Kubernetes architecture options with F5 Distributed Cloud Services
Updated Mar 14, 2024
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Hi Nikoolayy1
Generally, modern CNI does provides access to the CluserIP. What need to happend is to route those respective subnet to the K8S nodes and the CNI will handel the routing to the internal pods. OpenShift used to require you to create VXLAN tunnel to the cluster IP due to it using OpenShiftSDN. With OCP 4.9 (if I am not wrong), Redhat default cni to OVN-Kubernetes, which support direct to the cluster ip. EKS, AKS (Azure CNI), GKE and Calico a few of those that I know support direct to the cluster IP. AKS (Kubenet) don't. So, its CNI dependent. F5 CIS relied on the CNI to send traffic. You can run Cluster mode or tunnel mode.