annotate mod_discoitems/mod_discoitems.lua @ 4578:d95fcde6e39d

mod_measure_lua: add openmetrics-spirited way to collect lua memory use In the spirit of separate collectors found in other Prometheus packages, this is a separate module to collect metrics related to the lua stack itself.
author Jonas Schäfer <jonas@wielicki.name>
date Sat, 29 May 2021 12:12:17 +0200
parents ae91c98b7e4c
children
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1 -- mod_discoitems.lua
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2 --
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3 -- In the config, you can add:
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4 --
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5 -- disco_items = {
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6 -- {"proxy.eu.jabber.org", "Jabber.org SOCKS5 service"};
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7 -- {"conference.jabber.org", "The Jabber.org MUC"};
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8 -- };
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9 --
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10
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11 local st = require "util.stanza";
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12
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13 local result_query = st.stanza("query", {xmlns="http://jabber.org/protocol/disco#items"});
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14 for _, item in ipairs(module:get_option("disco_items") or {}) do
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15 result_query:tag("item", {jid=item[1], name=item[2]}):up();
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16 end
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17
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18 module:hook('iq/host/http://jabber.org/protocol/disco#items:query', function(event)
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19 local stanza = event.stanza;
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20 local query = stanza.tags[1];
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21 if stanza.attr.type == 'get' and not query.attr.node then
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22 event.origin.send(st.reply(stanza):add_child(result_query));
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23 return true;
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24 end
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25 end, 100);