96 lines
2 KiB
Go
96 lines
2 KiB
Go
package read
|
|
|
|
import (
|
|
"encoding/json"
|
|
"flag"
|
|
"fmt"
|
|
|
|
"github.com/hashicorp/consul/command/flags"
|
|
"github.com/mitchellh/cli"
|
|
)
|
|
|
|
func New(ui cli.Ui) *cmd {
|
|
c := &cmd{UI: ui}
|
|
c.init()
|
|
return c
|
|
}
|
|
|
|
type cmd struct {
|
|
UI cli.Ui
|
|
flags *flag.FlagSet
|
|
http *flags.HTTPFlags
|
|
help string
|
|
|
|
kind string
|
|
name string
|
|
}
|
|
|
|
func (c *cmd) init() {
|
|
// TODO(rb): needs a way to print the metadata so you know the modify index to use for 'config write -cas'
|
|
|
|
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
|
|
c.flags.StringVar(&c.kind, "kind", "", "The kind of configuration to read.")
|
|
c.flags.StringVar(&c.name, "name", "", "The name of configuration to read.")
|
|
c.http = &flags.HTTPFlags{}
|
|
flags.Merge(c.flags, c.http.ClientFlags())
|
|
flags.Merge(c.flags, c.http.ServerFlags())
|
|
c.help = flags.Usage(help, c.flags)
|
|
}
|
|
|
|
func (c *cmd) Run(args []string) int {
|
|
if err := c.flags.Parse(args); err != nil {
|
|
return 1
|
|
}
|
|
|
|
if c.kind == "" {
|
|
c.UI.Error("Must specify the -kind parameter")
|
|
return 1
|
|
}
|
|
|
|
if c.name == "" {
|
|
c.UI.Error("Must specify the -name parameter")
|
|
return 1
|
|
}
|
|
|
|
client, err := c.http.APIClient()
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error connect to Consul agent: %s", err))
|
|
return 1
|
|
}
|
|
|
|
entry, _, err := client.ConfigEntries().Get(c.kind, c.name, nil)
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error reading config entry %q / %q: %v", c.kind, c.name, err))
|
|
return 1
|
|
}
|
|
|
|
b, err := json.MarshalIndent(entry, "", " ")
|
|
if err != nil {
|
|
c.UI.Error("Failed to encode output data")
|
|
return 1
|
|
}
|
|
|
|
c.UI.Info(string(b))
|
|
return 0
|
|
}
|
|
|
|
func (c *cmd) Synopsis() string {
|
|
return synopsis
|
|
}
|
|
|
|
func (c *cmd) Help() string {
|
|
return flags.Usage(c.help, nil)
|
|
}
|
|
|
|
const synopsis = "Read a centralized config entry"
|
|
const help = `
|
|
Usage: consul config read [options] -kind <config kind> -name <config name>
|
|
|
|
Reads the config entry specified by the given kind and name and outputs its
|
|
JSON representation.
|
|
|
|
Example:
|
|
|
|
$ consul config read -kind proxy-defaults -name global
|
|
`
|