Decoding Pods Vs Containers | Docker Vs Kubernetes — Professional friendly.
Let’s decode the encoded.
What is the difference between a POD and a Container?
Pod does the same thing as container do. A pod can have one or more containers. Practically in the production environment — one pod has one container. Technically it can have any — called multi-container pods.
Now, What and How is Container created?
A Container is a microservice, a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another.
Dockerfile creates Docker image, Docker image creates Docker container.
In Docker, Dockerfile → Docker Image → Docker container.
Okay now, What and How is POD created?
A Pod represents a single instance of a running process in your cluster. You can consider a Pod to be a self-contained, isolated “logical host” that contains the systemic needs of the application it serves.
In K8s, Dockerfile → Docker Image → Docker container → Pod
That’s how containers are created in Docker, Pods are created in Kubernetes.
Now read the below definitions of Docker & Kubernetes, it all makes sense. Let me know if it did in the comment below.
Docker is an open-source containerization platform. It enables developers to package applications into containers — standardized executable components combining application source code with the operating system (OS) libraries and dependencies required to run that code in any environment.
Kubernetes is a portable, extensible, open-source platform for managing containerized workloads and services, that facilitates both declarative configuration and automation.