1## This Source Code Form is subject to the terms of the Mozilla Public
2## License, v. 2.0. If a copy of the MPL was not distributed with this
3## file, You can obtain one at https://mozilla.org/MPL/2.0/.
4##
5## Copyright (c) 2007-2021 VMware, Inc. or its affiliates.  All rights reserved.
6
7defmodule RabbitMQ.CLI.Diagnostics.Commands.DiscoverPeersCommand do
8  @behaviour RabbitMQ.CLI.CommandBehaviour
9
10  use RabbitMQ.CLI.Core.AcceptsDefaultSwitchesAndTimeout
11  use RabbitMQ.CLI.Core.MergesNoDefaults
12  use RabbitMQ.CLI.Core.AcceptsNoPositionalArguments
13  use RabbitMQ.CLI.Core.RequiresRabbitAppRunning
14
15  def run([], %{node: node_name, timeout: timeout}) do
16    :rabbit_misc.rpc_call(node_name, :rabbit_peer_discovery, :discover_cluster_nodes, [], timeout)
17  end
18
19  def output({:ok, {[], _}}, _options) do
20    {:ok, "No peers discovered"}
21  end
22
23  def output({:ok, {nodes, _}}, _options) do
24    {:ok, nodes}
25  end
26
27  use RabbitMQ.CLI.DefaultOutput
28
29  def help_section(), do: :observability_and_health_checks
30
31  def description(), do: "Performs peer discovery and lists discovered nodes, if any"
32
33  def usage, do: "discover_peers"
34
35  def banner(_, _), do: "Discovering peers nodes ..."
36end
37