DevOps & Cloud (AWS, AZURE, GCP) Tech Free Learning

📱 30 Kubernetes Tutorials Each one focused on a key concept, tool, or best practice. 1. Kubernetes Architecture - https://lnkd.in/gSB2GyXp 2. High Availability - https://lnkd.in/gzYd97Ee 3. Best Practices (Design & Setup) - https://lnkd.in/gPUx8uNP 4. Minikube - https://lnkd.in/gAgcw2q6 5. Kubeadm - https://lnkd.in/gkCQAajB 6. Kubeconfig File - https://lnkd.in/gEnUdrj7 7. Vagrant VMs - https://lnkd.in/gtKNepyc 8. eksctl - https://lnkd.in/ghUDuDQx 9. kubectl - https://lnkd.in/gzbd7263 10. Kubernetes Cluster - https://lnkd.in/giaAps_S 11. Etcd - https://lnkd.in/g9icGcME 12. Kubernetes Pod - https://lnkd.in/gtGGyJR7 13. Init Containers - https://lnkd.in/gPaDpyUP 14. Daemonset - https://lnkd.in/gAM7pxrK 15. Pod Lifecycle - https://lnkd.in/gtwBJr3w 16. Kubernetes Ingress - https://lnkd.in/gN2RD3ei 17. Nginx Ingress - https://lnkd.in/ghvGtGS3 18. K8s YAML Manifests - https://lnkd.in/gJQ-pPJE 19. Alert Manager - https://lnkd.in/gHM6DnFE 20. EFK Stack - https://lnkd.in/gSC6bj37 21. K8s Logging - https://lnkd.in/g8VG6nti 22. Kustomize - https://lnkd.in/gziADVvS 23. Sealed Secrets - https://lnkd.in/gceD9mpU 24. Docker Image In K8s Pod - https://lnkd.in/g4qUgj4E 25. Jenkins Build Agents - https://lnkd.in/gf9R-qin 26. Kustomize Secret - https://lnkd.in/gW_eugbf 27. Deploy Argo CD - https://lnkd.in/gHUMhS7Q 28. Install Helm for K8s - https://lnkd.in/gn2DHbRz 29. MongoDB - https://lnkd.in/ga8DmNKb 30. Hashicorp Vault - https://lnkd.in/gB7EZYJT 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @devopsclassroom 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🌟 HCL DevOps interview questions 🌟 ℹ️ 1. Technical Round This round usually lasts 45–60 minutes, and covers a mix of practical, scenario-based, and conceptual questions from core DevOps tools and cloud services. 1. Explain your CI/CD pipeline design. Which tools did you use and why? 2. How do you create a Jenkins pipeline for multi-environment deployment (dev/stage/prod)? 3. What’s the difference between freestyle and pipeline jobs in Jenkins? 4. How do you handle Jenkins pipeline failures? Give a real-time issue and how you solved it. 5. Have you integrated code quality tools like SonarQube? How do you do it? 6. How do you write a production-ready Dockerfile? Any best practices? 7. Difference between CMD and ENTRYPOINT in Docker? 8. What is Docker Compose and where have you used it? 9. Explain how container orchestration works and why it's important. 10. What are pods, deployments, and services in Kubernetes? 11. How do you perform a rolling update in Kubernetes using a YAML file? 12. What’s a ConfigMap vs. Secret? How do you use them in k8s deployments? 13. How do you handle resource limits and requests in Kubernetes? 14. Which cloud provider have you worked with? What DevOps services did you use? 15. How do you manage infrastructure using Terraform in Azure/AWS? 16. What is the use of Terraform backend? Have you used remote state with locking? 17. How do you securely store secrets in cloud pipelines? (Azure Key Vault, AWS Secrets Manager) 18. Explain how you set up an auto-scaling group in cloud using Terraform. 19. How do you manage role-based access control in Jenkins or Kubernetes? 20. How do you rollback a faulty deployment using Git and CI tools? 21. Explain Gitflow and how your team used branching strategies in DevOps. 22. What is your approach to setting up logging and monitoring for infrastructure and apps? 23. Have you implemented DevSecOps practices? Share an example. ➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖ ℹ️ 2. HR Round Usually a 10–15 minute conversation, focusing on: 1. Brief intro and your career journey so far. 2. Why are you looking to move from your current organization? 3. Are you comfortable with rotational shifts or on-call support? 4. Are you willing to relocate/work in hybrid mode (if applicable)? 5. What is your current CTC, expected CTC, and notice period? 6. Do you have experience working with client-facing roles or global teams? 7. Where do you see yourself in the next 2–3 years? 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

