--- title: "#90daysofdevops-devops-projectdevelopment-nonitbackground-github-docker-cloudplatforms-ec2-aws-elasticbeanstalk-lambdafunctions-devopspipelines-terraform-jenkins-docker-devsecops-scm-git-gitlab-bitbucket-buildtools-griddle-maven-ant-msbuild-monitoringtools-prometheus-grafana-ansible-ai-chatgpt-valueaddition-realworldproblems articles | Hashnode" description: "Explore 189 articles tagged #90daysofdevops-devops-projectdevelopment-nonitbackground-github-docker-cloudplatforms-ec2-aws-elasticbeanstalk-lambdafunctions-devopspipelines-terraform-jenkins-docker-devsecops-scm-git-gitlab-bitbucket-buildtools-griddle-maven-ant-msbuild-monitoringtools-prometheus-grafana-ansible-ai-chatgpt-valueaddition-realworldproblems on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/90daysofdevops-devops-projectdevelopment-nonitbackground-github-docker-cloudplatforms-ec2-aws-elasticbeanstalk-lambdafunctions-devopspipelines-terraform-jenkins-docker-devsecops-scm-git-gitlab-bitbucket-buildtools-griddle-maven-ant-msbuild-monitoringtools-prometheus-grafana-ansible-ai-chatgpt-valueaddition-realworldproblems" --- Tag # #90daysofdevops-devops-projectdevelopment-nonitbackground-github-docker-cloudplatforms-ec2-aws-elasticbeanstalk-lambdafunctions-devopspipelines-terraform-jenkins-docker-devsecops-scm-git-gitlab-bitbucket-buildtools-griddle-maven-ant-msbuild-monitoringtools-prometheus-grafana-ansible-ai-chatgpt-valueaddition-realworldproblems 189 posts · 68 followers [Prasad Gangurde](https://hashnode.com/@prasad-gangurde) · [Feb 7](https://hashnode.com/posts/day-03-linux-commands-practice/69875fc8029c2cd59e5521da) ### [Day 03 – Linux Commands Practice](https://90daysofdevopslearning.hashnode.dev/day-03-linux-commands-practice?utm_source=hashnode&utm_medium=feed) Cheatsheet of Linux Commands: 1. Process Management: ps - Report a snapshot of the current processes. top - Display Linux processes. htop - Interactive process viewer, same as top but interactive. atop - Advanced System & Process Monitor. uptime... 2 min read · [90daysofdevopslearning.hashnode.dev](https://90daysofdevopslearning.hashnode.dev/day-03-linux-commands-practice?utm_source=hashnode&utm_medium=feed) [Prasad Gangurde](https://hashnode.com/@prasad-gangurde) · [Feb 3](https://hashnode.com/posts/linux-architecture-processes-and-systemd/6982629ddf6a77ae15dfbf0b) ### [Linux Architecture, Processes, and systemd](https://90daysofdevopslearning.hashnode.dev/linux-architecture-processes-and-systemd?utm_source=hashnode&utm_medium=feed) As a DevOps engineer, you aren't just a user of the operating system; you are its mechanic. When a production server crashes or a deployment hangs, typing random commands won't save you. You need to understand the engine. Today, we are going deep (bu... 4 min read · [90daysofdevopslearning.hashnode.dev](https://90daysofdevopslearning.hashnode.dev/linux-architecture-processes-and-systemd?utm_source=hashnode&utm_medium=feed) [Ashutosh Kandpal](https://hashnode.com/@ashutoshkandpal) · [Jul 31, 2025](https://hashnode.com/posts/guide-to-building-a-production-ready-microservice-app-step-by-step-with-nodejs-react-docker-and-azure/68ab10e6684dc97382d342dc) ### [Guide to Building a Production-Ready Microservice App: Step-by-Step with Node.js, React, Docker, and Azure](https://microserviceapp.hashnode.dev/guide-to-building-a-production-ready-microservice-app-step-by-step-with-nodejs-react-docker-and-azure?utm_source=hashnode&utm_medium=feed) Learn how to build a scalable, production-ready microservice application using Node.js, React, MongoDB, Docker, and Azure. This comprehensive guide covers f 7 min read · [microserviceapp.hashnode.dev](https://microserviceapp.hashnode.dev/guide-to-building-a-production-ready-microservice-app-step-by-step-with-nodejs-react-docker-and-azure?utm_source=hashnode&utm_medium=feed) [Mayuresh Patil](https://hashnode.com/@mayuresh1008) · [Jul 25, 2025](https://hashnode.com/posts/day-5-of-90daysofdevops/688398d6a781055c12bddf72) ### [Day 5 of #90DaysOfDevOps:](https://mayureshpatildevops.hashnode.dev/day-5-of-90daysofdevops?utm_source=hashnode&utm_medium=feed) Advanced Linux Shell Scripting + User Management Have you ever wondered how DevOps engineers handle repetitive tasks like creating 90 folders or backing up large directories — without typing 90 commands? Let me show you how Linux Shell Scripting, Cro... 3 min read · [mayureshpatildevops.hashnode.dev](https://mayureshpatildevops.hashnode.dev/day-5-of-90daysofdevops?utm_source=hashnode&utm_medium=feed) [Aditya Tiwary](https://hashnode.com/@aditya86) · [Jul 19, 2025](https://hashnode.com/posts/day2software-development-life-cycle-and-linux-basics/687b754f1fc1f9381f7934ad) ### [Day2:Software