Kubernetes introduces some concepts that may sound unfamiliar or be confusing if you hear them for the first time. When you learn their purpose, it should be easier to grasp what makes Kubernetes special. Here are some of the most common Kubernetes objects:
- A container, specifically, an application container, is a method of distributing and running a single application. It contains the code and configuration necessary to run the unmodified application anywhere.
- A Pod is a basic Kubernetes building block. It is atomic and consists of one or more containers. All the containers inside the pod share the same network interfaces, volumes (such as persistent storage or secrets), and resources (CPU and memory).
- A deployment is a higher-level object that describes the workload and its life cycle features. It typically manages a set of pod replicas, allows for rolling upgrades, and manages the rollbacks in case of failure. This is what makes...