⚡️Jenkins Tutorial For Beginners: 21+ Practical Guides https://lnkd.in/deezunqE ⚡️Jenkins Architecture Explained - Beginners Guide https://lnkd.in/dcE49EXw ⚡️How To Setup Highly Available Jenkins https://lnkd.in/dTbnsg6s 🔠 Jenkins Administration Tutorials ⚡️Install Jenkins on Ubuntu in 10 Easy Steps https://lnkd.in/dUDGXc34 ⚡️How to Setup Jenkins Agent Using SSH [Password & SSH Key] https://lnkd.in/d4iKkjs7 ⚡️How to Configure SSL on Jenkins Server https://lnkd.in/d9UpFgiR ⚡️How To Run Jenkins on Port 80: 4 Different Methods Explained https://lnkd.in/dpexCUub ⚡️How To Backup Jenkins Data and Configurations https://lnkd.in/dePTnDGX ⚡️How to Setup Custom UI Theme For Jenkins https://lnkd.in/dxdqcjWJ ⚡️Jenkins Setup Using AWS Autoscaling Group, Load Balancer & EFS https://lnkd.in/dizsnNjZ 🔠 Jenkins Pipeline Tutorials ⚡️Jenkins Pipeline Tutorial For Beginners https://lnkd.in/dryfkdVy ⚡️Jenkins Shared Library Tutorial For Beginners https://lnkd.in/dsAgwHFp ⚡️How to Use Parameters in Jenkins Declarative Pipeline https://lnkd.in/d3UgPxRA 🔠 Jenkins CI/CD Tutorials ⚡️Java Continuous Integration with Jenkins - Beginners Guide https://lnkd.in/d9Eujsp6 ⚡️Jenkins Automated Build Trigger On Github Pull Request https://lnkd.in/dFkNt3gm ⚡️How To Build Docker Image In Kubernetes Pod https://lnkd.in/dfxkmf_v ⚡️How to Setup Jenkins Email Notification (Detailed Guide) https://lnkd.in/dUbxPqvb 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🚀 From Docker to Kubernetes [v1.6.0] Release 🔥 Big new drop! We've added advanced topics and real-world strategies across Docker & Kubernetes—take your skills to the next level! 👨‍💻⚙️ 🐳 Docker Section – Expanded! 🔣 Added Docker Caching Strategies guide with advanced techniques and real-world examples 🔣 Added Docker Storage Drivers documentation covering types, configuration, and performance optimization 🔣 Added Docker Resource Management covering CPU, memory, storage, and network allocation ☸️ Kubernetes Section – Leveled Up! 🔣 Added StatefulSets & DaemonSets guide for managing stateful applications and node-level daemons 🔣 Added Advanced Scheduling & Affinity documentation covering node/pod affinity and complex scheduling 🔣 Added Kubernetes Multi-tenancy guide with isolation models and security considerations ✨ Enhancements 📝 New blog post covering all v1.5.0 highlights 💡 Improved code examples with production-grade configurations 🧠 Added comprehensive diagrams for complex concepts 🛜 Expanded security considerations across all new topics 🛠 Enhanced troubleshooting sections with practical solutions 📌 Dive in now & level up your DevOps journey! ➗ dockertokubernetes.live ✉️ Read more about v1.6.0: https://www.dockertokubernetes.live/blog/v1-6 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🚀 Master DevOps & Cloud — 📱 All the Right Repos in One Place! ➡️ DevOps Repositories Central 📌 https://repos.prodevopsguytech.com Looking to become a Professional DevOps Engineer? Start with the most useful GitHub repositories — all curated for learning, practice, and real-world implementation. 💡 What's inside? ✔️ DevOps & Cloud Learning Paths ✔️ Hands-On Labs & Projects ✔️ Infrastructure as Code (Terraform, Ansible, etc.) ✔️ CI/CD Pipelines ✔️ Kubernetes & Docker Repos ✔️ Interview Prep Resources ...and a lot more! ➗ Everything you need — organized, practical, and beginner-friendly. Perfect for leveling up or switching into DevOps/Cloud roles. 