基于 Open vSwitch 的 Kubernetes 网络
Open vSwitch is a widely adopted high-performance programmable virtual switch; Antrea leverages it to implement Pod networking and security features. For instance, Open vSwitch enables Antrea to implement Kubernetes Network Policies in a very efficient manner. ## Prerequisites Antrea has been tested with Kubernetes clusters running version 1.23 or later. * `NodeIPAMController` must be enabled in the Kubernetes cluster.\ When deploying a cluster with kubeadm the `--pod-network-cidr ` option must be specified. Alternately, NodeIPAM feature of Antrea Controller should be enabled and configured. * Open vSwitch kernel module must be present on every Kubernetes node. ## Getting Started Getting started with Antrea is very simple, and takes only a few minutes. See how it's done in the [Getting started](docs/getting-started.md) document. ## Contributing The Antrea community welcomes new contributors. We are waiting for your PRs! * Before contributing, please get familiar with our [Code of Conduct](CODE_OF_CONDUCT.md). * Check out the Antrea [Contributor Guide](CONTRIBUTING.md) for information about setting up your development environment and our contribution workflow. * Learn about Antrea's [Architecture and Design](docs/design/architecture.md). Your feedback is more than welcome! * Check out [Open Issues](https://github.com/antrea-io/antrea/issues). * Join the Antrea [community](#community) and ask us any question you may have. ### Community * Join the [Kubernetes Slack](http://slack.k8s.io/) and look for our [#antrea](https://kubernetes.slack.com/messages/CR2J23M0X) channel. * Check the [Antrea Team Calendar](https://calendar.google.com/calendar/embed?src=uuillgmcb1cu3rmv7r7jrhcrco%40group.calendar.google.com) and join the developer and user communities! + The [Antrea community meeting](https://broadcom.zoom.us/j/823654111?pwd=MEV6blNtUUtqallVSkVFSGZtQ1kwUT09), every two weeks on Tuesday at 5AM GMT+1 (United Kingdom time). See Antrea team calendar for localized times. - [Meeting minutes](https://github.com/antrea-io/antrea/wiki/Community-Meetings) - [Meeting recordings](https://www.youtube.com/playlist?list=PLuzde2hYeDBdw0BuQCYbYqxzoJYY1hfwv) + [Antrea live office hours](https://antrea.io/live) archives. * Join our mailing lists to always stay up-to-date with Antrea development: + [projectantrea-announce](https://groups.google.com/forum/#!forum/projectantrea-announce) for important project announcements. + [projectantrea](https://groups.google.com/forum/#!forum/projectantrea) for updates about Antrea or provide feedback. + [projectantrea-dev](https://groups.google.com/forum/#!forum/projectantrea-dev) to participate in discussions on Antrea development. Also check out [@ProjectAntrea](https://twitter.com/ProjectAntrea) on Twitter! ## Features * **Kubernetes-native**: Antrea follows best practices to extend the Kubernetes APIs and provide familiar abstractions to users, while also leveraging Kubernetes libraries in its own implementation. * **Powered by Open vSwitch**: Antrea relies on Open vSwitch to implement all networking functions, including Kubernetes Service load-balancing, and to enable hardware offloading in order to support the most demanding workloads. * **Run everywhere**: Run Antrea in private clouds, public clouds and on bare metal, and select the appropriate traffic mode (with or without overlay) based on your infrastructure and use case. * **Comprehensive policy model**: Antrea provides a comprehensive network policy model, which builds upon Kubernetes Network Policies with new features such as policy tiering, rule priorities, cluster-level policies, and Node policies. Refer to the [Antrea Network Policy documentation](docs/antrea-network-policy.md) for a full list of features. * **Windows Node support**: Thanks to the portability of Open vSwitch, Antrea can use the same data plane implementation on both Linux and Windows Kubernetes Nodes. * **Multi-cluster networking**: Federate multiple Kubernetes clusters and benefit from a unified data plane (including multi-cluster Services) and a unified security posture. Refer to the [Antrea Multi-cluster documentation](docs/multicluster/user-guide.md) to get started. * **Troubleshooting and monitoring tools**: Antrea comes with CLI and UI tools which provide visibility and diagnostics capabilities (packet tracing, policy analysis, flow inspection). It exposes Prometheus metrics and supports exporting network flow information to collectors and analyzers. * **Network observability and analytics**: Antrea + [Theia](https://github.com/antrea-io/theia) enable fine-grained visibility into the communication among Kubernetes workloads. Theia provides visualization for Antrea network flows in Grafana dashboards, and recommends Network Policies to secure the workloads. * **Network Policies for virtual machines**: Antrea-native policies can be enforced on non-Kubernetes Nodes including VMs and baremetal servers. Project [Nephe](https://github.com/antrea-io/nephe) implements security policies for VMs across clouds, leveraging Antrea-native policies. * **Encryption**: Encryption of inter-Node Pod traffic with IPsec or WireGuard tunnels. * **Easy deployment**: Antrea is deployed by applying a single YAML manifest file. To explore more Antrea features and their usage, check the [Getting started](docs/getting-started.md#features) document and user guides in the [Antrea documentation folder](docs/). Refer to the [Changelogs](CHANGELOG/README.md) for a detailed list of features introduced for each version release. ## Adopters For a list of Antrea Adopters, please refer to [ADOPTERS.md](ADOPTERS.md). ## Roadmap We are adding features very quickly to Antrea. Check out the list of features we are considering on our [Roadmap](ROADMAP.md) page. Feel free to throw your ideas in! ## License Antrea is licensed under the [Apache License, version 2.0](LICENSE)
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