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moby--moby/api/client/network/list.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

100 lines
2.3 KiB
Go

package network
import (
"fmt"
"sort"
"text/tabwriter"
"golang.org/x/net/context"
"github.com/docker/docker/api/client"
"github.com/docker/docker/cli"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/engine-api/types"
"github.com/docker/engine-api/types/filters"
"github.com/spf13/cobra"
)
type byNetworkName []types.NetworkResource
func (r byNetworkName) Len() int { return len(r) }
func (r byNetworkName) Swap(i, j int) { r[i], r[j] = r[j], r[i] }
func (r byNetworkName) Less(i, j int) bool { return r[i].Name < r[j].Name }
type listOptions struct {
quiet bool
noTrunc bool
filter []string
}
func newListCommand(dockerCli *client.DockerCli) *cobra.Command {
var opts listOptions
cmd := &cobra.Command{
Use: "ls",
Aliases: []string{"list"},
Short: "List networks",
Args: cli.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
return runList(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only display volume names")
flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate the output")
flags.StringSliceVarP(&opts.filter, "filter", "f", []string{}, "Provide filter values (i.e. 'dangling=true')")
return cmd
}
func runList(dockerCli *client.DockerCli, opts listOptions) error {
client := dockerCli.Client()
netFilterArgs := filters.NewArgs()
for _, f := range opts.filter {
var err error
netFilterArgs, err = filters.ParseFlag(f, netFilterArgs)
if err != nil {
return err
}
}
options := types.NetworkListOptions{
Filters: netFilterArgs,
}
networkResources, err := client.NetworkList(context.Background(), options)
if err != nil {
return err
}
w := tabwriter.NewWriter(dockerCli.Out(), 20, 1, 3, ' ', 0)
if !opts.quiet {
fmt.Fprintf(w, "NETWORK ID\tNAME\tDRIVER\tSCOPE")
fmt.Fprintf(w, "\n")
}
sort.Sort(byNetworkName(networkResources))
for _, networkResource := range networkResources {
ID := networkResource.ID
netName := networkResource.Name
driver := networkResource.Driver
scope := networkResource.Scope
if !opts.noTrunc {
ID = stringid.TruncateID(ID)
}
if opts.quiet {
fmt.Fprintln(w, ID)
continue
}
fmt.Fprintf(w, "%s\t%s\t%s\t%s\t",
ID,
netName,
driver,
scope)
fmt.Fprint(w, "\n")
}
w.Flush()
return nil
}