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🚨 Terraform important commands and concepts 1. terraform init: Initializes a Terraform working directory. 2. terraform validate: Validates the Terraform configuration files. 3. terraform fmt: Formats the Terraform configuration files. ▶️ Section 2: Infrastructure Management 4. terraform apply: Applies the configuration to create or update infrastructure. 5. terraform destroy: Destroys the infrastructure managed by Terraform. 6. terraform refresh: Refreshes the Terraform state to match the actual infrastructure. 7. terraform show: Shows the Terraform state and configuration. ▶️ Section 3: State Management 8. terraform state list: Lists the resources in the Terraform state. 9. terraform state show: Shows the details of a specific resource in the Terraform state. 10. terraform state rm: Removes a resource from the Terraform state. 11. terraform state mv: Moves a resource from one state to another. ▶️ Section 4: Module Management 12. terraform get: Downloads and installs Terraform modules. 13. terraform module: Manages Terraform modules. 14. terraform module init: Initializes a Terraform module. ▶️ Section 5: Provider Management 15. terraform providers: Lists the available Terraform providers. 16. terraform provider: Manages Terraform providers. 17. terraform provider init: Initializes a Terraform provider. ▶️ Section 6: Workspace Management 18. terraform workspace: Manages Terraform workspaces. 19. terraform workspace new: Creates a new Terraform workspace. 20. terraform workspace select: Selects a Terraform workspace. ▶️ Section 7: Debugging and Troubleshooting 21. terraform debug: Enables debug logging for Terraform. 22. terraform logs: Shows the Terraform logs. 23. terraform console: Opens a Terraform console for interactive debugging. ▶️ Section 8: Import and Export 24. terraform import: Imports existing infrastructure into Terraform. 25. terraform export: Exports the Terraform state to a file. ▶️ Section 9: Miscellaneous 26. terraform version: Shows the Terraform version. 27. terraform help: Shows the Terraform help. 28. terraform upgrade: Upgrades Terraform to the latest version. ▶️ Section 10: Advanced Topics 29. terraform console: Opens a Terraform console for interactive debugging. 30. terraform graph: Generates a graph of the Terraform configuration. 31. terraform output: Shows the output of a Terraform configuration. ▶️ Section 11: Terraform CLI 32. terraform cli: Manages the Terraform CLI. 33. terraform cli config: Configures the Terraform CLI. ▶️ Section 12: Terraform Configuration 34. terraform config: Manages the Terraform configuration. 35. terraform config init: Initializes a Terraform configuration. ▶️ Section 13: Terraform State Backend 36. terraform state backend: Manages the Terraform state backend. 37. terraform state backend init: Initializes a Terraform state backend. ▶️ Section 14: Terraform Workspaces 38. terraform workspace: Manages Terraform workspaces. 39. terraform workspace new: Creates a new Terraform workspace. ✈️ 𝗙𝗼𝗹𝗹𝗼𝘄 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

