الإيقاف السلس والتراجع

في هذا الدرس

stop and revert without dropping requests.

الموضوعات المخطط لها

• On SIGTERM a graceful shutdown finishes in-flight requests: server.shutdown=graceful plus a timeout.
• The platform sends SIGTERM, waits, then SIGKILL; set the timeout under that grace period.
• Roll back by redeploying the previous image tag; this is why tags must be unique and old images kept.
• Database changes complicate rollback: make migrations backward compatible.
• Practice the rollback before you need it.