Decision for a CNI
NETWAYS Managed Kubernetes offers two different Container Networking Interfaces (CNIs): Flannel and Cilium.
Flannel is characterized by its simplicity, while Cilium provides advanced features such as network encryption or Service Mesh functionality.
Flannel
Flannel focuses on the basic network connectivity. It does not provide NetworkPolicies or network encryption,
but it is extremely reliable for communication between Pods.
This makes it a good choice when you want to combine CNIs or place a Service Mesh on top of it.
Cilium
If you need advanced CNI features like NetworkPolicies, network encryption, mTLS, and observability, Cilium is the
right choice. It offers many capabilities that would otherwise require a full Service Mesh such as Istio.