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2 commits

Author SHA1 Message Date
justin
7670608c1a fix(monitoring): render alertmanager.yml from template at deploy (fixes crash loop)
Alertmanager does not expand ${ENV} in its YAML, so the committed config with
${TELEGRAM_BOT_TOKEN}/${TELEGRAM_CHAT_ID} crash-looped it (line 24: cannot
unmarshal !!str `${TELEG...` into int64) - 11k+ restarts on prod, alerting dead.

- rename alertmanager.yml -> alertmanager.yml.template (keeps ${} placeholders)
- deploy.sh: envsubst the template into the (gitignored) alertmanager.yml from
  .env, scoped to the two TELEGRAM vars so the {{ }} Go-template message survives
- gitignore the rendered file (contains the bot token)
- warns if the vars are unset
2026-06-07 04:49:53 -05:00
justin
a4a5500bfc Add Prometheus + Grafana + Alertmanager monitoring stack
Full observability stack with Telegram alerting:

Components:
- Prometheus: metrics collection, 90-day retention
- Grafana: dashboards at monitoring.performancewest.net
- Alertmanager: routes alerts to Telegram bot
- node-exporter: OS metrics (CPU, RAM, disk, network)
- cAdvisor: container metrics (CPU, memory, restarts)
- postgres-exporter: PostgreSQL connection/query metrics
- nginx-exporter: request rate, 5xx errors, connections
- blackbox-exporter: HTTP/TCP endpoint probing + SSL cert checks

Alert rules:
- Service down (HTTP probe, TCP port, container missing)
- Container restart loops
- High CPU/memory/disk/load
- PostgreSQL down or high connections
- SSL cert expiring (14d warning, 3d critical)
- Slow HTTP responses, high 5xx rate

Blackbox probes all public endpoints:
  performancewest.net, api, dev, crm, lists, analytics,
  minio, crypto, pay

Telegram alerts: critical=1h repeat, warning=6h repeat,
  auto-resolve notifications

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-05-01 02:08:39 -05:00