⚡ ChatGPT Prompts for DevOps and Cloud Learners ⬇️

We see too many struggling with even basic prompts.

Here we created this to help you. 📌 Note: ChatGPT isn't a replacement for official documentation.

It can hallucinate, treat it as your guide.

📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

📱 In this complete bash scripting tutorial you'll learn everything you need to get started with shell scripting. Instead of memorizing random commands and syntax, you'll build an actual automation script by following a practical use case. 🎯 What you'll learn: ➡️ Variables, loops, and conditionals through hands-on examples ➡️ Transform 45 minutes of manual work into a 30-second script ➡️ Real log analysis automation you can use at work tomorrow ➡️ Step-by-step from basic commands to full automation 👩‍💻 By the end, you'll have: ➡️ A complete log analysis script that scans multiple files ➡️ The confidence to automate your own repetitive tasks ➡️ Practical scripting skills that make you more valuable 📱 https://youtu.be/PNhq_4d-5ek?si=qKxCHR8xrqSJHbKF 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

#️⃣ Must-Know 📱 GitHub Interview Questions ❓ Brush up before your next DevOps/Cloud/Developer interview! 🖥⚙️ 1. How does GitHub Actions work and how do you create a custom workflow? 2. What is the difference between git pull and git fetch in a GitHub repo context? 3. How can you resolve a merge conflict in GitHub? 4. Explain the concept of GitHub forks vs. branches. 5. How do you enforce protected branches and what is their purpose? 6. How can you trigger a GitHub Action only when code is pushed to a specific folder? 7. What is the .github directory used for in repositories? 8. How do you use GitHub CLI and what are its real-world benefits? 9. What is the difference between GitHub Projects and GitHub Issues? 10. How do you manage secrets in GitHub Actions securely? 11. What are GitHub Environments and how do they differ from branches? 12. How would you rollback a release deployed via GitHub Actions? 13. How do GitHub Codespaces help in faster development onboarding? 14. What’s the difference between squash merge, rebase, and regular merge on GitHub? 15. How do you set up branch rules for CI/CD pipelines using GitHub Actions? 🔠Hard level: 1. How do you handle secrets rotation dynamically in GitHub Actions without exposing credentials? 2. Explain how matrix builds work in GitHub Actions and when to use them. 3. How do you implement monorepo CI/CD with GitHub Actions while minimizing unnecessary job runs? 4. Describe a secure GitOps workflow using GitHub and ArgoCD. 5. How would you set up end-to-end testing across microservices using GitHub Actions workflows? 6. How do you audit GitHub enterprise repositories for compliance and security best practices? 7. What are the limitations of GitHub Actions compared to other CI/CD tools like GitLab or Jenkins? 8. How can you customize self-hosted GitHub Action runners and manage their scale? 9. Describe a real-world use case for composite actions and how you version them. 10. How do you prevent secret leakage during pull request builds in public GitHub repositories? 11. How can you manage cross-repo dependencies and coordinated releases using GitHub Workflows? 12. What’s the best way to handle rollback strategies in GitHub-based CD pipelines? 13. How do you integrate OPA/Gatekeeper or policy-as-code tools in GitHub Actions? 14. How can GitHub’s GraphQL API help in automating repo health checks and metrics? 15. How do you perform static code analysis + security scans (like SAST/Dependency Review) automatically on every PR? 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🚀 New Project Alert: Advanced CI/CD Pipeline! 🚀 Deploy a 3-Tier Microservice Voting App with ArgoCD & Azure DevOps Ready to master enterprise-level DevOps? This comprehensive project will take you through building a complete CI/CD pipeline from scratch! 🔥 🔴 What You'll Build: - 3-tier microservice voting application - End-to-end CI/CD automation - Production-ready Kubernetes deployment 🔴 Tech Stack: - Azure DevOps Pipeline - ArgoCD (GitOps) - Azure Kubernetes Service (AKS) - Docker & Docker Compose - Azure Container Registry (ACR) 🟢 Project Stages: 🟢 Stage 1: Continuous Integration ✅ Local deployment with Docker-Compose ✅ Azure DevOps project setup ✅ Self-hosted pipeline agents ✅ Multi-microservice CI scripts 🟢 Stage 2: Continuous Delivery ✅ Azure Kubernetes Service (AKS) setup ✅ ArgoCD installation & configuration ✅ Automated image updates ✅ Complete CICD verification 🎓 Perfect For: - DevOps Engineers - Cloud Architects - Kubernetes Enthusiasts - CI/CD Pipeline Specialists 🔥 Key Learning Outcomes: - GitOps methodology with ArgoCD - Azure cloud services integration - Kubernetes orchestration - Pipeline automation best practices Ready to level up your DevOps skills? Let's build something amazing together! 💪

Let’s build, automate, and innovate together! 💡

📱 GitHub: https://github.com/NotHarshhaa/DevOps-Projects/tree/master/DevOps-Project-37 ➗ View on Web: https://projects.prodevopsguytech.com/blog/DevOps-Project-37 Check it out & give it a ⭐️ if it helps you! 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

