End-to-End Kubernetes with Rancher, RKE2, K3s, Fleet, Longhorn, and NeuVector

The Architecture of Fleet

At its core, Fleet is built around Kubernetes Custom Resource Definitions (CRDs) and controllers. These components enable the system to define, manage, and deploy workloads declaratively.

# SSH into the Rancher server (workspace)
ssh root@$WORKSPACE_PUBLIC_IP

# List the Fleet CRDs
kubectl get crd | grep fleet.cattle.io

The architecture of Fleet comprises three primary components:

Fleet Manager: