:
	podman volume create
	podman volume inspect
	podman volume ls
	podman volume rm
	podman volume prune

This is a tool to manage volumes used by podman. For now it only handle
named volumes, but eventually it will handle all volumes used by podman.

Signed-off-by: umohnani8 <umohnani@redhat.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/cmd/podman/volume_inspect.go b/cmd/podman/volume_inspect.go
new file mode 100644
index 000000000..152f1d098
--- /dev/null
+++ b/cmd/podman/volume_inspect.go
@@ -0,0 +1,63 @@
+package main
+
+import (
+	"github.com/containers/libpod/cmd/podman/libpodruntime"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli"
+)
+
+var volumeInspectDescription = `
+podman volume inspect
+
+Display detailed information on one or more volumes. Can change the format
+from JSON to a Go template.
+`
+
+var volumeInspectFlags = []cli.Flag{
+	cli.BoolFlag{
+		Name:  "all, a",
+		Usage: "Inspect all volumes",
+	},
+	cli.StringFlag{
+		Name:  "format, f",
+		Usage: "Format volume output using Go template",
+		Value: "json",
+	},
+}
+
+var volumeInspectCommand = cli.Command{
+	Name:                   "inspect",
+	Usage:                  "Display detailed information on one or more volumes",
+	Description:            volumeInspectDescription,
+	Flags:                  volumeInspectFlags,
+	Action:                 volumeInspectCmd,
+	SkipArgReorder:         true,
+	ArgsUsage:              "[VOLUME-NAME ...]",
+	UseShortOptionHandling: true,
+}
+
+func volumeInspectCmd(c *cli.Context) error {
+	var err error
+
+	if err = validateFlags(c, volumeInspectFlags); err != nil {
+		return err
+	}
+
+	runtime, err := libpodruntime.GetRuntime(c)
+	if err != nil {
+		return errors.Wrapf(err, "error creating libpod runtime")
+	}
+	defer runtime.Shutdown(false)
+
+	opts := volumeLsOptions{
+		Format: c.String("format"),
+	}
+
+	vols, lastError := getVolumesFromContext(c, runtime)
+	if lastError != nil {
+		logrus.Errorf("%q", lastError)
+	}
+
+	return generateVolLsOutput(vols, opts, runtime)
+}