🤖 AI Summary
To address the lack of decentralized, adaptive application management mechanisms for massive heterogeneous devices in fog computing environments, this paper proposes the first declarative application management framework tailored for fog computing. The framework employs high-level intent specifications (in YAML) to decouple user requirements from underlying heterogeneous execution details, enabling automated cross-edge-and-cloud deployment, elastic scaling, and self-healing capabilities. Its key innovation lies in systematically introducing the declarative paradigm into fog computing lifecycle management, realized through a closed-loop control architecture comprising a Kubernetes-based extensible orchestration layer, lightweight runtime agents, and an event-driven coordinator. Evaluated on a real-world multi-domain fog testbed, the framework achieves a 42% reduction in deployment latency, sub-1.2-second policy update response time, and a 28% improvement in resource utilization.