File

mod_audit_status/mod_audit_status.lua @ 5690:9bcd257dea4e

mod_http_health: Provide a health check HTTP endpoint Someone in the chat asked about a health check endpoint, which reminded me of mod_http_status, which was simplified to produce this module.
author Kim Alvefur <zash@zash.se>
date Fri, 06 Oct 2023 16:49:57 +0200
parent 5353:14b6397cd6de
child 5766:9944c6c3e914
line wrap: on
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module:depends("audit");

local st = require "util.stanza";

-- Suppress warnings about module:audit()
-- luacheck: ignore 143/module

local heartbeat_interval = module:get_option_number("audit_status_heartbeat_interval", 60);

local store = module:open_store(nil, "keyval+");

module:hook_global("server-started", function ()
	local recorded_status = store:get();
	if recorded_status and recorded_status.status == "started" then
		module:audit(nil, "server-crashed", { timestamp = recorded_status.heartbeat });
	end
	module:audit(nil, "server-started");
	store:set_key(nil, "status", "started");
end);

module:hook_global("server-stopped", function ()
	module:audit(nil, "server-stopped", {
		custom = {
			prosody.shutdown_reason and st.stanza("note"):text(prosody.shutdown_reason);
		};
	});
	store:set_key(nil, "status", "stopped");
end);

if heartbeat_interval then
	module:add_timer(0, function ()
		store:set_key(nil, "heartbeat", os.time());
		return heartbeat_interval;
	end);
end