Feb 2025 Release - Rafay Product Documentation

Upstream Kubernetes on Flatcar Linux using Rafay

This blog is Part 3 of our series on Flatcar Linux and Kubernetes

• In Part 1, we introduced Flatcar Linux and why it is a great fit for Kubernetes.
• In Part 2, we covered how to install a Flatcar instance locally.
• In this Part 3, we focus on deploying and managing Upstream Kubernetes on Flatcar Linux using Rafay MKS.

Our upcoming February release will introduce a number of new features and enhancements. We will write about these in separate blogs. This blog is focused on support for Upstream Kubernetes based on Rafay MKS on nodes running Flatcar Linux. The Rafay platform enables users to seamlessly provision new clusters and perform in-place upgrades of Kubernetes clusters, simplifying lifecycle management.

For more details on Flatcar Linux, visit the official Flatcar Linux website.

Provision Cluster

Rafay MKS based Upstream Kubernetes clusters can be configured and provisioned on Flatcar Linux using all the supported interfaces i.e.

• Web Console
• API
• CLI (declarative spec)
• GitOps
• Rafay Terraform/OpenTofu Provider

In this blog, we will demonstrate this using the web console and the Rafay RCTL CLI.