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 -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 `