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12a00e6017
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>
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package network
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import (
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"fmt"
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"sort"
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"text/tabwriter"
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"golang.org/x/net/context"
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"github.com/docker/docker/api/client"
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"github.com/docker/docker/cli"
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"github.com/docker/docker/pkg/stringid"
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"github.com/docker/engine-api/types"
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"github.com/docker/engine-api/types/filters"
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"github.com/spf13/cobra"
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)
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type byNetworkName []types.NetworkResource
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func (r byNetworkName) Len() int { return len(r) }
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func (r byNetworkName) Swap(i, j int) { r[i], r[j] = r[j], r[i] }
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func (r byNetworkName) Less(i, j int) bool { return r[i].Name < r[j].Name }
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type listOptions struct {
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quiet bool
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noTrunc bool
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filter []string
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}
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func newListCommand(dockerCli *client.DockerCli) *cobra.Command {
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var opts listOptions
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cmd := &cobra.Command{
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Use: "ls",
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Aliases: []string{"list"},
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Short: "List networks",
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runList(dockerCli, opts)
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},
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}
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flags := cmd.Flags()
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flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only display volume names")
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flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate the output")
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flags.StringSliceVarP(&opts.filter, "filter", "f", []string{}, "Provide filter values (i.e. 'dangling=true')")
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return cmd
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}
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func runList(dockerCli *client.DockerCli, opts listOptions) error {
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client := dockerCli.Client()
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netFilterArgs := filters.NewArgs()
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for _, f := range opts.filter {
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var err error
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netFilterArgs, err = filters.ParseFlag(f, netFilterArgs)
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if err != nil {
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return err
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}
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}
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options := types.NetworkListOptions{
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Filters: netFilterArgs,
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}
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networkResources, err := client.NetworkList(context.Background(), options)
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if err != nil {
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return err
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}
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w := tabwriter.NewWriter(dockerCli.Out(), 20, 1, 3, ' ', 0)
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if !opts.quiet {
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fmt.Fprintf(w, "NETWORK ID\tNAME\tDRIVER\tSCOPE")
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fmt.Fprintf(w, "\n")
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}
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sort.Sort(byNetworkName(networkResources))
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for _, networkResource := range networkResources {
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ID := networkResource.ID
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netName := networkResource.Name
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driver := networkResource.Driver
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scope := networkResource.Scope
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if !opts.noTrunc {
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ID = stringid.TruncateID(ID)
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}
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if opts.quiet {
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fmt.Fprintln(w, ID)
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continue
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}
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fmt.Fprintf(w, "%s\t%s\t%s\t%s\t",
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ID,
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netName,
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driver,
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scope)
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fmt.Fprint(w, "\n")
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}
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w.Flush()
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return nil
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}
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