annotate mod_host_status_check/mod_host_status_check.lua @ 4776:13e913471b75

mod_http_admin_api: Ensure freshness of metrics when in manual mode When in manual collection mode, as recommended for Prometheus, collection needs to be triggered manually, or they would be stale, possibly dating from the start of the server. This might vary per metric depending on how and when the metrics are gathered.
author Kim Alvefur <zash@zash.se>
date Thu, 18 Nov 2021 19:26:07 +0100
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
5fcf9d558250 Three new modules: mod_host_status_check, mod_host_status_heartbeat and mod_http_host_status_check
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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