Mercurial > prosody-modules
annotate mod_log_json/README.markdown @ 5536:96dec7681af8
mod_firewall: Update user marks to store instantly via map store
The original approach was to keep marks in memory only, and persist them at
shutdown. That saves I/O, at the cost of potentially losing marks on an
unclean shutdown.
This change persists marks instantly, which may have some performance overhead
but should be more "correct".
It also splits the marking/unmarking into an event which may be watched or
even fired by other modules.
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 08 Jun 2023 16:20:42 +0100 |
parents | 4356088ad675 |
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3735 | 1 --- |
2 summary: JSON Log Sink | |
3 --- | |
4 | |
5 Conifiguration | |
6 ============== | |
7 | |
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8 Here we log to `/var/log/prosody/prosody.json`: |
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9 |
3735 | 10 ``` {.lua} |
11 log = { | |
12 -- your other log sinks | |
13 info = "/var/log/prosody/prosody.log" | |
14 -- add this: | |
15 { to = "json", filename = "/var/log/prosody/prosody.json" }; | |
16 } | |
17 ``` | |
18 | |
3746 | 19 ## UDP |
20 | |
21 Alternatively, it can send logs via UDP: | |
22 | |
23 ```lua | |
24 log = { | |
25 { to = "json", udp_host = "10.1.2.3", udp_port = "9999" }; | |
26 } | |
27 ``` | |
28 | |
3735 | 29 Format |
30 ====== | |
31 | |
32 JSON log files consist of a series of `\n`-separated JSON objects, | |
33 suitable for mangling with tools like | |
34 [`jq`](https://stedolan.github.io/jq/). | |
35 | |
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36 Example (with whitespace and indentation for readability): |
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37 |
3735 | 38 ``` {.json} |
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39 { |
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40 "args" : [], |
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41 "datetime" : "2019-11-03T13:38:28Z", |
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42 "level" : "info", |
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43 "message" : "Client connected", |
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44 "source" : "c2s55f267f5b9d0" |
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45 } |
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46 { |
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47 "args" : [ |
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48 "user@example.net" |
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49 ], |
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50 "datetime" : "2019-11-03T13:38:28Z", |
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51 "level" : "debug", |
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52 "message" : "load_roster: asked for: %s", |
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53 "source" : "rostermanager" |
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54 } |
3735 | 55 ``` |
56 | |
57 `datetime` | |
58 : [XEP-0082]-formatted timestamp. | |
59 | |
60 `source` | |
61 : Log source, usually a module or a connected session. | |
62 | |
63 `level` | |
64 : `debug`, `info`, `warn` or `error` | |
65 | |
66 `message` | |
67 : The log message in `printf` format. Combine with `args` to get the | |
68 final message. | |
69 | |
70 `args` | |
71 : Array of extra arguments, corresponding to `printf`-style `%s` | |
72 formatting in the `message`. | |
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73 |
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74 Formatted message |
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75 ----------------- |
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76 |
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77 If desired, at the obvious expense of performance, the formatted version of |
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78 the string can be included in the JSON object by specifying the `formatted_as` |
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79 key in the logger config: |
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80 |
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81 ``` {.lua} |
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82 log = { |
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83 -- ... other sinks ... |
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84 { to = "json", formatted_as = "msg_formatted", filename = "/var/log/prosody/prosody.json" }; |
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85 } |
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86 |
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87 ``` |
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88 |
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89 This will expose the formatted message in the JSON as separate `msg_formatted` |
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90 key. It is possible to override existing keys using this (for example, the |
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91 `message` key), but not advisible. |