In this blog post, we will cover Deployments & Replicaset K8s objects. To understand deployments, we will start with Replicasets(we will soon know why). Below would be the flow of this post. - What are Replicasets & why exactly do we need them? - Practical example with Replicasets - What…

Background Quoting verbatim from the Linux Foundation website, “The Certified Kubernetes Security Specialist (CKS) program assures that one learns the skills, knowledge, and competence on a broad range of best practices for securing container-based applications and Kubernetes platforms during build, deployment, and runtime. CKA certification is required to sit for this…

K8s consists of multiple components on both the Controller and Worker Nodes. Imagine you as a K8s administrator who has built a cluster, and you get a confirmation from users that they could deploy and test applications through this cluster successfully. However, there is no guarantee that the cluster will…

In this blog post, let’s try understanding “K8s Network Policy”. We will be following the structure as below. - Some network communication fundamentals - What is a NetworkPolicy - What are NetworkPolicy agents - Concluding thoughts To start with, let’s lay out some fundamentals for K8s Networking for Pods for…

In the blog post, let’s try to understand what the K8s job object is and why do we need the same. Types of Jobs Run to completion (Jobs) Running jobs mostly for the specific instance of invocation without a schedule. 2. Scheduled (CronJob) Running jobs at a scheduled instance of time Why jobs…

I recently gave the Certified Jenkins Engineer Exam. This blog post will be sharing my experience on it. The high-level flow would be Background Why take this certification Pre-requisites How to prepare & related resources? Exam structure How much time to prepare? Exam experience Concluding thoughts Background Jenkins is a fairly…

In this post let’s try understanding What is a service account in K8s Why do we need it? Example on the same K8s applications run in Pods. Pods usually need access to resources from cloud vendors like aws, gcloud, azure, etc.

We saw an introduction to labels in our article here. In this article, let’s try to understand the differences between labels and annotation & when to use one over another. Let’s quickly summarize what we learned about labels Why use Labels in K8s? Labels allow K8s to group a set…

In our previous post, we saw what Replicasets are; in this post, let’s try to understand what a K8s Deployment object is step-by-step with some practical examples. In K8s, pods are the fundamental basic units that get deployed in a cluster. K8s deployment is an abstraction layer for the pods…