File

mod_graceful_shutdown/mod_graceful_shutdown.lua @ 5979:d6a695abb33c

mod_ping_muc: Delay ping a configurable amount of time If a server is restarting, checking immediately before it has a chance to complete its restart and get ready would often fail, preventing the possibility of transparent restarts as supported by Prosody's mod_muc. Reconnecting immediately when a connection is closed for being idle, or because the remote server is trying to reclaim some resources, is also counter-productive as the connection may fail. Also, if there is some Internet routing problem affecting s2s, it may help to wait a bit before checking, in case the problem resolved itself in the mean time.
author Kim Alvefur <zash@zash.se>
date Sun, 11 Aug 2024 16:10:24 +0200
parent 4893:d4ce29c772ac
line wrap: on
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-- luacheck: ignore 122/prosody 113/prosody

local timer = require "util.timer";
local portman = require "core.portmanager";
local server = require "net.server";

module:set_global();
local orig_shutdown = prosody.shutdown;

local pause = module:get_option_number("shutdown_pause", 1);

function module.unload()
	prosody.shutdown = orig_shutdown;
end

prosody.shutdown = coroutine.wrap(function (reason, code)
	prosody.shutdown_reason = reason;
	prosody.shutdown_code = code;
	timer.add_task(pause, prosody.shutdown);
	coroutine.yield(true, "shutdown initiated");
	-- Close c2s ports, stop accepting new connections
	portman.deactivate("c2s");
	portman.deactivate("legacy_ssl");
	portman.deactivate("c2s_direct_tls");

	-- Close multiplexing ports to ensure c2s is not reachable via those either
	portman.deactivate("multiplex");
	portman.deactivate("multiplex_ssl");
	portman.deactivate("proxy"); -- mod_net_proxy

	-- Close all c2s sessions
	for _, sess in pairs(prosody.full_sessions) do
		sess:close{ condition = "system-shutdown", text = reason }
	end
	-- Wait for notifications to be sent
	coroutine.yield(pause);
	-- Event for everything else to shut down
	prosody.events.fire_event("server-stopping", {
		reason = reason;
		code = code;
	});
	-- And wait
	coroutine.yield(pause);
	-- And stop main event loop
	server.setquitting(true);
	-- And wait for death
	coroutine.yield(pause * 3);
	-- you came back? die zombie!
	os.exit(1);
end);