F5 BIG-IP Container Ingress Services vs Kusk Gateway

F5 BIG-IP Container Ingress Services (CIS) connects Kubernetes and Red Hat OpenShift environments with F5 BIG-IP. It watches Kubernetes resources and adjusts BIG-IP configuration as applications change, while teams manage BIG-IP through Kubernetes or OpenShift command-line interfaces and APIs. CIS can send traffic from BIG-IP to clusters through NodePort or ClusterIP and supports F5 AS3 declarations. It provides HTTP and URI routing, load balancing, scaling, health monitoring, and Blue/Green or A/B traffic handling. F5 documents Ingress resources, OpenShift Routes, IngressLink coordination with NGINX Ingress Controller, and overlays including OpenShift SDN, Flannel, and Calico. BIG-IP data streams can export application and network statistics to tools such as Splunk. Installation is available through Helm or manual methods, with releases on Docker Hub and Red Hat Container Registry. The open-source plan is free, but requires a licensed BIG-IP system, a Kubernetes or OpenShift cluster, and AS3 installed on BIG-IP.

Kusk Gateway is a Kubernetes API gateway powered by Envoy, with native OpenAPI support. It uses OpenAPI definitions to configure a cluster's Ingress Controller, making it relevant to teams following an OpenAPI-first workflow for REST APIs. It can mock API responses for prototyping and automatically validate requests and responses. Teams can set request timeouts and CORS without coding, and adjust headers, CORS, limits, and quality of service globally or for individual paths.

An open-source dashboard supports API deployment and management, specification editing and validation, and API testing. The maker says an API can be published by adding an annotation to a service deployment, without additional configuration or DevOps support. Kusk can be installed on Mac, Linux, or Windows and is self-hosted. The project is 100% open source under the MIT License, with rate limiting and authentication policies listed. The maker presents it for teams building modern REST APIs on Kubernetes.