Linux kernel 3.10 or later with required dependencies. The following distributions have the required kernel, its dependencies, and are known to work well with Calico and OpenShift.
- RedHat Linux 7
- CentOS 7
Calico v3.1 requires a key/value store accessible by all Calico components. On OpenShift, Calico can share an etcdv3 cluster with OpenShift, or you can set up an etcdv3 cluster dedicated to Calico.
Calico requires the network to allow the following types of traffic.
* Our manifests enable IPIP by default. If you disable IPIP, you won’t need to allow IPIP traffic. Refer to Configuring IP-in-IP for more information.
Tip: On GCE, you can allow this traffic using firewall rules. In AWS, use EC2 security group rules.
Calico v3.1 supports:
- OpenShift Origin 3.6 and 3.7
- OpenShift Container Platform 3.6 and 3.7
Refer to the OpenShift documentation for additional requirements.
Tip: If you are using one of the recommended distributions, you will already satisfy these.
ipip(if using Calico networking)