Kubernetes Basics

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Overview:

Kubernetes has become the leader in Container Orchestration and a working knowledge of Kubernetes is essential for every developer.

In this post I am going to cover some very basic concepts of Kubernetes.


Concepts:

Pod is a logical unit containing one or more containers (if you use a side car). It is the smallest execution unit.
Replica Set represents number of instances of pods which are running. Used for scaling of pods.
Stateful Set represents unique pods which retain state while running. We use Stateful Set while working with stateful workloads like a database cluster or a master slave configuration of workload.
Deployment represents abstraction used to represent and update Pods and ReplicaSets. We use deployment as a "kind" in the yaml files while deploying an app in Kubernetes.
Service is used for defining how we expose/access an application within a Pod.

Generally when we expose an application in Kubernetes using Service, there are four options:
  1. Cluster IP - Apps are exposed internally within the cluster.
  2. NodePort - Apps are exposed via a static port and the IP of the node.
  3. External IP - Apps are exposed via an externally assigned static IP.
  4. Load Balancer - Apps are exposed via cloud provider provided Load balancer.

References:

1. Kubernetes Concepts. Retrieved from https://kubernetes.io/docs/concepts/

Comments

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  2. AnonymousJune 10, 2026 at 2:14 AM

    This is a well-written introduction to Kubernetes that simplifies many of the concepts newcomers often find challenging. The explanation of Pods, Services, Deployments, and cluster architecture provides a clear understanding of how Kubernetes manages containerized applications. The article effectively demonstrates why Kubernetes has become a key technology for building scalable and reliable modern infrastructure.

    ReplyDelete
  3. AnonymousJune 10, 2026 at 2:14 AM

    The discussion on container orchestration, workload management, and automated scaling highlights the importance of Kubernetes in modern cloud-native environments. Understanding these concepts helps developers and administrators build resilient applications that can efficiently operate across distributed infrastructures. Cloud Computing Projects provide valuable opportunities to explore containerized deployments and cloud infrastructure management.

    As organizations increasingly adopt Kubernetes for production workloads, maintaining secure configurations and protecting cluster resources become essential operational requirements. Implementing strong security practices helps ensure reliability, compliance, and workload isolation across cloud environments. Cloud Security Projects help students gain practical experience in securing containerized and cloud-native applications.

    ReplyDelete

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