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6 commits

Author SHA1 Message Date
justin
0a31313956 Fix nginx-exporter: back to bridge network with host.docker.internal 
host network mode prevented Prometheus from reaching the exporter.
Switched back to bridge with extra_hosts + explicit port mapping.
Added timeout flag to prevent hanging on stub_status fetch.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-05-01 03:21:27 -05:00
justin
433827138b Fix nginx-exporter: use host network mode for direct stub_status access 
nginx-exporter couldn't reach host nginx via host.docker.internal
(connection timeout). Switch to network_mode: host so it can access
127.0.0.1:8888 directly. Prometheus scrapes via host.docker.internal
with extra_hosts mapping.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-05-01 03:19:57 -05:00
justin
27cc925c4d Fix nginx-exporter port and add alertmanager scrape target 
- nginx stub_status moved to port 8888 (port 80 was being caught
  by other server blocks and returning 301)
- nginx-exporter updated to scrape :8888
- Added alertmanager scrape job to Prometheus config (was missing,
  so alertmanager dashboard had no data)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-05-01 03:17:31 -05:00
justin
b298ec12b7 Remove fixed uid from Grafana datasource provisioning — Grafana 13 rejects it on fresh boot 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-05-01 03:09:10 -05:00
justin
fc324cf7b9 Fix Grafana datasource UID to match dashboard references 
Community dashboards reference datasource uid=prometheus but the
auto-generated UID was random. Pin to uid=prometheus for compatibility.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-05-01 03:07:03 -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