Summary
In this chapter, we got into some hands-on cluster creation. We created single-node and multi-node clusters using tools like Minikube, KinD, and k3d. Then we looked at the various options to create Kubernetes clusters on cloud providers. Finally, we touched on the complexities of creating Kubernetes clusters on bare metal. The current state of affairs is very dynamic. The basic components are changing rapidly, the tooling is getting better, and there are different options for each environment. Kubeadm is now the cornerstone of most installation options, which is great for consistency and consolidation of effort. It’s still not completely trivial to stand up a Kubernetes cluster on your own, but with some effort and attention to detail, you can get it done quickly.
I highly recommend considering the Cluster API as the go-to solution for provisioning and managing clusters in any environment – managed, private cloud, VMs, and bare metal. We will discuss the Cluster API in depth in Chapter 17, Running Kubernetes in Production.
In the next chapter, we will explore the important topics of scalability and high availability. Once your cluster is up and running, you need to make sure it stays that way even as the volume of requests increases. This requires ongoing attention and building the ability to recover from failures as well adjusting to changes in traffic.
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