Development Life Cycle & Linux Basics](https://100sdaysofdevops.hashnode.dev/day2software-development-life-cycle-and-linux-basics?utm_source=hashnode&utm_medium=feed) Diagram to understand SDLC 🏡 1. Planning & Feasibility What you do: Decide what the app should do—e.g., let teams add/edit to-do items, real-time sync, secure login. Why it matters: Sets the foundation—scope, budget, timeline, feasibility (can thi... 4 min read · [100sdaysofdevops.hashnode.dev](https://100sdaysofdevops.hashnode.dev/day2software-development-life-cycle-and-linux-basics?utm_source=hashnode&utm_medium=feed) [Yuvraj Nath Chouhan](https://hashnode.com/@Yuvrajdevops) · [Jun 4, 2025](https://hashnode.com/posts/day-35-mastering-configmaps-and-secrets-in-kubernetes/68400b4b82563f09ba8b1d92) ### [Day 35: Mastering ConfigMaps and Secrets in Kubernetes🔒🔑](https://yuvrajdevops.hashnode.dev/day-35-mastering-configmaps-and-secrets-in-kubernetes?utm_source=hashnode&utm_medium=feed) What are ConfigMaps and Secrets in k8s In Kubernetes, ConfigMaps and Secrets are used to store configuration data and secrets, respectively. ConfigMaps store configuration data as key-value pairs, while Secrets store sensitive data in an encrypted fo... 3 min read · [yuvrajdevops.hashnode.dev](https://yuvrajdevops.hashnode.dev/day-35-mastering-configmaps-and-secrets-in-kubernetes?utm_source=hashnode&utm_medium=feed) [Yuvraj Nath Chouhan](https://hashnode.com/@Yuvrajdevops) · [Jun 2, 2025](https://hashnode.com/posts/day-33-task-working-with-namespaces-and-services-in-kubernetes/683d5f62feae7eef64215576) ### [Day 33 Task: Working with Namespaces and Services in Kubernetes](https://yuvrajdevops.hashnode.dev/day-33-task-working-with-namespaces-and-services-in-kubernetes?utm_source=hashnode&utm_medium=feed) What are Namespaces and Services in k8s In Kubernetes, Namespaces are used to create isolated environments for resources. Each Namespace is like a separate cluster within the same physical cluster. Services are used to expose your Pods and Deployment... 2 min read · [yuvrajdevops.hashnode.dev](https://yuvrajdevops.hashnode.dev/day-33-task-working-with-namespaces-and-services-in-kubernetes?utm_source=hashnode&utm_medium=feed) [Yuvraj Nath Chouhan](https://hashnode.com/@Yuvrajdevops) · [May 31, 2025](https://hashnode.com/posts/day-31-task-launching-your-first-kubernetes-cluster-with-nginx-running/683b5922b0249b51f3309dbd) ### [Day 31 Task: Launching your First Kubernetes Cluster with Nginx running](https://yuvrajdevops.hashnode.dev/day-31-task-launching-your-first-kubernetes-cluster-with-nginx-running?utm_source=hashnode&utm_medium=feed) What about doing some hands-on now? Let's read about minikube and implement kubeadm in our local machine What is minikube? Minikube is a tool that quickly sets up a local Kubernetes cluster on macOS, Linux, and Windows. It can deploy as a VM, a co... 3 min read · [yuvrajdevops.hashnode.dev](https://yuvrajdevops.hashnode.dev/day-31-task-launching-your-first-kubernetes-cluster-with-nginx-running?utm_source=hashnode&utm_medium=feed) [Yuvraj Nath Chouhan](https://hashnode.com/@Yuvrajdevops) · [May 31, 2025](https://hashnode.com/posts/day-32-task-launching-your-kubernetes-cluster-with-deployment/683b5a9be3feebc702744467) ### [Day 32 Task: Launching your Kubernetes Cluster with Deployment](https://yuvrajdevops.hashnode.dev/day-32-task-launching-your-kubernetes-cluster-with-deployment?utm_source=hashnode&utm_medium=feed) What is Deployment in k8s A Deployment provides a configuration for updates for Pods and ReplicaSets. You describe a desired state in a Deployment, and the Deployment Controller changes the actual state to the desired state at a controlled rate. You... 1 min read · [yuvrajdevops.hashnode.dev](https://yuvrajdevops.hashnode.dev/day-32-task-launching-your-kubernetes-cluster-with-deployment?utm_source=hashnode&utm_medium=feed) [Yuvraj Nath Chouhan](https://hashnode.com/@Yuvrajdevops) · [May 27, 2025](https://hashnode.com/posts/day-27-task-jenkins-declarative-pipeline-with-docker/68353eff9a05c46365201d31) ### [Day 27 Task: Jenkins Declarative Pipeline with Docker](https://yuvrajdevops.hashnode.dev/day-27-task-jenkins-declarative-pipeline-with-docker?utm_source=hashnode&utm_medium=feed) Use your Docker Build and Run Knowledge docker build - you can use sh 'docker build . -t ' in your pipeline stage block to run the docker build command. (Make sure you have docker installed with correct permissions. docker run: you can use sh ... 3 min read · [yuvrajdevops.hashnode.dev](https://yuvrajdevops.hashnode.dev/day-27-task-jenkins-declarative-pipeline-with-docker?utm_source=hashnode&utm_medium=feed)