Overview
A release process that avoids serving downtime during deploys.
Definition
A release process that avoids serving downtime during deploys.
Real-world example
Better-PaaS starts the new container, waits for the health check to pass, then switches Caddy routing before stopping the old container.
Common mistake
Running database migrations that break the still-serving old version during a rolling deploy.
Better-PaaS in practice
Enabled for apps with working health checks. If health never passes, traffic stays on the previous release and the deploy is marked failed.
FAQ
Is zero-downtime deployment only relevant to Better-PaaS?
No. zero-downtime deployment 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.