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annotate mod_s2sout_override/README.md @ 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
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1 ---
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2 summary: Override s2s connection targets
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3 ---
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4
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5 This module replaces [mod_s2soutinjection] and uses more modern and
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6 reliable methods for overriding connection targets.
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7
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8 # Configuration
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9
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10 Enable the module as usual, then specify a map of XMPP remote hostnames
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11 to URIs like `"tcp://host.example:port"`, to have Prosody connect there
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12 instead of doing normal DNS SRV resolution.
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13
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14 Currently supported schemes are `tcp://` and `tls://`. A future version
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15 could support more methods including alternate SRV lookup targets or
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16 even UNIX sockets.
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17
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18 URIs with IP addresses like `tcp://127.0.0.1:9999` will bypass A/AAAA
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19 DNS lookups.
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21 The special target `"*"` may be used to redirect all servers that don't have
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22 an exact match.
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23
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24 One-level wildcards like `"*.example.net"` also work.
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25
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26 Standard DNS SRV resolution can be restored by specifying a truthy value.
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27
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28 ```lua
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29 -- Global section
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30 modules_enabled = {
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31 -- other global modules
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32 "s2sout_override";
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33 }
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34
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35 s2sout_override = {
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36 ["example.com"] = "tcp://other.host.example:5299";
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37 ["xmpp.example.net"] = "tcp://localhost:5999";
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38 ["secure.example"] = "tls://127.0.0.1:5270";
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39 ["*.allthese.example"] = = "tcp://198.51.100.123:9999";
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40
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41 -- catch-all:
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42 ["*"] = "tls://127.0.0.1:5370";
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43 -- bypass the catch-all, use standard DNS SRV:
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44 ["jabber.example"] = true;
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45 }
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46 ```
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47
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48 # Compatibility
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49
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50 Prosody version status
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51 --------------- ----------
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52 0.12.4 Will work
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53 0.12.3 Will not work
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54 0.11 Will not work