Initial checkin from CRI-O repo

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

1 files changed, 120 insertions, 0 deletions

diff --git a/cmd/kpod/inspect.go b/cmd/kpod/inspect.go
new file mode 100644
index 000000000..45e9d7e18
--- /dev/null
+++ b/cmd/kpod/inspect.go
@@ -0,0 +1,120 @@
+package main
+
+import (
+	"github.com/kubernetes-incubator/cri-o/cmd/kpod/formats"
+	"github.com/kubernetes-incubator/cri-o/libkpod"
+	"github.com/kubernetes-incubator/cri-o/libpod/images"
+	"github.com/pkg/errors"
+	"github.com/urfave/cli"
+)
+
+const (
+	inspectTypeContainer = "container"
+	inspectTypeImage     = "image"
+	inspectAll           = "all"
+)
+
+var (
+	inspectFlags = []cli.Flag{
+		cli.StringFlag{
+			Name:  "type, t",
+			Value: inspectAll,
+			Usage: "Return JSON for specified type, (e.g image, container or task)",
+		},
+		cli.StringFlag{
+			Name:  "format, f",
+			Usage: "Change the output format to a Go template",
+		},
+		cli.BoolFlag{
+			Name:  "size",
+			Usage: "Display total file size if the type is container",
+		},
+	}
+	inspectDescription = "This displays the low-level information on containers and images identified by name or ID. By default, this will render all results in a JSON array. If the container and image have the same name, this will return container JSON for unspecified type."
+	inspectCommand     = cli.Command{
+		Name:        "inspect",
+		Usage:       "Displays the configuration of a container or image",
+		Description: inspectDescription,
+		Flags:       inspectFlags,
+		Action:      inspectCmd,
+		ArgsUsage:   "CONTAINER-OR-IMAGE",
+	}
+)
+
+func inspectCmd(c *cli.Context) error {
+	args := c.Args()
+	if len(args) == 0 {
+		return errors.Errorf("container or image name must be specified: kpod inspect [options [...]] name")
+	}
+	if len(args) > 1 {
+		return errors.Errorf("too many arguments specified")
+	}
+	if err := validateFlags(c, inspectFlags); err != nil {
+		return err
+	}
+
+	itemType := c.String("type")
+	size := c.Bool("size")
+
+	switch itemType {
+	case inspectTypeContainer:
+	case inspectTypeImage:
+	case inspectAll:
+	default:
+		return errors.Errorf("the only recognized types are %q, %q, and %q", inspectTypeContainer, inspectTypeImage, inspectAll)
+	}
+
+	name := args[0]
+
+	config, err := getConfig(c)
+	if err != nil {
+		return errors.Wrapf(err, "Could not get config")
+	}
+	server, err := libkpod.New(config)
+	if err != nil {
+		return errors.Wrapf(err, "could not get container server")
+	}
+	defer server.Shutdown()
+	if err = server.Update(); err != nil {
+		return errors.Wrapf(err, "could not update list of containers")
+	}
+
+	outputFormat := c.String("format")
+	var data interface{}
+	switch itemType {
+	case inspectTypeContainer:
+		data, err = server.GetContainerData(name, size)
+		if err != nil {
+			return errors.Wrapf(err, "error parsing container data")
+		}
+	case inspectTypeImage:
+		data, err = images.GetData(server.Store(), name)
+		if err != nil {
+			return errors.Wrapf(err, "error parsing image data")
+		}
+	case inspectAll:
+		ctrData, err := server.GetContainerData(name, size)
+		if err != nil {
+			imgData, err := images.GetData(server.Store(), name)
+			if err != nil {
+				return errors.Wrapf(err, "error parsing container or image data")
+			}
+			data = imgData
+
+		} else {
+			data = ctrData
+		}
+	}
+
+	var out formats.Writer
+	if outputFormat != "" && outputFormat != formats.JSONString {
+		//template
+		out = formats.StdoutTemplate{Output: data, Template: outputFormat}
+	} else {
+		// default is json output
+		out = formats.JSONStruct{Output: data}
+	}
+
+	formats.Writer(out).Out()
+	return nil
+}