Section 1: Introduction and Migration Strategy

Migrating from k3s to RKE2

Every migration starts with a plan and a blank server. This section develops the phased strategy that guides the rest of the guide, then turns Node 4 into a production-ready base for the first RKE2 control plane: Rocky Linux installed, vSwitch networking configured with dual-stack addressing, and firewall rules locked down for Kubernetes traffic.

By the end, Node 4 is ready to bootstrap RKE2 without the existing k3s cluster being touched.

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This is the 1st section of the guide Migrating from k3s to RKE2. The full list of lessons in the guide can be found in the overview.

Getting Started

To get started with the section, head over to the first lesson in this section to learn about the migration strategy, prepare the new node with Rocky Linux, and configure networking and firewall rules.

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