Overview
Storage that survives container replacement and redeploys.
Definition
Storage that survives container replacement and redeploys.
Real-world example
Uptime Kuma stores monitor state in /app/data mounted from a Docker volume so redeploys do not wipe monitor history.
Common mistake
Assuming docker compose down -v is safe - it deletes named volumes and application data.
Better-PaaS in practice
Catalog apps declare volume paths. For Git apps, attach volumes in settings before relying on the app for production data.
FAQ
Is persistent volume only relevant to Better-PaaS?
No. persistent volume appears across Docker, cloud platforms, and self-hosted tooling. Better-PaaS exposes the concept in deploy logs, dashboard fields, or docs when it affects your app.