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feat: alert when alert-emailer is not running #907

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feat: alert when alert-emailer is not running #907

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14 changes: 14 additions & 0 deletions nomad/prometheus.hcl
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Original file line number Diff line number Diff line change
Expand Up @@ -221,6 +221,20 @@ groups:
indeed.
dashboard_url: ${var.grafana_url}
alert_url: https://${var.prometheus_hostname}/alerts?search=alertmanager_down
- alert: AlertEmailer_Down
expr: absent(nomad_nomad_job_summary_running{task_group="alert-emailer"})
for: 5m
labels:
service: infra
severity: severe
annotations:
summary: alert-emailer service is down in ${var.dc}
description: >-
There are no Nomad clients running an alert-emailer task in ${var.dc}. This
means that alert emails are not being emitted from the datacenter which
will mean that SMOKE alerts will not be sent anywhere.
dashboard_url: ${var.grafana_url}
alert_url: https://${var.prometheus_hostname}/alerts?search=alertemailer_down
- alert: Canary_Down
expr: absent(nginx_connections_accepted{service="canary"})
for: 5m
Expand Down