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Merged
sandeepsukhani merged 4 commits into from
Apr 22, 2020
Merged

support for generating slack receivers with buttons for alerts #256

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a9f13f6
support for generating slack receivers with buttons for alerts
sandeepsukhani Apr 20, 2020
3ac303c
moved slack alert title and text to template and added link for sourc…
sandeepsukhani Apr 21, 2020
71095f2
add left out change
sandeepsukhani Apr 21, 2020
06a6a42
using slack alert title and text template directly while building rec…
sandeepsukhani Apr 22, 2020
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55 changes: 47 additions & 8 deletions prometheus-ksonnet/lib/alertmanager.libsonnet
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Original file line number Diff line number Diff line change
Expand Up @@ -17,20 +17,58 @@
]
else [],

slackAlertTitle:: '[{{ .Status | toUpper }}{{ if eq .Status "firing" }}:{{ .Alerts.Firing | len }}{{ end }}] {{ .GroupLabels.cluster }}: {{ .GroupLabels.alertname }} ({{ .GroupLabels.namespace }})',
slackAlertText:: |||
{{ .CommonAnnotations.summary }}
{{ if .Alerts.Firing | len }}Firing alerts:
{{ range .Alerts.Firing }}- {{ .Annotations.message }}{{ .Annotations.description }}
{{ end }}{{ end }}{{ if .Alerts.Resolved | len }}Resolved alerts:
{{ range .Alerts.Resolved }}- {{ .Annotations.message }}{{ .Annotations.description }}
{{ end }}{{ end }}
|||,

build_slack_receiver(name, slack_channel)::
{
name: name,
slack_configs: [{
api_url: $._config.slack_url,
channel: slack_channel,
send_resolved: true,
title: $.slackAlertTitle,
text: $.slackAlertText,
actions: [
{
type: 'button',
text: 'Runbook :green_book:',
url: '{{ (index .Alerts 0).Annotations.runbook_url }}',
},
{
type: 'button',
text: 'Source :information_source:',
url: '{{ (index .Alerts 0).GeneratorURL }}',
},
{
type: 'button',
text: 'Silence :no_bell:',
url: '{{ template "__alert_silence_link" . }}',
},
],
}],
},

alertmanager_config:: {
templates: ['/etc/alertmanager/*.tmpl'],
templates: [
'/etc/alertmanager/*.tmpl',
'/etc/alertmanager/config/templates.tmpl',
],
route: {
group_by: ['alertname'],
receiver: 'slack',
},

receivers: [{
name: 'slack',
slack_configs: [{
api_url: $._config.slack_url,
channel: $._config.slack_channel,
}],
}],
receivers: [
$.build_slack_receiver('slack', $._config.slack_channel),
],
},

local configMap = $.core.v1.configMap,
Expand All @@ -40,6 +78,7 @@
configMap.new('alertmanager-config') +
configMap.withData({
'alertmanager.yml': $.util.manifestYaml($.alertmanager_config),
'templates.tmpl': (importstr 'files/alertmanager_config.tmpl'),
})
else {},

Expand Down
12 changes: 12 additions & 0 deletions prometheus-ksonnet/lib/files/alertmanager_config.tmpl
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
# This builds the silence URL. We exclude the alertname in the range
# to avoid the issue of having trailing comma separator (%2C) at the end
# of the generated URL
{{ define "__alert_silence_link" -}}
{{ .ExternalURL }}/#/silences/new?filter=%7B
{{- range .CommonLabels.SortedPairs -}}
{{- if ne .Name "alertname" -}}
{{- .Name }}%3D"{{- .Value -}}"%2C%20
{{- end -}}
{{- end -}}
alertname%3D"{{ .CommonLabels.alertname }}"%7D
{{- end }}