# Alertmanager config — cast04  (updated 2026-06-26)
# Track A SPEC: ac-docs/specs/20260626_cluster_monitoring.md §7.4
#
# Outbound notifications are handled by alert-notifier.py (localhost:9099),
# which shortens URLs via s.f0xx.org, generates QR codes, and sends
# HTML email + Telegram with the QR image attached.

global:
  # No direct SMTP here — alert-notifier handles email delivery.
  # smtp_* kept as comment for reference:
  # smtp_smarthost: 'smtp.gmail.com:587'
  # smtp_auth_username: 'bestcastr@gmail.com'
  # smtp_auth_password: 'wnxv caln tcmt ldpn'

templates:
  - '/etc/alertmanager/templates/*.tmpl'

route:
  group_by: ['alertname', 'instance', 'severity']
  group_wait:      30s
  group_interval:  5m
  repeat_interval: 4h
  receiver: 'webhook-default'

  routes:
    - match:
        severity: critical
      receiver: 'webhook-critical'
      group_wait: 10s
      repeat_interval: 1h

    - match:
        severity: warning
      receiver: 'webhook-default'
      repeat_interval: 6h

    - match:
        alertname: Watchdog
      receiver: 'null'

receivers:
  - name: 'null'

  - name: 'webhook-default'
    webhook_configs:
      - url: 'http://127.0.0.1:9099/webhook'
        send_resolved: true
        max_alerts: 10

  - name: 'webhook-critical'
    webhook_configs:
      - url: 'http://127.0.0.1:9099/webhook'
        send_resolved: true
        max_alerts: 10

inhibit_rules:
  - source_match:
      severity: 'critical'
    target_match:
      severity: 'warning'
    equal: ['instance', 'alertname']