mirror of https://github.com/docker/cli.git
86 lines
2.1 KiB
Go
86 lines
2.1 KiB
Go
package node
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import (
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"context"
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"sort"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/docker/cli/cli/command/formatter"
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"github.com/docker/cli/opts"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/swarm"
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"github.com/spf13/cobra"
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"vbom.ml/util/sortorder"
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)
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type byHostname []swarm.Node
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func (n byHostname) Len() int { return len(n) }
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func (n byHostname) Swap(i, j int) { n[i], n[j] = n[j], n[i] }
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func (n byHostname) Less(i, j int) bool {
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return sortorder.NaturalLess(n[i].Description.Hostname, n[j].Description.Hostname)
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}
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type listOptions struct {
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quiet bool
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format string
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filter opts.FilterOpt
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}
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func newListCommand(dockerCli command.Cli) *cobra.Command {
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options := listOptions{filter: opts.NewFilterOpt()}
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cmd := &cobra.Command{
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Use: "ls [OPTIONS]",
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Aliases: []string{"list"},
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Short: "List nodes in the swarm",
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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, options)
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},
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}
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flags := cmd.Flags()
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flags.BoolVarP(&options.quiet, "quiet", "q", false, "Only display IDs")
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flags.StringVar(&options.format, "format", "", "Pretty-print nodes using a Go template")
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flags.VarP(&options.filter, "filter", "f", "Filter output based on conditions provided")
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return cmd
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}
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func runList(dockerCli command.Cli, options listOptions) error {
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client := dockerCli.Client()
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ctx := context.Background()
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nodes, err := client.NodeList(
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ctx,
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types.NodeListOptions{Filters: options.filter.Value()})
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if err != nil {
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return err
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}
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info := types.Info{}
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if len(nodes) > 0 && !options.quiet {
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// only non-empty nodes and not quiet, should we call /info api
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info, err = client.Info(ctx)
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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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format := options.format
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if len(format) == 0 {
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format = formatter.TableFormatKey
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if len(dockerCli.ConfigFile().NodesFormat) > 0 && !options.quiet {
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format = dockerCli.ConfigFile().NodesFormat
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}
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}
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nodesCtx := formatter.Context{
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Output: dockerCli.Out(),
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Format: formatter.NewNodeFormat(format, options.quiet),
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}
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sort.Sort(byHostname(nodes))
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return formatter.NodeWrite(nodesCtx, nodes, info)
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}
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