add ilm management support (#43)

cmd/datastream.go

@@ -197,3 +197,24 @@ func DatastreamRollover(conf *cfg.Config) *cli.Command {
 		},
 	}
 }
+
+func DatastreamIlm(conf *cfg.Config) *cli.Command {
+	return &cli.Command{
+		Name:      "ilm",
+		Usage:     "show ilm status",
+		UsageText: "ds ilm <name>",
+
+		ShellComplete: func(ctx context.Context, cmd *cli.Command) {
+			complete(cmd, Cdatastream)
+		},
+
+		Action: func(ctx context.Context, cmd *cli.Command) error {
+			ds := cmd.Args().Get(0)
+			if ds == "" {
+				return errors.New("no ds name specified")
+			}
+
+			return es.IlmExplain(conf, ds)
+		},
+	}
+}