➡️ Tech Mahindra - DevOps Engineer interview Questions ⬅️ ➡️ Linux & Shell Scripting • How do you check running processes in Linux? • What’s the difference between top, htop, and ps? • How to schedule a cron job every 15 minutes? • What is the difference between hard link and soft link? • How to find which process is using high memory? ➡️ Docker & Containers • What is the difference between an image and a container? • How to persist data across container restarts? • What is the use of docker-compose? • How do you check logs of a specific container? • How to expose a container to the outside world? ➡️ Jenkins & CI/CD • Explain a typical CI/CD pipeline you’ve worked on. • Difference between Declarative and Scripted pipeline? • How to trigger a Jenkins job when code is pushed to GitHub? • How do you handle secrets in Jenkins pipelines? • How to pass parameters between stages? ➡️ Git & Version Control • How do you resolve merge conflicts? • Difference between git pull, git fetch, and git clone? • Use case of git stash. • What is the .gitignore file and how does it work? • What’s the difference between git rebase and git merge? ➡️ Terraform & Infrastructure as Code • How does Terraform maintain the state of resources? • What are Terraform modules? • How to manage sensitive variables in Terraform? • What is the purpose of terraform validate and terraform fmt? • How do you handle provisioning in different environments (dev/stage/prod)? ➡️ AWS & Cloud • How to troubleshoot SSH issues in an EC2 instance? • What is the difference between EBS, S3, and EFS? • How does IAM policy differ from IAM role? • Difference between security group and NACL? • How to set up auto-scaling for an application? ➡️ Kubernetes (K8s) • Difference between Deployment and StatefulSet? • What is a DaemonSet used for? • How does a Service in Kubernetes work? • What is a ConfigMap vs Secret? • What are taints and tolerations? • How do liveness and readiness probes work? • How to troubleshoot a pod stuck in CrashLoopBackOff? 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @devopsclassroom 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

✨ Interview Questions for 18 LPA - Cloud & DevOps Engineer Role ✅ ⚡️L1 & L2 level questions related to AWS, Terraform, Kubernetes, Docker, Git ⚡️Level 1 - 1. cicd workflow, what kind of pipeline 2. use of webhook 3. purpose of webhook 4. stages of pipeline... 5. shared libraries in jenkins? 6. how do we define shared libraries? 7. how are shared libraries written? 8. how do you define a pipeline and call it? 9. what kind of app you deploy on the pipeline? 10. basic structure, folder structure of helm? 11. what command are you using deployment in helm 12. in the Jenkins pipeline, the pipeline is running successfully but the build is not happening, what are the issues? 13. kubernetes, what are the errors you are getting, why they come and how you resolve? 14. explain the crash loop back off, 15. image pull error? 16. command to go inside a pod? 17. how can you create the kubernetes class? 18. what are the steps to create the cluster? 19. what is the master node and other node? 20. code to create a cluster using terraform? 21. stages in docker images? 22. DB entry point, CMD 23. why do we use entrypoint, CMD 24. DB ec2, eks, ecs 25. command to connect ecs 26. which tool are you using for deployment? 27. which registry for storing the docker images? ⚡️Level 2 - 1. branching strategy? 2. your release branch will break, then how u will avoid this kind of issues, then how do you merge? 3. in production having some bugs, how will you resolve? 4. typical deployment flow? 5. cicd workflow? 6. how do we do a full quality check? 7. jenkins file, different stages... 8. shared libraries in jenkins file? 9. typical structure of shared libraries... 10. are you aware of security scanning tools? 11. how do you pass the environment variables on docker build command. 12. what services do you use for storing the images? 13. DB, how do you establish the connection? 14. how do you scan the images at the registry level? 15. any extension you are using for image scanning? 16. authentication of eks cluster? 17. storing the secrets? 18. how to create lambda function, how it's taking the artifacts. 19. options on lambda to push the artifacts? 20. what is email signing and helm chart signing? 21. which tool for signing the helm chart? 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @devopsclassroom 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🌟 Azure DevOps: Zero to Hero Series 🌟 Hey everyone! 🚀 Ready to elevate your DevOps skills? Check out our comprehensive "Azure DevOps Zero to Hero" series on Dev.to! This series covers everything you need to know about Azure DevOps, from the basics to advanced concepts, with hands-on demos and real-world projects. 🖥 Read the full series here: Azure DevOps Zero to Hero Series ➡️What You'll Learn: 1. Introduction to Azure DevOps - Understanding DevOps and its importance - Overview of Azure DevOps services - Setting up your Azure DevOps environment 2. Azure Boards and Agile Project Management - Managing work items with Azure Boards - Implementing Agile, Scrum, and Kanban processes - Customizing dashboards and queries 3. Mastering Git and Source Control - Introduction to Git and Azure Repos - Branching, merging, and pull requests - Managing repositories and code reviews 4. Build and Release Pipelines - Creating and configuring build pipelines - Continuous Integration (CI) and Continuous Deployment (CD) - Using Azure Pipelines for automated deployments 5. Azure Artifacts and Test Plans - Managing packages with Azure Artifacts - Setting up and running test plans - Ensuring code quality and compliance ➡️Why Follow This Series? - Hands-On Demos: Each article includes practical demos to help you apply what you learn. - Real-World Projects: Work on real projects to gain practical experience. - Community Support: Join our community discussions and collaborate with fellow learners.

