Deploying a Laravel Application With Minimal Downtime

A low-downtime deployment separates release preparation from the moment traffic begins using the new code. The exact method depends on hosting capabilities, but the principles remain the same: prepare, switch, verify, and recover if needed.

Build dependencies and assets before changing the live release. Keep environment-specific configuration and uploaded user files outside disposable release directories. Use a release directory or another controlled deployment approach where supported, and switch the active release only after the new code is ready.

Database changes need backward compatibility when old and new application versions may run during the transition. Add new structures first, deploy code that can work with both states, migrate data carefully, and remove obsolete structures in a later release. Back up the database and test the migration on representative data.

After switching, run health checks and inspect error rates, queues, scheduled tasks, and critical user flows. Keep the previous code available for a quick rollback, but understand that code rollback cannot automatically undo incompatible data changes. Record the release identifier and the result of each check.