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mod_pubsub_alertmanager/README.md

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mod_pubsub_alertmanager/README.md @ 5418:f2c7bb3af600

mod_http_oauth2: Add role selector to consent page List includes all roles available to the user, if more than one. Defaults to either the first role in the scope string or the users primary role. Earlier draft listed all roles, but having options that can't be selected is bad UX and the entire list of all roles on the server could be long, and perhaps even sensitive. Allows e.g. picking a role with fewer permissions than what might otherwise have been selected. UX wise, doing this with more checkboxes or possibly radio buttons would have been confusion and/or looked messier. Fixes the previous situation where unselecting a role would default to the primary role, which could be more permissions than requested.
author Kim Alvefur <zash@zash.se>
date Fri, 05 May 2023 01:23:13 +0200
parent 4624:eba7e68120d8
child 5485:67190744b1eb
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1 ---
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2 labels:
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3 - 'Stage-Alpha'
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4 summary: Alertmanager webhook receiver for pubsub
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5 ---
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6
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7 # Introduction
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8
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9 This module lets
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10 [Alertmanager](https://prometheus.io/docs/alerting/latest/alertmanager/)
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11 publish alerts to [pubsub][doc:pubsub] via
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12 [webhooks](https://prometheus.io/docs/alerting/latest/configuration/#webhook_config).
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13
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14 # Setup
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15
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16 The relevant pubsub nodes must be created and configured somehow.
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17 Because the request IP address is used to publish, the `publisher`
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18 affiliation should be given to the IP address Alertmanager sends
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19 webhooks from.
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20
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21 # Configuration
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22
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23 ## Prometheus
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24
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25 A Prometheus `rule_files` might contain something along these lines:
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26
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27 ``` yaml
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28 groups:
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29 - name: Stuff
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30 rules:
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31 - alert: Down
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32 expr: up == 0
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33 for: 5m
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34 annotations:
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35 title: 'Stuff is down!'
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36 labels:
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37 severity: 'critical'
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38 ```
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39
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40 ## Alertmanager
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41 On the Alertmanager site the webhook configuration may look something
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42 like this:
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43
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44 ``` yaml
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45 receivers:
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46 - name: pubsub
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47 webhook_configs:
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48 - url: http://pubsub.localhost:5280/pubsub_alertmanager
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49 ```
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50
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51 And then finally some Alertmanager routes would point at that receiver:
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52
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53 ``` yaml
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54 route:
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55 receiver: pubsub
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56 ```
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57
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58 ## Prosody
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59
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60 On the Prosody side, apart from creating and configuring the node(s)
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61 that will be used, configure your pubsub service like this:
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62
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63 ``` lua
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64 Component "pubsub.example.com" "pubsub"
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65 modules_enabled = {
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66 "pubsub_alertmanager",
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67 }
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68
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69 -- optional extra settings:
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70 alertmanager_body_template = [[
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71 *ALARM!* {annotations.title?Alert} is {status}
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72 Since {startsAt}{endsAt& until {endsAt}}
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73 Labels: {labels%
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74 {idx}: {item}}
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75 Annotations: {annotations%
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76 {idx}: {item}}
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77 ]]
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78
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79 alertmanager_node_template = "alerts/{alert.labels.severity}"
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80 ```
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81
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82 If no node template is given, either an optional part after
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83 "pubsub_alertmanager" in the HTTP path is used as node, or the string
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84 "alerts". Here, an alerts would be published to different nodes based on
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85 the 'severity' label, so e.g. `alerts/critical` in this example.
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86
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87 ## All Options
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88
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89 Available configuration options:
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90
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91 `alertmanager_body_template`
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92 : Template for the textual representation of alerts.
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93
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94 `alertmanager_node_template`
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95 : Template for the pubsub node name, defaults to `"{path?alerts}"`