Containers - DevOps Blog

Vertical Pod Autoscaler (VPA) in Kubernetes Explained through an Example

Kubernetes provides a shared pool of resources allocated based on how you configure your containerized application. The allocation process is handled by a Scheduler, which checks the resource requirements of each container and selects an appropriate node to deploy the container’s pod. You define a container’s resource requirements

DevOps

Unlock Your Full Potential with KodeKloud's Free Week: A Comprehensive Guide

Exciting news for all the DevOps enthusiasts out there! KodeKloud’s highly popular Free Week is back, offering everything in the standard plan for free - for an entire week. This includes access to all 50+ premium courses and 400+ hands-on labs, allowing you to explore the most in-demand skills

Kubernetes

Kubectl Exec: How to Execute Shell Commands Into a Container (With Examples)?

Kubernetes is a powerful container orchestration platform for easily deploying and managing containerized applications. But managing containerized applications is about more than just getting them up and running. Sometimes, you’ll need to interact with the containers to perform important tasks, such as debugging issues or modifying files or directories.

DevOps

What Is Containerization?

Containerization is a modern technology that has drastically transformed the software deployment process. It involves packaging software applications and all their dependencies into a single, self-contained unit known as a container. So, what is a container? A container is a package containing all the necessary components required to run an

Twelve-Factor App

What is 12-Factor App? Twelve Factor App Methodology Explained.

In the past, standalone applications were the most common way to deliver software. These applications were installed and run on the user's local computer, without requiring external resources. However, over the years, there has been a significant increase in the use of web technologies, leading to the delivery of software

Docker

Docker Exec: How to Enter Into a Docker Container's Shell?

Docker is a platform that helps run applications inside containers. Once you have your application running in a container, you might want to carry out some tasks that require you to get inside the container. For example, you might want to modify files or directories, install new packages, or perhaps

wasm

WebAssembly vs Docker: Exploring their Connection and Potential

Docker recently made an announcement regarding the integration of WASM (WebAssembly) technology and subsequently released a technical preview which has piqued the interest of many in the developer community. However, there has been speculation about what this integration means for the future of software development with some blog posts claiming

Containerization

Docker Containerization: Key Benefits and Use Cases

Containerization has revolutionized the way we deploy software. In this post, we will learn about containerization, its benefits, and its common uses. We will also see how it is related to Docker, a popular container platform. By the end, you will have a good understanding of containerization and its role

WebAssembly

Complete Docker + Wasm Tutorial: From C++ Code to Wasm Container

In our previous lesson, we talked about the Docker + Wasm integration. Theory is always helpful, but nothing beats experience! So let's demystify some concepts, by actually seeing all of this in action. What will we see? Well, pretty much everything. To learn more about Wasm, check out our video What

wasm

What Is WebAssembly and Docker + Wasm? An in-depth look.

On October 24th, 2022, we received some pretty big news: Docker got official support for running WebAssembly applications. But if you're unfamiliar with WebAssembly (also called Wasm), this might leave you confused. Why is this big news? What is Wasm? Why is it so important for Docker? Want the short

Kubernetes

Kubernetes Terminology: Pods, Containers, Nodes & Clusters

Kubernetes is an open-source container orchestration tool created by Google. It eases the work of managing containerized applications at scale by automating tasks such as deployment and scaling. This blog explores the meaning of four terms that you'll come across many times when working with Kubernetes: Containers, Pods, Nodes, and

DevOps Community

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So you've decided to learn about DevOps tools and practices. You've found out about KodeKloud's easy to understand video courses. You're watching those, and everything goes smoothly. But now it's practice time! You roll up your sleeves and start to try it all yourself. You install tools, you edit configuration

Docker

What Is the Difference between Docker, LXC, and LXD Containers?

Imagine you're a developer writing a cool app for Linux servers. But some people run Ubuntu 20.04 on their servers. Others run 22.04. Others run an entirely different operating system, such as Red Hat Enterprise Linux. So how do you make sure your app runs well on each

Automation

What is GitOps and Why Developers Should Care?

GitOps is a methodology for deploying and managing software applications using Git. It is also referred to as "operations as code" or "code-driven operations," and it uses the principles of DevOps to streamline software updates across an organization. It basically uses a collaborative software development model involving Git and Kubernetes.

Container orchestration

Kubernetes Concepts Explained!

With Docker, you can run a single instance of the application with a simple Docker run command. In this case, to run a Node JS based application, you run the docker run nodejs command. But that’s just one instance of your application on one Docker host. What happens when

Docker certification

Docker and Containers: A Beginner's Introduction

Containerization has become an essential part of modern business operations. By isolating applications and services within containers, businesses achieve greater efficiency, scalability, and flexibility. In this article, we’ll discuss what containerization is and the role of Docker in containerization. We’ll also look at the differences between virtualization and

Container orchestration

What Are Pods in Kubernetes? A Quick Explanation (2023)

Here, we will take a look at PODS. POD introduction How to deploy a pod? Kubernetes doesn’t deploy containers directly on the worker node. * The containers are encapsulated into a Kubernetes object called POD. * A POD is a single instance of an application. * A POD is the smallest object