3 commits

Author	SHA1	Message	Date
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	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