Antrea is an open source Kubernetes project that provides networking and security capabilities for pod workloads.
Key capabilities include the ability to create overlay networks, enforce network policies, and improve network performance.
It utilizes both the Container Network Interface (CNI) and Kubernetes NetworkPolicy, and extends the capabilities of networks built on top of Open vSwitch.
Antrea is designed to be easy to deploy, manage, and troubleshoot. It achieves this ease through the use of Kubernetes controller patterns and by providing diagnostics that can be consumed by well-known tools.
Because it uses Open vSwitch, it can be extended to support advanced networking cases, like kernel bypass and network service mesh.
It is currently an incubation level project at the Cloud Native Computing Foundation, which is the beginning level and means it is not yet proven ready for production use.
Companies that are partnering with Antrea include Intel and Nvidia, and its users include companies like Glasnostic and VMware.