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You cannot fix what you cannot see. Hellenic Technologies deploys a layered monitoring stack for every managed environment that covers infrastructure metrics, application performance, uptime availability, and security events. Our monitoring philosophy is alert on symptoms, not causes — page on high error rates and latency, not on CPU spikes that have no user impact. The infrastructure monitoring stack is built on Prometheus and Grafana. Prometheus scrapes metrics from node_exporter on every server, kube-state-metrics and cAdvisor in Kubernetes clusters, and application-specific exporters for databases (postgres_exporter, mysqld_exporter), caches (redis_exporter), and message queues. Grafana provides dashboards for infrastructure overview, per-service SLIs, and capacity planning. Alertmanager routes alerts to PagerDuty, Slack, or email based on severity and time of day. Uptime monitoring provides an external view of availability from multiple geographic regions. Uptime Robot or BetterUptime checks HTTP endpoints every minute from regions including Frankfurt, New York, and Singapore — providing early warning of regional network issues that internal monitoring would miss. Status pages powered by these checks give clients and their end users transparency about current system health and historical uptime statistics. Monitoring stack services:
  • Prometheus deployment with service discovery and scrape configuration
  • Grafana dashboards for infrastructure, application, and business metrics
  • Alertmanager configuration with PagerDuty, Slack, and email routing
  • Node Exporter, kube-state-metrics, and application-specific exporters
  • Uptime Robot or BetterUptime multi-region endpoint monitoring
  • Log aggregation with Loki or the ELK stack (Elasticsearch, Logstash, Kibana)
  • Application Performance Monitoring (APM) with Datadog or New Relic
  • Error tracking integration with Sentry for application-level errors
  • Security event monitoring and anomaly detection alerting
  • Custom dashboard creation for business KPIs and SLO tracking