Cloud Native Load Balancing From Scratch - Fangyuan Li VMware

Join us for Kubernetes Forums Seoul Sydney Bengaluru and Delhi - learn more at kubecon.io Dont miss KubeCon CloudNativeCon 2020 events in Amsterdam March 30 - April 2 Shanghai July 28-30 and Boston November 17-20! Learn more at kubecon.io. The conference features presentations from developers and end users of Kubernetes Prometheus Envoy and all of the other CNCF-hosted projects Cloud Native Load Balancing From Scratch - Fangyuan Li VMware Load balancing is required by all modern distributed systems which can be done in many places and multiple layers. With all the options on the table eg: gRPC Envoy IPVSBPF have you been curious of when and how any one of them will fit into your stack and scale your system as traffic grows? Aiming to demystify load balancing in K8s Id like to share my experience utilizing these cloud-native load balancing techniques discussing their tradeoffs and applicable scenarios. The journey starts with a simple VIP iptable implementation. Then we dive deeper and examine from client to server kernel to userspace going up from IP to HTTP. Well draw the big picture and demonstrate the use of different tools in plain Bash scripts. With these building blocks in mind well summarize by comparing them across K8sclusterIPnodePort Dockerrouting mesh Envoy and a number of CNI plugins. ,

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