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moby--moby/api/client/inspect.go
Daniel Nephin 12a00e6017 Add Swarm management CLI commands
As described in our ROADMAP.md, introduce new Swarm management commands
to call to the corresponding API endpoints.

This PR is fully backward compatible (joining a Swarm is an optional
feature of the Engine, and existing commands are not impacted).

Signed-off-by: Daniel Nephin <dnephin@docker.com>
Signed-off-by: Victor Vieux <vieux@docker.com>
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2016-06-13 22:17:15 -07:00

95 lines
3.2 KiB
Go

package client
import (
"fmt"
"golang.org/x/net/context"
"github.com/docker/docker/api/client/inspect"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/engine-api/client"
)
// CmdInspect displays low-level information on one or more containers, images or tasks.
//
// Usage: docker inspect [OPTIONS] CONTAINER|IMAGE|TASK [CONTAINER|IMAGE|TASK...]
func (cli *DockerCli) CmdInspect(args ...string) error {
cmd := Cli.Subcmd("inspect", []string{"CONTAINER|IMAGE|TASK [CONTAINER|IMAGE|TASK...]"}, Cli.DockerCommands["inspect"].Description, true)
tmplStr := cmd.String([]string{"f", "-format"}, "", "Format the output using the given go template")
inspectType := cmd.String([]string{"-type"}, "", "Return JSON for specified type, (e.g image, container or task)")
size := cmd.Bool([]string{"s", "-size"}, false, "Display total file sizes if the type is container")
cmd.Require(flag.Min, 1)
cmd.ParseFlags(args, true)
if *inspectType != "" && *inspectType != "container" && *inspectType != "image" && *inspectType != "task" {
return fmt.Errorf("%q is not a valid value for --type", *inspectType)
}
ctx := context.Background()
var elementSearcher inspect.GetRefFunc
switch *inspectType {
case "container":
elementSearcher = cli.inspectContainers(ctx, *size)
case "image":
elementSearcher = cli.inspectImages(ctx, *size)
case "task":
if *size {
fmt.Fprintln(cli.err, "WARNING: --size ignored for tasks")
}
elementSearcher = cli.inspectTasks(ctx)
default:
elementSearcher = cli.inspectAll(ctx, *size)
}
return inspect.Inspect(cli.out, cmd.Args(), *tmplStr, elementSearcher)
}
func (cli *DockerCli) inspectContainers(ctx context.Context, getSize bool) inspect.GetRefFunc {
return func(ref string) (interface{}, []byte, error) {
return cli.client.ContainerInspectWithRaw(ctx, ref, getSize)
}
}
func (cli *DockerCli) inspectImages(ctx context.Context, getSize bool) inspect.GetRefFunc {
return func(ref string) (interface{}, []byte, error) {
return cli.client.ImageInspectWithRaw(ctx, ref, getSize)
}
}
func (cli *DockerCli) inspectTasks(ctx context.Context) inspect.GetRefFunc {
return func(ref string) (interface{}, []byte, error) {
return cli.client.TaskInspectWithRaw(ctx, ref)
}
}
func (cli *DockerCli) inspectAll(ctx context.Context, getSize bool) inspect.GetRefFunc {
return func(ref string) (interface{}, []byte, error) {
c, rawContainer, err := cli.client.ContainerInspectWithRaw(ctx, ref, getSize)
if err != nil {
// Search for image with that id if a container doesn't exist.
if client.IsErrContainerNotFound(err) {
i, rawImage, err := cli.client.ImageInspectWithRaw(ctx, ref, getSize)
if err != nil {
if client.IsErrImageNotFound(err) {
// Search for task with that id if an image doesn't exists.
t, rawTask, err := cli.client.TaskInspectWithRaw(ctx, ref)
if err != nil {
return nil, nil, fmt.Errorf("Error: No such image, container or task: %s", ref)
}
if getSize {
fmt.Fprintln(cli.err, "WARNING: --size ignored for tasks")
}
return t, rawTask, nil
}
return nil, nil, err
}
return i, rawImage, err
}
return nil, nil, err
}
return c, rawContainer, err
}
}