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This article explains how Kubernetes rolling deployments affect pod lifecycle, detailing the startup and shutdown phases, the impact of readiness probes and endpoint updates, and how to prevent connection interruptions by using preStop hooks and proper configuration for zero‑downtime deployments.
The rolling deployment strategy incrementally replaces old application instances with new ones, allowing users to encounter both versions during rollout, and is praised for ease of implementation, low risk, and default support in platforms like Kubernetes, though it can be slow, costly for large infrastructures, and may affect user experience.
This article explains how Industrial and Commercial Bank of China (ICBC) adopts gray‑release strategies—including canary, rolling, and blue‑green deployments—combined with standardized specifications, management processes, and automation tools to control version risk, ensure financial stability, and accelerate digital innovation.