140 lines
3.1 KiB
Go
140 lines
3.1 KiB
Go
package list
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"sort"
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"strings"
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"github.com/mitchellh/cli"
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"github.com/ryanuber/columnize"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/consul/command/flags"
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"github.com/hashicorp/consul/command/peering"
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)
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func New(ui cli.Ui) *cmd {
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c := &cmd{UI: ui}
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c.init()
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return c
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}
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type cmd struct {
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UI cli.Ui
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flags *flag.FlagSet
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http *flags.HTTPFlags
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help string
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format string
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}
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func (c *cmd) init() {
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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c.flags.StringVar(
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&c.format,
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"format",
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peering.PeeringFormatPretty,
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fmt.Sprintf("Output format {%s} (default: %s)", strings.Join(peering.GetSupportedFormats(), "|"), peering.PeeringFormatPretty),
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)
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c.http = &flags.HTTPFlags{}
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flags.Merge(c.flags, c.http.ClientFlags())
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flags.Merge(c.flags, c.http.PartitionFlag())
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c.help = flags.Usage(help, c.flags)
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}
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func (c *cmd) Run(args []string) int {
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if err := c.flags.Parse(args); err != nil {
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return 1
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}
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if !peering.FormatIsValid(c.format) {
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c.UI.Error(fmt.Sprintf("Invalid format, valid formats are {%s}", strings.Join(peering.GetSupportedFormats(), "|")))
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return 1
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}
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client, err := c.http.APIClient()
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error connect to Consul agent: %s", err))
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return 1
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}
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peerings := client.Peerings()
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res, _, err := peerings.List(context.Background(), &api.QueryOptions{})
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if err != nil {
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c.UI.Error("Error listing peerings")
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return 1
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}
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list := peeringList(res)
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sort.Sort(list)
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if c.format == peering.PeeringFormatJSON {
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output, err := json.Marshal(list)
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error marshalling JSON: %s", err))
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return 1
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}
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c.UI.Output(string(output))
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return 0
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}
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if len(res) == 0 {
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c.UI.Info(fmt.Sprintf("There are no peering connections."))
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return 0
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}
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result := make([]string, 0, len(list))
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header := "Name\x1fState\x1fImported Svcs\x1fExported Svcs\x1fMeta"
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result = append(result, header)
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for _, peer := range list {
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metaPairs := make([]string, 0, len(peer.Meta))
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for k, v := range peer.Meta {
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metaPairs = append(metaPairs, fmt.Sprintf("%s=%s", k, v))
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}
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meta := strings.Join(metaPairs, ",")
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line := fmt.Sprintf("%s\x1f%s\x1f%d\x1f%d\x1f%s",
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peer.Name, peer.State, peer.ImportedServiceCount, peer.ExportedServiceCount, meta)
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result = append(result, line)
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}
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output := columnize.Format(result, &columnize.Config{Delim: string([]byte{0x1f})})
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c.UI.Output(output)
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return 0
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}
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func (c *cmd) Synopsis() string {
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return synopsis
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}
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func (c *cmd) Help() string {
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return flags.Usage(c.help, nil)
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}
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const (
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synopsis = "List peering connections"
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help = `
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Usage: consul peering list [options]
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List all peering connections. The results will be filtered according
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to ACL policy configuration.
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Example:
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$ consul peering list
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`
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)
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// peeringList applies sort.Interface to a list of peering connections for sorting by name.
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type peeringList []*api.Peering
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func (d peeringList) Len() int { return len(d) }
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func (d peeringList) Less(i, j int) bool { return d[i].Name < d[j].Name }
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func (d peeringList) Swap(i, j int) { d[i], d[j] = d[j], d[i] }
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