DevOps - DevOps Blog (Page 4)

DevOps

A collection of 160 posts

What Is Kubectl Port-Forward and How Does It Work?

What Is Kubectl Port-Forward and How Does It Work?

Kubernetes is a popular container orchestration platform for deploying and managing containerized applications. When you deploy a containerized application to a Kubernetes cluster, it runs inside a Pod. By default, Pods are not exposed to the public internet. If you want to make the application running inside the Pod accessible

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 Kubernetes DaemonSet and How to Use It?

What Is Kubernetes DaemonSet and How to Use It?

In Kubernetes, a Deployment is a higher-level abstraction built on top of ReplicaSets. In other words, a Deployment provides a simpler, higher-level interface for managing and scaling applications, while ReplicaSets are the lower-level building blocks that a Deployment uses to achieve this. When you create a Deployment, you specify the

What Is GitOps? Deployment Strategies & Advantages Explained.

What Is GitOps? Deployment Strategies & Advantages Explained

GitOps is a term that has been around for a while but has recently gained popularity in the DevOps and software engineering communities. GitOps takes DevOps' best practices, such as collaboration, version control, and compliance, and applies them to infrastructure automation. So, let's start by understanding DevOps.

How to Run a Docker Image as a Container?

How to Run a Docker Image as a Container?

Have you ever struggled to get your application to run smoothly across different environments, from your local laptop to a production server? It's a common challenge in software development. Fortunately, there’s a solution to this challenge — containerization. With containerization, you can package your application and all its

How to Become a DevOps Engineer From Scratch: Your 6-Step Guide

How to Become a DevOps Engineer From Scratch: Your 6-Step Guide

Are you interested in pursuing a career as a DevOps engineer? If so, you're in luck because we've put together a comprehensive 6-step guide to help you get started on your journey. DevOps is a hot field right now, and for good reason. As companies strive

ClusterIP vs NodePort vs LoadBalancer: Key Differences and When to Use Them?

Kubernetes Services

ClusterIP vs. NodePort vs. LoadBalancer: Key Differences and When to Use Them?

In Kubernetes, there are three commonly used Service types: ClusterIP, NodePort, and LoadBalancer. These Services provide different ways to make Pods accessible to other Pods within the cluster and to clients outside of it. In this blog post, first, we’re going to talk about Kubernetes Services — what they are

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

What Are Objects Used for in Kubernetes? 11 Types of Objects Explained.

What Are Objects Used for in Kubernetes? 11 Types of Objects Explained.

Kubernetes is a container orchestration tool used to deploy & manage containerized applications in an automated way. One of the key concepts in Kubernetes is the "desired state," which refers to the configurations of the applications that you want to deploy and run. Essentially, it's the

What Is Kubernetes Headless Service (With Examples)?

What Is Kubernetes Headless Service (With Examples)?

Kubernetes is a powerful platform for managing containerized applications. One of its crucial components is the Service object, which enables communication (networking) between different parts of an application. In this blog post, we will dive into the concept of headless Services. We will find out what they are, how they

Kubernetes Services: Definitions & Examples (2023)

Kubernetes Services: Definitions & Examples (2023)

Kubernetes is a platform that helps you run your containerized applications on a massive scale. A key aspect of this is ensuring that different parts of your apps can easily communicate. Kubernetes does this by using Kubernetes Services. These Services allow smooth communication between components within the cluster and between

What Are Kubernetes KEPs?

What Are Kubernetes KEPs?

Kubernetes is a popular container orchestration platform, which is constantly evolving and expanding. New features are regularly added to improve its capabilities and address the changing needs of its users. So, how does a new feature make it into Kubernetes? Well, it all starts with a Kubernetes Enhancement Proposal (KEP)

Kubernetes Networking: Fundamental Concepts Explained (2023)

Kubernetes Networking: Fundamental Concepts Explained (2023)

Networking is the backbone of modern technology. It's what allows communications between devices and applications, whether they're sitting next to each other or on opposite sides of the world. Essentially, networking is all about connecting things together. In the context of Kubernetes, networking is even more

DevOps vs Agile - What’s the Difference?

DevOps vs. Agile - What’s the Difference?

If you are in the tech industry, you have probably heard the terms "DevOps" and "Agile" thrown around a lot. But what do they actually mean, and how are they different? That's what we are here to explore today. In this post, we will

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

Docker Architecture Explained: Docker Daemon, Docker Client & Docker Registry

Docker Architecture Explained: Docker Client, Docker Daemon & Docker Registry

Docker is a platform that helps you run your application in a container. A container is sort of like a virtual machine but much more lightweight and easier to set up. The idea is that you package up your application and all of its dependencies into a container, and then

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

Why Should You Learn HashiCorp Terraform?

Why Should You Learn HashiCorp Terraform?

Software applications run on top of infrastructure. This includes things like servers, databases, storage, networking, and other infrastructure components. Imagine you are an employee tasked with setting up a new web server for your company's website. Let’s consider a manual infrastructure provisioning scenario. You would have to