Secure FaaS orchestration in the fog: how far are we?

Abstract Function-as-a-Service (FaaS) allows developers to define, orchestrate and run modular event-based pieces of code on virtualised resources, without the burden managing underlying infrastructure nor life-cycle such code. Indeed, FaaS providers offer resource auto-provisioning, auto-scaling pay-per-use billing at no costs for idle time. This makes it easy scale running represents an effective increasingly adopted way deliver software. article aims offering overview existing literature in field next-gen from three different perspectives: (i) definition orchestrations, (ii) execution orchestrations Fog computing environments, (iii) security orchestrations. Our analysis identify trends gaps literature, paving further research securing landscapes.