How to Migrate 700 Kubernetes Clusters to Cluster API with Zero Downtime

Overview

Discover how to migrate 700 Kubernetes clusters to Cluster API with zero downtime in this informative conference talk by Tobias Giese and Sean Schneeweiss from Mercedes-Benz Tech Innovation. Learn about the challenges and solutions involved in transferring production systems to Cluster API control without impacting customers. Explore the technical aspects of migration, including legacy cluster provisioning, target cluster provisioning, and the three-step process of cluster infrastructure migration, worker node migration, and control plane adoption. Gain insights into best practices for extending Cluster API functionality to meet specific needs, and understand the future plans for Kubernetes cluster management at Mercedes-Benz. This presentation offers valuable knowledge for organizations looking to simplify their Kubernetes cluster provisioning and management using Cluster API.

Syllabus

Intro
MercedesBenz Tech Innovation
Agenda
Workload Cluster
Zero Downtime
Legacy Cluster provisioning
Target Cluster provisioning
Preparation
Three Steps
Cluster Infra Migration
Worker Node Migration
Fake DM Control Plane
Patch Status Fields
Machine Set
Machine Deployment
Customer View
Create a New Control Plane
Adopt Legacy Provision Control Plane Machines
Create OpenStack Machines
Pause KCP
Done
Best Practices
Future Plans
Join us
Questions