annotate mod_log_json/README.markdown @ 5469:03f393d572fe

mod_http_oauth2: Add human-readable error messages
author Kim Alvefur <zash@zash.se>
date Thu, 18 May 2023 13:03:09 +0200
parents 4356088ad675
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3735
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 ---
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 summary: JSON Log Sink
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 ---
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 Conifiguration
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6 ==============
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7
3745
e43a82ddde12 mod_log_json/README: Add a sentence about the first example
Kim Alvefur <zash@zash.se>
parents: 3736
diff changeset
8 Here we log to `/var/log/prosody/prosody.json`:
e43a82ddde12 mod_log_json/README: Add a sentence about the first example
Kim Alvefur <zash@zash.se>
parents: 3736
diff changeset
9
3735
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 ``` {.lua}
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 log = {
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 -- your other log sinks
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 info = "/var/log/prosody/prosody.log"
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 -- add this:
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15 { to = "json", filename = "/var/log/prosody/prosody.json" };
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16 }
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 ```
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18
3746
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
19 ## UDP
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
20
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
21 Alternatively, it can send logs via UDP:
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
22
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
23 ```lua
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
24 log = {
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
25 { to = "json", udp_host = "10.1.2.3", udp_port = "9999" };
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
26 }
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
27 ```
bc865568ff02 mod_log_json: Add UDP support
Kim Alvefur <zash@zash.se>
parents: 3745
diff changeset
28
3735
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29 Format
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 ======
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 JSON log files consist of a series of `\n`-separated JSON objects,
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 suitable for mangling with tools like
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34 [`jq`](https://stedolan.github.io/jq/).
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
35
3736
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
36 Example (with whitespace and indentation for readability):
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
37
3735
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 ``` {.json}
3736
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
39 {
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
40 "args" : [],
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
41 "datetime" : "2019-11-03T13:38:28Z",
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
42 "level" : "info",
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
43 "message" : "Client connected",
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
44 "source" : "c2s55f267f5b9d0"
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
45 }
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
46 {
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
47 "args" : [
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
48 "user@example.net"
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
49 ],
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
50 "datetime" : "2019-11-03T13:38:28Z",
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
51 "level" : "debug",
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
52 "message" : "load_roster: asked for: %s",
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
53 "source" : "rostermanager"
3784bbcbb8ff mod_log_json: Prettify JSON for readability
Kim Alvefur <zash@zash.se>
parents: 3735
diff changeset
54 }
3735
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
55 ```
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
56
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
57 `datetime`
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
58 : [XEP-0082]-formatted timestamp.
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
59
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
60 `source`
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
61 : Log source, usually a module or a connected session.
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
62
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
63 `level`
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
64 : `debug`, `info`, `warn` or `error`
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
65
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
66 `message`
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
67 : The log message in `printf` format. Combine with `args` to get the
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
68 final message.
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
69
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
70 `args`
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
71 : Array of extra arguments, corresponding to `printf`-style `%s`
06b640473cda mod_log_json: Add a README
Kim Alvefur <zash@zash.se>
parents:
diff changeset
72 formatting in the `message`.
4462
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
73
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
74 Formatted message
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
75 -----------------
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
76
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
77 If desired, at the obvious expense of performance, the formatted version of
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
78 the string can be included in the JSON object by specifying the `formatted_as`
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
79 key in the logger config:
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
80
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
81 ``` {.lua}
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
82 log = {
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
83 -- ... other sinks ...
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
84 { to = "json", formatted_as = "msg_formatted", filename = "/var/log/prosody/prosody.json" };
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
85 }
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
86
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
87 ```
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
88
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
89 This will expose the formatted message in the JSON as separate `msg_formatted`
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
90 key. It is possible to override existing keys using this (for example, the
4356088ad675 mod_log_json: allow logging of formatted message
Jonas Schäfer <jonas@wielicki.name>
parents: 3746
diff changeset
91 `message` key), but not advisible.