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annotate mod_discodot/mod_discodot.tl @ 5853:97c9b76867ca

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mod_log_ringbuffer: Detach event handlers on logging reload (thanks Menel) Otherwise the global event handlers accumulate, one added each time logging is reoladed, and each invocation of the signal or event triggers one dump of each created ringbuffer.
author Kim Alvefur <zash@zash.se>
date Sun, 03 Mar 2024 11:23:40 +0100
parents 253df0798996
children
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253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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1 local cm = require"core.configmanager";
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2
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3 local function format_host(host:string, conf:{string:any}) : string
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4 if host == "*" then
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5 return "Global";
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6 end
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7 local component_module = conf["component_module"];
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8 if component_module is string then
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9 if component_module == "component" then
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10 return string.format("Component %q", host);
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11 else
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12 return string.format("Component %q %q", host, component_module);
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13 end
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14 else
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15 return string.format("VirtualHost %q", host);
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16 end
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17 end
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18
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19 function module.command(arg : { string }) : integer
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20
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21 local config : { string : { string : any } } = cm.getconfig();
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22
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23 print"digraph \"prosody\" {"
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24 for host, conf in pairs(config) do
253df0798996 mod_discodot: Print a graph of service discovery
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25 print(string.format("%q [label=%q]", host, format_host(host, conf)));
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26 local parent = host:match("%.(.*)");
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27 if parent and rawget(config, parent) then
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28 print(string.format("%q -> %q", parent, host));
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29 end
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Kim Alvefur <zash@zash.se>
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30 local disco_items = conf["disco_items"]
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31 if disco_items is { { string, string } } then
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32 for _, pair in ipairs(disco_items) do
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33 print(string.format("%q -> %q", host, pair[1]));
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34 end
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35 end
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36
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37 end
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38
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39 print"}"
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40
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41 return 0
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42 end