Install Multi-Cluster CN2 on Rancher RKE2
Use this procedure to install CN2 in a multi-cluster deployment.
In a multi-cluster deployment, CN2 is the central networking platform and CNI plug-in for multiple distributed workload clusters. The Contrail controller runs in the Kubernetes control plane in the central cluster, and the Contrail data plane components run on the worker nodes in the distributed workload clusters.
To install CN2 in a multi-cluster deployment, you first create the central cluster and then you attach the distributed workload clusters to the central cluster one by one. As with the single-cluster deployment, you'll start with a fresh Rancher RKE2 cluster with no CNI plug-in installed and then you'll install CN2 on it.
The manifest that you will use to create the central cluster in this example procedure is k8s/multi-cluster/central_cluster_deployer_example.yaml. The procedure assumes that you've placed this manifest into a manifests directory.
The procedures in this section show basic examples of how you can use the provided manifests to create the specified CN2 deployment. You're not limited to the deployment described in this section nor are you limited to using the provided manifests. CN2 supports a wide range of deployments that are too numerous to cover in detail. Use the provided examples as a starting point to roll your own manifest for your specific situation.