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annotate mod_host_status_check/mod_host_status_check.lua @ 5668:ecfd7aece33b

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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>
date Fri, 06 Oct 2023 18:34:39 +0200
parents 3d80f8dba886
children
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5fcf9d558250 Three new modules: mod_host_status_check, mod_host_status_heartbeat and mod_http_host_status_check
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1 local time = require "socket".gettime;
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3 local heartbeats = module:shared("/*/host_status_check/heartbeats");
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4 local connection_events = module:shared("/*/host_status_check/connection_events");
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6 if prosody.hosts[module.host].type == "component" and module:get_option_string("component_module") == "component" then
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7 module:hook("component-authenticated", function ()
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8 connection_events[module.host] = { connected = true; timestamp = time() };
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9 end);
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11 -- Note: this event is not in 0.9, and requires a recent 0.10 or trunk build
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12 module:hook("component-disconnected", function ()
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13 connection_events[module.host] = { connected = false; timestamp = time() };
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14 end);
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16 module:hook("stanza/xmpp:prosody.im/heartbeat:heartbeat", function ()
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17 heartbeats[module.host] = time();
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18 return true;
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19 end);
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20 else
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21 connection_events[module.host] = { connected = true, timestamp = time() };
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22 end
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24 function module.unload()
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25 connection_events[module.host] = { connected = false, timestamp = time() };
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26 heartbeats[module.host] = nil;
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27 end