2: Kubernetes principles of operation
This chapter introduces you to major Kubernetes technologies and prepares you for upcoming chapters. You’re not expected to be an expert at the end of this chapter.
We’ll cover all of the following:
- Kubernetes from 40K feet
- Control plane nodes and worker nodes
- Packaging apps for Kubernetes
- The declarative model and desired state
- Pods
- Deployments
- Services
Kubernetes from 40K feet
Kubernetes is both of the following:
- A cluster
- An orchestrator
Kubernetes: Cluster
A Kubernetes cluster is one or more nodes providing CPU, memory, and other resources for use by applications.
Kubernetes supports two node types:
- Control plane nodes
- Worker nodes
Both types can be physical servers, virtual machines, or cloud ...
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