DevOps Blog (Page 4)

How to Fix Docker Build Requires Exactly 1 Argument

How to Fix Docker Build Requires Exactly 1 Argument

In this blog post, we'll discuss what causes the docker build requires exactly 1 argument” error and how to resolve it.

Bash Echo Commands: Use Cases and Examples

Bash Echo Commands: Use Cases and Examples

Bash echo commands are the unsung heroes of the command line, often overlooked but crucial for any Linux or Unix system user. At first glance, the echo command might seem simple, just a messenger echoing text to the terminal. However, its utility goes far beyond this fundamental task. This blog

How to Fix "git ignore" Not Working Error?

How to Fix "git ignore" Not Working Error?

In this guide, we'll reveal the reasons behind the notorious git ignore not working issue, providing you with a roadmap to troubleshoot and rectify it.

Should I Use Kubernetes?

Should I Use Kubernetes?

In the DevOps world, container orchestration is often synonymous with Kubernetes, a platform for deploying and managing container-based workloads in production. Since its debut in 2014, Kubernetes has seen a meteoric rise in its adoption and popularity. Despite being a relatively new technology, it is now used by a vast

Docker Build Args: What Are They and How to Use Them

Docker Build Args: What Are They and How to Use Them

While building Docker images, there are times when you might need to customize various aspects of the build process. This could involve choosing specific versions of software, enabling or disabling features, or adjusting other build-time configurations to suit your needs. This is where Docker build args come into the picture.

How Kubernetes Works with Docker

Demystifying Container Orchestration: How Kubernetes Works with Docker

As a developer, you've probably heard of application containerization. Containers provide a lightweight and isolated runtime that ensures applications inside them run consistently across different environments. But as the number and complexity of containerized applications grow, so do the challenges of managing them. How do you ensure that

How to Fix “host key verification failed” in SSH

How to Fix “host key verification failed” in SSH

As DevOps engineers, we've all been there - deploying a new server, running our first SSH command, and the "host key verification failed" error screams back at us from the terminal. In this guide, I'll walk you through exactly what's happening under

Kubernetes vs. Docker Swarm

Kubernetes vs. Docker Swarm: A Comprehensive Comparison (2023)

Containers make application deployment and scaling easy and fast, and that makes them a perfect fit for modern applications. To get the most out of containerization, you need a good container orchestration tool. Currently, two of the most popular orchestration tools are Kubernetes and Docker Swarm. In this article, we

Git Diff: How to Compare Files Between Two Branches

Git Diff: How to Compare Files Between Two Branches

The git diff command is a vital component of the Git toolkit, providing developers with a straightforward yet powerful means to compare and understand changes across branches.

What is Kubernetes 'back-off restarting failed container' error? Here are the fixes

What is Kubernetes 'back-off restarting failed container' error? Here's the fixes

If you are a DevOps engineer working with Kubernetes, you might have encountered the 'back-off restarting failed container' error. This error indicates that your pod is stuck in a crash loop and cannot start properly. It can be frustrating and time-consuming to troubleshoot and fix this error, especially

How to Clear Docker Logs for a Container

How to Clear Docker Logs for a Container

When Docker containers run, they continuously generate log entries, recording everything from system errors to operational information. These logs are essential for troubleshooting and monitoring the health and performance of containers. However, without proper management, these log files can grow to consume significant disk space, potentially leading to issues with

How to Push Git Tags to Remote

How to Push Git Tags to Remote

In this article, we cover the basics of creating local Git tags and pushing them to shared remote repositories.

Introduction to DevOps Through Literature

Introduction to DevOps Through Literature

Whether you're just starting out or you're a seasoned professional, there's always more to learn in this ever-evolving field.

An Easy Guide to Install Terraform on Windows

An Easy Guide to Install Terraform on Windows

With Terraform, you can now define, deploy, and manage your infrastructure efficiently.

ECS vs EKS: What Works Best for Your Project?

ECS vs EKS: What Works Best for Your Project?

If you require a straightforward, tightly integrated AWS service and want to avoid the complexity of Kubernetes, ECS may be the way to go.

linux vs redhat

LFCS vs RHCSA: Which is Best For You? | Linux vs RedHat

LFCS is Great for a broad understanding of Linux. It's perfect for beginners. RHCSA is Ideal if you want to specialize in Red Hat Linux, especially for working in big companies.

How to Keep Docker Container Running

How to Keep Docker Container Running

Docker containers are generally designed to run a specific task or process and will remain active for the duration of that process. When the process finishes, the container exits. However, there are scenarios where you might want to keep the Docker container running indefinitely. This could be for debugging, development,

The Phoenix Project: Book Review

The Phoenix Project: Book Review

Unlike typical IT literature, "The Phoenix Project" is crafted as a novel, making it an engaging and accessible read.

How to Manage Your K8s with K9s Kubernetes CLI

How to Manage Your K8s with K9s Kubernetes CLI

K9s is a terminal-based UI to interact with your Kubernetes clusters. Learn how to use K9s CLI to monitor and manage your Kubernetes resources.

The DevOps Handbook Book Review

The DevOps Handbook - A Comprehensive Book Review

"The DevOps Handbook" is rightly celebrated as a monumental guide that stands as a pillar of knowledge and inspiration for individuals and organizations navigating the transformative pathways of DevOps.

The Unicorn Project Book Review

The Unicorn Project: A Comprehensive Book Review

Unicorn Project, a guide that navigates through the complexities of the IT world.

how to undo git add

How to Undo git add - Removing Added Files in Git

Three distinct methods to undo a git add and restore harmony to your Git workflow.

Understanding the Kubernetes API: A Comprehensive Guide

Understanding the Kubernetes API: A Comprehensive Guide

In Kubernetes, everything is an API object, from Pods to Services, and understanding how to interact with these objects is key to managing your cluster.