Pod design patterns
Before we get into pod design patterns, I want to make sure that we all understand the nomenclature of Kubernetes.
Figure 4.1 – Node, namespace, pod, and service in Kubernetes
As depicted in the diagram, we have nodes, namespaces, pods, and services:
- Pod: This is the smallest and simplest unit of deployment in Kubernetes, which can contain one or more containers
- Namespace: This is a way to create virtual clusters within a physical Kubernetes cluster to separate resources and provide access control and naming scope
- Node: This is a physical or virtual machine that runs containerized applications and provides the computational resources for the Kubernetes cluster
- Service: This is an abstraction layer that provides a stable IP address and DNS name for a set of pods and allows access to the pods from other parts of the cluster or from outside the cluster
Now, let’s look at design patterns.
Kubernetes...