99 lines
2.0 KiB
Go
99 lines
2.0 KiB
Go
package read
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import (
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"encoding/json"
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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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help string
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kind string
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name string
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}
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func (c *cmd) init() {
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// TODO(rb): needs a way to print the metadata so you know the modify index to use for 'config write -cas'
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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c.flags.StringVar(&c.kind, "kind", "", "The kind of configuration to read.")
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c.flags.StringVar(&c.name, "name", "", "The name of configuration to read.")
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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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flags.Merge(c.flags, c.http.MultiTenancyFlags())
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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 c.kind == "" {
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c.UI.Error("Must specify the -kind parameter")
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return 1
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}
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if c.name == "" {
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c.UI.Error("Must specify the -name parameter")
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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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entry, _, err := client.ConfigEntries().Get(c.kind, c.name, nil)
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error reading config entry %s/%s: %v", c.kind, c.name, err))
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return 1
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}
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b, err := json.MarshalIndent(entry, "", " ")
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if err != nil {
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c.UI.Error("Failed to encode output data")
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return 1
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}
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c.UI.Info(string(b))
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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 = "Read a centralized config entry"
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help = `
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Usage: consul config read [options] -kind <config kind> -name <config name>
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Reads the config entry specified by the given kind and name and outputs its
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JSON representation.
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Example:
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$ consul config read -kind proxy-defaults -name global
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`
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)
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