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mod_graceful_shutdown/mod_graceful_shutdown.lua @ 5691:ecfd7aece33b
mod_measure_modules: Report module statuses via OpenMetrics
Someone in the chat asked about a health check endpoint, which reminded
me of mod_http_status, which provides access to module statuses with
full details. After that, this idea came about, which seems natural.
As noted in the README, it could be used to monitor that critical
modules are in fact loaded correctly.
As more modules use the status API, the more useful this module and
mod_http_status becomes.
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 06 Oct 2023 18:34:39 +0200 |
parent | 4893:d4ce29c772ac |
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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);