Run your own monitoring and dashboards

A separate monitoring VPS gives you one place to see whether applications and servers are healthy. It can collect metrics, run uptime checks, display dashboards, and send alerts when something crosses a threshold.

When self-hosted monitoring fits

This is useful when you want to keep operational data under your control, monitor private services, or customize retention and alert rules. Running monitoring away from the application servers also means an application failure is less likely to remove its own status information.

Prometheus, Grafana, node_exporter, and Alertmanager are one common stack. Other tools can serve the same purpose. The right choice depends on whether you need metrics, logs, traces, uptime checks, or a combination.

Choosing a server size

Small can handle a modest number of targets and short retention. More targets, shorter scrape intervals, high-cardinality metrics, and long retention increase memory and storage use. Watch disk growth from the beginning. Compare the VPS plans with expected data volume and retention.

What you manage

Monitoring data can reveal hostnames, service names, and infrastructure details. You manage access, updates, retention, notification credentials, backups, and tests that prove alerts reach a person.

The Prometheus and Grafana guide provides a complete Docker Compose setup with a metrics check and a test alert.