mirror of https://github.com/status-im/consul.git
80 lines
1.7 KiB
Go
80 lines
1.7 KiB
Go
package catlistdc
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import (
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"flag"
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"fmt"
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"github.com/hashicorp/consul/command/flags"
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"github.com/mitchellh/cli"
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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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usage 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.http = &flags.HTTPFlags{}
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flags.Merge(c.flags, c.http.ClientFlags())
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flags.Merge(c.flags, c.http.ServerFlags())
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c.usage = flags.Usage(usage, c.flags, c.http.ClientFlags(), c.http.ServerFlags())
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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 l := len(c.flags.Args()); l > 0 {
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c.UI.Error(fmt.Sprintf("Too many arguments (expected 0, got %d)", l))
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return 1
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}
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// Create and test the HTTP client
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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 connecting to Consul agent: %s", err))
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return 1
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}
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dcs, err := client.Catalog().Datacenters()
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error listing datacenters: %s", err))
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}
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for _, dc := range dcs {
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c.UI.Info(dc)
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}
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return 0
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}
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func (c *cmd) Synopsis() string {
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return "Lists all known datacenters"
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}
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func (c *cmd) Help() string {
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return c.usage
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}
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const usage = `Usage: consul catalog datacenters [options]
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Retrieves the list of all known datacenters. This datacenters are sorted in
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ascending order based on the estimated median round trip time from the servers
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in this datacenter to the servers in the other datacenters.
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To retrieve the list of datacenters:
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$ consul catalog datacenters
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For a full list of options and examples, please see the Consul documentation.`
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