Cloud computing How To Learn Cloud Computing Learn cloud computing as a DevOps engineer in this guide. Discover the basics, pick a platform, practice with projects, get certified, and keep learning.
Kubernetes Pods Stuck in Terminating: A Resolution Guide In this article, you will discover the common causes of the “Kubernetes Pod Stuck In Termination” problem, the commands to troubleshoot it, and the best practices to fix it and avoid it in the future.
How to Fix “Could not create SSL/TLS secure channel” Error Are you getting the "could not create ssl/tls secure channel" error when accessing a web service or API over HTTPS? Learn how to troubleshoot and fix this common SSL/TLS error using Wireshark and Fiddler
Python How to Start with Python: A Beginner's Guide Python is one of the most popular and widely used programming languages in the world. Whether you want to automate tasks, analyze data, build websites, or create games, Python can help you achieve your goals.
DevOps environments Container Security Best Practices in DevOps Environments Learn how to secure your containers from the host OS to the orchestrator, using the best practices and tools for each layer of the container stack. Discover how to protect your applications and data from cyber attacks while enjoying the benefits of containerization.
DevOps How to run Predictive Analytics In DevOps Predictive analytics can help DevOps teams improve their workflow efficiency, reliability, and quality. In this article, we will cover gathering predictive analytics data, selecting and training predictive models, operationalizing the models, and how to continuously improve predictive models.
AI The Role of AI-Driven Code Reviews in Enhancing DevOps Cycles In this article, we will explore how AI-driven code review benefits developers, DevOps teams, and businesses, as well as its impacts on DevOps culture.
Kubernetes How to Fix ImagePullBackOff & ErrImagePull in Kubernetes ImagePullBackOff and ErrImagePull errors in Kubernetes mean containers can’t be pulled from the registry. This can happen because of network, image, or storage issues. To fix them, check network, image, and storage settings. Also, make sure you have the right authentication secrets.
Kubernetes 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
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 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
Git 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.
Security & Containerization As containerization becomes increasingly popular among IT and DevOps teams, ensuring container security has become a top priority. According to a report by Red Hat1, 46% of respondents worry about exposure to attack due to misconfigurations in their container and Kubernetes environments, which is nearly three times the level of
Kubernetes Deploying, Maintaining, and Scaling Kubernetes Clusters How do you run containerized applications at scale with reliability and efficiency? If you are like most DevOps professionals, you probably use Kubernetes. It is the most popular and widely used container orchestration tool, with over 80% of the market share. This article will help you understand the art and
API Versioning 4 API Versioning Best Practices in 2023 Explore API versioning essentials and best practices for 2023. This guide covers various versioning strategies, emphasizing compatibility, stability, and optimized performance in API development within a dynamic DevOps environment.
K3s K3s vs K8s: What are the Differences & Use Cases key advantage of K3s over K8s is its focus on simplifying day-to-day management and operations of the Kubernetes cluster compared to the upstream project.
Argo CD What is Argo CD? Concepts & Practical Examples If you are looking for a way to manage your Kubernetes applications using GitOps principles, you definitely should check out Argo CD. In this article, I will show you what Argo CD is, how it works, and how you can use it to deploy and manage your applications in a
How to Use Kubectl Scale on Deployment Kubernetes is a powerful platform for managing containerized applications. One of the key features of Kubernetes is the ability to scale the pods up or down to optimize performance and resource consumption. In this tutorial, you will learn how to use the `kubectl scale` command to adjust the number of
Kubectl How to Use Kubectl Config Set-Context If you are a Kubernetes user, you probably know how to use kubectl, the command-line tool for interacting with your cluster. But did you know that kubectl has a powerful feature that can make your life easier when working with multiple clusters, users, and namespaces? It’s called kubectl config
Docker 3 Best Ways to Run Docker in Docker Container Docker is a popular tool for building, running, and managing containers. But what if you want to run Docker inside a Docker container, for instance, in a CI pipeline? How can you achieve that? In this article, I will show you three different methods to run Docker in a Docker
What does gRPC Stand For? If you are a developer who works with distributed systems, you might have heard of gRPC, a framework for remote procedure calls (RPCs). But what role does gRPC play in modern applications setup, and why should you care about it? In this article, we will explore the meaning, architecture, and
Sidecar Container: What is it and How to use it (Examples) Have you ever wanted to add extra functionality to your main container without modifying its code or image? Or wanted to monitor, log, or secure your containerized application without affecting its performance? If so, you need to learn about Kubernetes’ sidecar containers. In this article, we’ll explore what a
DevOps SRE vs. DevOps: Understanding The Key Differences If you are interested in software development and IT operations, you may have heard of two popular terms: SRE and DevOps. But what do they mean, and how do they differ? Key Takeaway * SRE and DevOps are two approaches that aim to improve the reliability and speed of software development
How to Deploy Postgres on Kubernetes for a Scalable Web Application Postgres is a popular open-source relational database that offers many features and benefits for web applications. However, managing and scaling Postgres can be challenging, especially when you have to deal with high availability, backups, migrations, and security. In this article, we will show you how to deploy Postgres on Kubernetes
