Containers - DevOps Blog

Containers

A collection of 21 posts

Kubernetes Basics in a Week – Day 1: What Is Kubernetes and Why Should You Care?

Kubernetes Basics in a Week – Day 1: What Is Kubernetes and Why Should You Care?

👋 Let’s Begin With What You Might Already Know If you’ve ever created a website, built a backend API, or even deployed a simple app on your laptop or a cloud service, you know this: ✅ Apps need to run somewhere — a laptop, a server, or in the cloud ✅ You

Introducing KodeKloud Notes App: Your Ultimate Learning Companion

Introducing KodeKloud Notes App: Your Ultimate Learning Companion

Learning Kubernetes and DevOps can be challenging, especially when juggling multiple resources—watching videos, switching between slides, and trying to copy commands from PDFs. We get it. That’s why we built KodeKloud Notes—a centralized, interactive, and user-friendly platform where you can access all the essential text-based content from

Docker Init: Instantly Scaffold Docker Projects

Docker Init: Instantly Scaffold Docker Projects

Docker Init is a game-changer for DevOps engineers who want to containerize applications with speed and precision. In this tutorial, we’ll explore what the docker init command does, why it’s important, and how to use it to containerize a Node.js app in seconds. We’ll also compare

Docker Bake: The Smarter Way to Build Multiple Docker Images

Docker Bake: The Smarter Way to Build Multiple Docker Images

What is Docker Bake? Docker Bake is a powerful utility introduced by Docker as part of the docker buildx plugin. Inspired by tools like make and docker-compose, Docker Bake lets you define and run multiple Docker builds in parallel using a single configuration file (docker-bake.hcl or docker-bake.json). If

Vertical Pod Autoscaler (VPA)

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

KodeKloud's Free Week

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

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

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. However, 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.

What Is Containerization?

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. What is a container? A container is a package containing all the necessary dependencies required to run an application.

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

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

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

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

Docker Containerization: Key Benefits and Use Cases

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

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

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

In our previous lesson, we discussed 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. What better way to understand how Docker runs Wasm

WebAssembly and Docker + 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

Kubernetes Terms: Pods, Containers, Nodes & Clusters

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,

Difference between Docker, LXC, and LXD Containers

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 entirely different operating systems, such as Red Hat Enterprise Linux. So, how do you make sure your app runs well on

What is GitOps?

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

Kubernetes Concepts

Container orchestration

Kubernetes Concepts Explained!

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

Docker Introduction for Beginners

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

Pods in Kubernetes

Container orchestration

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

According to the CNCF's 2020 survey, Kubernetes is the most popular container orchestration platform, with 91% of respondents using it in production. It is made up of various components that work together to provide a complete container orchestration solution. Some of the key components of Kubernetes include the