Let’s Go into the rabbit hole (part 2) — the challenges of dynamically hooking Golang programs

Golang is the most used programming language for developing cloud technologies. Tools such as Kubernetes, Docker, Containerd and gVisor are written in Go. Despite the fact that the code of these programs is open source, there is no way to analyze and extend their behaviour dynamically (for example through binary instrumentation) without recompiling their code. Is this due to the complex internals of the language? In this second blog post, we’ll showcase how to create runtime hooks for Golang programs using FFI (foreign function interfaces).