Ackal uses a Kubernetes Operator to orchestrate the lifecycle of its health checks. Ackal’s Operator is written in Go using kubebuilder. Yesterday, my interest was piqued by a MetalBear blog post Writing a Kubernetes Operator [in Rust]. I spent some time reimplementing one of Ackal’s CRDs (Check) using kube-rs and not only refreshed my Rust knowledge but learned a bunch more about Kubernetes and Operators. While rummaging around the Kubernetes documentation, I discovered flant’s Shell-operator and spent some time today exploring its potential.