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moby--moby/api/client/network.go
Madhu Venugopal 22a9ba090e Network UX and integration tests
* Exiting experimental network UX
* removed experimental service UX
* integrated with the new network remote API

Signed-off-by: Madhu Venugopal <madhu@docker.com>
2015-10-07 03:54:27 -07:00

207 lines
5.8 KiB
Go

package client
import (
"bytes"
"encoding/json"
"fmt"
"io"
"text/tabwriter"
"github.com/docker/docker/api/types"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/pkg/stringid"
)
// CmdNetwork is the parent subcommand for all network commands
//
// Usage: docker network <COMMAND> [OPTIONS]
func (cli *DockerCli) CmdNetwork(args ...string) error {
cmd := Cli.Subcmd("network", []string{"COMMAND [OPTIONS]"}, networkUsage(), false)
cmd.Require(flag.Min, 1)
err := cmd.ParseFlags(args, true)
cmd.Usage()
return err
}
// CmdNetworkCreate creates a new network with a given name
//
// Usage: docker network create [OPTIONS] <NETWORK-NAME>
func (cli *DockerCli) CmdNetworkCreate(args ...string) error {
cmd := Cli.Subcmd("network create", []string{"NETWORK-NAME"}, "Creates a new network with a name specified by the user", false)
flDriver := cmd.String([]string{"d", "-driver"}, "", "Driver to manage the Network")
cmd.Require(flag.Exact, 1)
err := cmd.ParseFlags(args, true)
if err != nil {
return err
}
// Construct network create request body
nc := types.NetworkCreate{Name: cmd.Arg(0), Driver: *flDriver, CheckDuplicate: true}
obj, _, err := readBody(cli.call("POST", "/networks/create", nc, nil))
if err != nil {
return err
}
var resp types.NetworkCreateResponse
err = json.Unmarshal(obj, &resp)
if err != nil {
return err
}
fmt.Fprintf(cli.out, "%s\n", resp.ID)
return nil
}
// CmdNetworkRm deletes a network
//
// Usage: docker network rm <NETWORK-NAME | NETWORK-ID>
func (cli *DockerCli) CmdNetworkRm(args ...string) error {
cmd := Cli.Subcmd("network rm", []string{"NETWORK"}, "Deletes a network", false)
cmd.Require(flag.Exact, 1)
err := cmd.ParseFlags(args, true)
if err != nil {
return err
}
_, _, err = readBody(cli.call("DELETE", "/networks/"+cmd.Arg(0), nil, nil))
if err != nil {
return err
}
return nil
}
// CmdNetworkConnect connects a container to a network
//
// Usage: docker network connect <NETWORK> <CONTAINER>
func (cli *DockerCli) CmdNetworkConnect(args ...string) error {
cmd := Cli.Subcmd("network connect", []string{"NETWORK CONTAINER"}, "Connects a container to a network", false)
cmd.Require(flag.Exact, 2)
err := cmd.ParseFlags(args, true)
if err != nil {
return err
}
nc := types.NetworkConnect{Container: cmd.Arg(1)}
_, _, err = readBody(cli.call("POST", "/networks/"+cmd.Arg(0)+"/connect", nc, nil))
return err
}
// CmdNetworkDisconnect disconnects a container from a network
//
// Usage: docker network disconnect <NETWORK> <CONTAINER>
func (cli *DockerCli) CmdNetworkDisconnect(args ...string) error {
cmd := Cli.Subcmd("network disconnect", []string{"NETWORK CONTAINER"}, "Disconnects container from a network", false)
cmd.Require(flag.Exact, 2)
err := cmd.ParseFlags(args, true)
if err != nil {
return err
}
nc := types.NetworkConnect{Container: cmd.Arg(1)}
_, _, err = readBody(cli.call("POST", "/networks/"+cmd.Arg(0)+"/disconnect", nc, nil))
return err
}
// CmdNetworkLs lists all the netorks managed by docker daemon
//
// Usage: docker network ls [OPTIONS]
func (cli *DockerCli) CmdNetworkLs(args ...string) error {
cmd := Cli.Subcmd("network ls", []string{""}, "Lists all the networks created by the user", false)
quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only display numeric IDs")
noTrunc := cmd.Bool([]string{"", "-no-trunc"}, false, "Do not truncate the output")
nLatest := cmd.Bool([]string{"l", "-latest"}, false, "Show the latest network created")
last := cmd.Int([]string{"n"}, -1, "Show n last created networks")
err := cmd.ParseFlags(args, true)
if err != nil {
return err
}
obj, _, err := readBody(cli.call("GET", "/networks", nil, nil))
if err != nil {
return err
}
if *last == -1 && *nLatest {
*last = 1
}
var networkResources []types.NetworkResource
err = json.Unmarshal(obj, &networkResources)
if err != nil {
return err
}
wr := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
// unless quiet (-q) is specified, print field titles
if !*quiet {
fmt.Fprintln(wr, "NETWORK ID\tNAME\tDRIVER")
}
for _, networkResource := range networkResources {
ID := networkResource.ID
netName := networkResource.Name
if !*noTrunc {
ID = stringid.TruncateID(ID)
}
if *quiet {
fmt.Fprintln(wr, ID)
continue
}
driver := networkResource.Driver
fmt.Fprintf(wr, "%s\t%s\t%s\t",
ID,
netName,
driver)
fmt.Fprint(wr, "\n")
}
wr.Flush()
return nil
}
// CmdNetworkInspect inspects the network object for more details
//
// Usage: docker network inspect <NETWORK>
// CmdNetworkInspect handles Network inspect UI
func (cli *DockerCli) CmdNetworkInspect(args ...string) error {
cmd := Cli.Subcmd("network inspect", []string{"NETWORK"}, "Displays detailed information on a network", false)
cmd.Require(flag.Exact, 1)
err := cmd.ParseFlags(args, true)
if err != nil {
return err
}
obj, _, err := readBody(cli.call("GET", "/networks/"+cmd.Arg(0), nil, nil))
if err != nil {
return err
}
networkResource := &types.NetworkResource{}
if err := json.NewDecoder(bytes.NewReader(obj)).Decode(networkResource); err != nil {
return err
}
indented := new(bytes.Buffer)
if err := json.Indent(indented, obj, "", " "); err != nil {
return err
}
if _, err := io.Copy(cli.out, indented); err != nil {
return err
}
return nil
}
func networkUsage() string {
networkCommands := map[string]string{
"create": "Create a network",
"connect": "Connect container to a network",
"disconnect": "Disconnect container from a network",
"inspect": "Display detailed network information",
"ls": "List all networks",
"rm": "Remove a network",
}
help := "Commands:\n"
for cmd, description := range networkCommands {
help += fmt.Sprintf(" %-25.25s%s\n", cmd, description)
}
help += fmt.Sprintf("\nRun 'docker network COMMAND --help' for more information on a command.")
return help
}