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A collection of 4 posts

Creating a multi-arch K8 cluster - Part 5 - Add a x86-Node

Creating a multi-arch K8 cluster - Part 5 - Add a x86-Node

Adding a x86/AMD64 node to the cluster is similar to the steps described in part 2 [https://blog.goeri.de/k8-cluster-part-2/] and part 3 [https://blog.goeri.de/k8-cluster-part-3] of this guide. This part will add a few details you should pay attention on. At first a bootable installation

Creating a multi-arch K8 cluster - Part 4 - Setup a load-balancer and NFS

Creating a multi-arch K8 cluster - Part 4 - Setup a load-balancer and NFS

After part 3 of this blog series we have a fully working Kubernetes cluster. Load-Balancer It has one major drawback: All exposed ports of running pods/services are only reachable under the specific worker node IP address. In a real cluster a load-balancer would handle all incoming traffic and route

Creating a multi-arch K8 cluster - Part 3 - Install Docker and Kubernetes

Creating a multi-arch K8 cluster - Part 3 - Install Docker and Kubernetes

The following steps have to be done on all Raspberry Pi's in the cluster! Prepare Docker installation Enable the linux kernel control groups (cgroups) for Docker and Kubernetes. These cgroups [https://en.wikipedia.org/wiki/Cgroups]are responsible for isolation and limiting of resources like CPU and memory. Therefor it's

Creating a multi-arch K8 cluster - Part 2 - Installing the OS

Creating a multi-arch K8 cluster - Part 2 - Installing the OS

One goal was to use Kubernetes on 64-bit because this architecture is widely supported with a growing number of docker images while arm32v6/v7 is silently dying. Only a 64-bit OS can take full advantage of the 4 GB memory of an Raspberry PI 4. With the hardware that was