To build large-scale Internet services (e.g. online video applications) on Kubernetes, a flexible and high-performance networking solution is required. However, current Kubernetes networking solutions have either poor performance or poor portability, which undermines the advantages of containerization.

In this proposal, we will share an OpenStack based Kubernetes networking solution, which provides overlay network, hybrid workloads connectivity, multi-tenancy, and at the same time, is hardware offloaded for acceleration. In this solution, OpenStack Kuryr offers Kubernetes the network facilities from OpenStack Neutron. OpenStack Dragonflow is used to provide an OpenFlow based data-plane, which can be offloaded to physical network interfaces through OVS TC Flower offload feature. We will explore issues when applying the solution and compare the network performance of this solution with host network and overlay network based on Flannel.

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