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feat(monitoring): Grafana alerting → Telegram for homelab

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- Secret grafana-telegram: bot token + chat ID (env var injection)
- ConfigMap grafana-alerting: provisioning files for contact point,
  notification policy, and 4 alert rules
  * Pod CrashLoopBackOff (for: 1m, noData: OK)
  * Disk > 80% on non-tmpfs filesystems (for: 5m)
  * RAM > 85% (for: 5m)
  * Pod Failed/Unknown (for: 3m, noData: OK)
- Deployment: TELEGRAM_* env vars from secret + alerting volume mount

Token interpolated via ${TELEGRAM_BOT_TOKEN} in provisioning YAML.
This commit is contained in:
chemavx
2026-04-26 15:25:07 +00:00
parent 5df2e9746a
commit 94c059ccb9
3 changed files with 203 additions and 0 deletions
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monitoring/secret-grafana-telegram.yaml
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apiVersion: v1
kind: Secret
metadata:
name: grafana-telegram
namespace: monitoring
type: Opaque
data:
TELEGRAM_BOT_TOKEN: ODYxMTkxMzgwMjpBQUZsckZ0YzB2WUlTT2xpT19XOEI0Yy1XMXVlMGhHOUZpbw==
TELEGRAM_CHAT_ID: NTEzODQwNzY2Ng==