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## This Source Code Form is subject to the terms of the Mozilla Public
## License, v. 2.0. If a copy of the MPL was not distributed with this
## file, You can obtain one at https://mozilla.org/MPL/2.0/.
##
## Copyright (c) 2007-2022 VMware, Inc. or its affiliates. All rights reserved.
defmodule RabbitMQ.CLI.Diagnostics.Commands.ObserverCommand do
@behaviour RabbitMQ.CLI.CommandBehaviour
use RabbitMQ.CLI.DefaultOutput
def switches(), do: [interval: :integer]
def aliases(), do: [i: :interval]
def merge_defaults(args, opts) do
{args, Map.merge(%{interval: 5}, opts)}
end
use RabbitMQ.CLI.Core.AcceptsNoPositionalArguments
def run([], %{node: node_name, interval: interval}) do
case :observer_cli.start(node_name, [{:interval, interval * 1000}]) do
# See zhongwencool/observer_cli#54
{:badrpc, _} = err -> err
{:error, _} = err -> err
{:error, _, _} = err -> err
:ok -> {:ok, "Disconnected from #{node_name}."}
:quit -> {:ok, "Disconnected from #{node_name}."}
other -> other
end
end
def help_section(), do: :observability_and_health_checks
def description(), do: "Starts a CLI observer interface on the target node"
def usage, do: "observer [--interval <seconds>]"
def usage_additional() do
[
["--interval <seconds>", "Update interval to use, in seconds"]
]
end
def banner(_, %{node: node_name}) do
"Starting a CLI observer interface on node #{node_name}..."
end
end
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