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About Calico

Calico provides secure network connectivity for containers and virtual machine workloads.

Calico creates and manages a flat layer 3 network, assigning each workload a fully routable IP address. Workloads can communicate without IP encapsulation or network address translation for bare metal performance, easier troubleshooting, and better interoperability. In environments that require an overlay, Calico uses IP-in-IP tunneling or can work with other overlay networking such as flannel.

Calico also provides dynamic enforcement of network security rules. Using Calico's simple policy language, you can achieve fine-grained control over communications between containers, virtual machine workloads, and bare metal host endpoints.

Proven in production at scale, Calico features integrations with Kubernetes, OpenShift, Docker, Mesos, DC/OS, and OpenStack.

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