2026 DevOps Roadmap: Linux to MLOps

☝️Headline: 🚀 21 Days Down, 79 to Go! #100DaysOfDevOps Challenge Body: Today marked a major shift in my DevOps journey—Git! 🛤️ As part of the KodeKloud 100 Days of DevOps challenge, Day 21 was all about setting up a Bare Git Repository on a storage server. Key Takeaways: ✅ SSH into storage servers to set up version control infrastructure. ✅ Understanding that --bare repositories are the backbone of central, collaborative workflows. ✅ Configuring remote repositories for team projects. It's amazing how much I've learned about Git and Linux in just three weeks. #DevOps #Git #KodeKloud #LearningJourney #VersionControl #100DaysOfDevOps

After years of working with DevOps tools, I realized that we use a core set of commands almost every single day, yet they’re rarely documented in one place. So I’ve started curating everything i.e Git, Terraform, Kubernetes, Linux and more into simple, practical cheat sheets on Hashnode.....with many more to come 🙌 . You can check it out here👇 https://lnkd.in/dWfnY9q2 . . Feel free to explore anytime and share your feedback! . #DevOps #Git #Terraform #Hashnode #LearningInPublic #TechBlog

Objective 703.2 of the Linux Professional Institute (LPI) DevOps Tools Engineer 2.0 exam covers Basic Kubernetes Operations, a key part of modern #DevOps. 🖥️⚙️ Explore this exam objective with Fabian Thorns and Uirá Ribeiro: https://lpi.org/5tqu #LPI #kubernetes #devops #cloudnative #containerorchestration #devopsengineer 

🚀 Docker Compose Case Study – Simplifying Multi-Container Applications Excited to share my latest hands-on learning experience with Docker Compose! 🔍 Objective: In this task, I explored how to efficiently manage multi-container applications using Docker Compose. I studied its structure, benefits, and implemented a real-world example from the official Docker documentation. 💡 What I Learned: ✔️ How Docker Compose simplifies multi-container setups ✔️ Understanding the docker-compose.yml structure ✔️ Managing services, networks, and volumes efficiently ✔️ Running and scaling applications with a single command 🛠️ Practical Implementation: I implemented the Docker Compose Quickstart project, where multiple services work together seamlessly—demonstrating real-world application orchestration. 🎯 Key Takeaway: Docker Compose makes development faster, cleaner, and more scalable by allowing developers to define and run multi-container environments effortlessly. #Docker #DockerCompose #DevOps #Containers #LearningByDoing #CloudComputing #SoftwareEngineering #RHCSA #Linux #Automation

HTTPS setup done… but Nginx wouldn’t start. Day 15 of #100DaysOfDevOps ✅ Today’s task was to configure Nginx with SSL/TLS using pre-provided certificates. The setup looked straightforward place the certs in the right directories and configure the server to listen on port 443 with HTTP/2. But Nginx kept failing to start. The issue? A small syntax mistake in the config file. Running nginx -t quickly pointed out the error and saved a lot of debugging time. Key takeaway: A missing closing } in the http block causes Nginx to fail at startup with a configuration error. Always run nginx -t first it catches syntax errors before they take down the service. Day 15 done. 85 to go 🚀 GitHub 👇 https://lnkd.in/dk8Frue7 #DevOps #Linux #Nginx #SSL #100DaysOfDevOps #LearningInPublic #SRE #DevOpsEngineer

🗓️ Day 24/100 — 100 Days of AWS & DevOps Challenge Today's task: create a feature branch from master in an existing Git repository. No code changes — just branch creation. $ cd /usr/src/kodekloudrepos/beta $ git checkout master $ git checkout -b xfusioncorp_beta Simple. But the discipline behind it matters more than the command. Creating a branch from the wrong source is one of the most common Git mistakes in collaborative environments. If you're on a half-finished feature branch and run `git checkout -b new-feature`, your new branch inherits all the in-progress, uncommitted history of where you were. Always confirm your source branch before creating from it. Full branching breakdown on GitHub 👇 https://lnkd.in/gMiKnjdP #DevOps #Git #VersionControl #Branching #Linux #100DaysOfDevOps #KodeKloud #LearningInPublic #CloudEngineering #GitOps #Infrastructure

Container virtualization is a key #tech behind modern software architectures. In episode 6 of the DevOps Tools Engineer 2.0 Introduction series, Fabian Thorns and Uirá Ribeiro explore #Docker & #Podman and their role in modern #DevOps workflows. Check it out: https://lpi.org/2pv9 Linux Professional Institute (LPI) #LPI #devops #containers #docker #podman #cloudnative #CI #CD #kubernetes #freesoftware

Container virtualization is a key #tech behind modern software architectures. In episode 6 of the DevOps Tools Engineer 2.0 Introduction series, Fabian Thorns and Uirá Ribeiro explore #Docker & #Podman and their role in modern #DevOps workflows. Check it out: https://lpi.org/2pv9 Linux Professional Institute (LPI) #LPI #devops #containers #docker #podman #cloudnative #CI #CD #kubernetes #freesoftware

🚀 Troubleshooting ImagePullBackOff in EKS A DevOps Lesson Learned while building an end-to-end DevOps CI/CD project, I encountered a frustrating error: ImagePullBackOff on Kubernetes despite the image existing locally and on Docker Hub. The Issue: ❌ My EKS cluster was running x86_64 (AMD64) nodes, but I was building Docker images on my ARM64 Mac. Kubernetes couldn't find a matching platform in the image manifest. The Solution: ✅ Build images for the correct architecture: docker buildx build --platform linux/amd64 -t username/image:tag --push . Or build for multiple platforms for maximum portability: docker buildx build --platform linux/amd64,linux/arm64 -t username/image:tag --push . Key Takeaway: Always verify your cluster node architecture and ensure your container images match. A simple kubectl get nodes can save hours of debugging! Pro Tip: Use docker buildx for multi-platform builds in production pipelines. #DevOps #Kubernetes #EKS #Docker #CICD #TroubleShooting #CloudNative

🚀 Kubernetes Monitoring with CLI – Back to the Basics Today I spent time working directly from the command line to monitor and manage my Kubernetes workloads — and it reminded me of something important: 👉 If you want to master Kubernetes, you must be comfortable with Linux and the CLI. Here are a few commands I used while managing deployments: -kubectl rollout undo deployment web-app → Roll back to a previous version -kubectl rollout history deployment web-app → View deployment revisions -kubectl delete deployment web-app → Clean up resources 💡 These commands are not just for exams like CKAD/KCNA — they are real-world DevOps skills used in production environments. Working from the CLI gives you: ✔️ Better control over your cluster ✔️ Faster troubleshooting ✔️ Deeper understanding of how Kubernetes actually works 🔥 My advice: -Don’t rely only on dashboards and GUIs. Learn the terminal. Learn Linux. That’s where real power is. -I’m continuing to build and document real-world Kubernetes projects — next step: scaling microservices and adding ingress. Let’s grow together 💻☁️ #Kubernetes #DevOps #CloudComputing #Linux #CKAD #KCNA #AWS #LearningInPublic