Don't miss out on this opportunity to become an Azure DevOps expert! Whether you're a beginner or looking to enhance your skills, this series has something for everyone.

📱 𝗙𝗼𝗹𝗹𝗼𝘄 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🚀 End-to-End DevOps Project on AWS Build & deploy a Cloud-Native Full-Stack Application using Terraform, Jenkins, Docker & Kubernetes – all on AWS! 💥 📱 Source Code: https://github.com/NotHarshhaa/Cloud-Native-DevOps-Project 🏗 Infrastructure as Code – Terraform ✅ Automated infra provisioning with Terraform (state managed via S3) • VPC with 3 subnets:  • Public → Bastion Host, VPN, ALB (Ingress)  • Private → EKS Cluster  • DB → RDS (MySQL) • Route53 for DNS + EFS for storage + CloudFront CDN ☸️ Kubernetes Architecture – EKS • ALB + Ingress Controller for routing • Microservices exposed via Services • Managed with Deployments, Helm & ConfigMaps • EFS volumes for persistent data • Clean, modular microservices architecture 🚀 CI/CD Pipeline – Jenkins End-to-End pipeline triggered by GitHub Webhooks: 1️⃣ Install dependencies 2️⃣ SonarQube code analysis 3️⃣ Terraform infra provisioning 4️⃣ Docker build & push to ECR 5️⃣ Helm-based K8s deployment 🎯 A complete real-world DevOps project to boost your portfolio and sharpen your cloud-native skills. Check it out! 🔥 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🚀 From Docker to Kubernetes [v1.5.0] Release 🔥 Big new drop! We've added advanced topics and real-world strategies across Docker & Kubernetes—take your skills to the next level! 👨‍💻⚙️ 🐳 Docker Section – Expanded! 🔣 Added Content Trust & Image Signing guide for secure software supply chains 🔣 Added Docker for AI/ML Workloads covering containerization strategies for machine learning 🔣 Added Docker in Edge Computing explaining deployment patterns for edge environments 🔣 Added Docker Plugins & Runtime Extensions for extending Docker's functionality ☸️ Kubernetes Section – Leveled Up! 🔣 Added Cost Optimization & FinOps guide with resource management and chargeback models 🔣 Added Backup & Disaster Recovery documentation covering etcd, PV backups, and recovery strategies 🔣 Added Policy Management with OPA guide featuring Gatekeeper implementation and compliance reporting ✨ Enhancements 📝 New blog post covering all v1.5.0 highlights 💡 Improved examples for real-world production deployments 🧠 Added advanced security considerations across all topics 🛜 Expanded Kubernetes documentation with enterprise-focused topics 🛠 Enhanced troubleshooting sections with practical solutions 📌 Dive in now & level up your DevOps journey! ➗ dockertokubernetes.live ✉️ Read more about v1.5.0: https://www.dockertokubernetes.live/blog/v1-5 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

❗️ Deloitte Interview Experience 🟣Position : DevOps Engineer 🟣𝗥𝗼𝘂𝗻𝗱 𝟭: 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗰𝗿𝗲𝗲𝗻𝗶𝗻𝗴 1. Explain the CI/CD workflow you follow and the kind of pipeline you use. How do you define and invoke pipelines in Jenkins? 2. What are shared libraries in Jenkins, and how are they written and defined? 3. What kind of applications do you deploy using Jenkins pipelines, and what deployment tools do you use? 4. If the Jenkins pipeline runs but the build doesn’t happen, what possible issues could be causing it? 5. What is the purpose of a webhook, and how is it used in a CI/CD pipeline? 6. How do you create and manage Kubernetes clusters (using tools like Terraform), and what are the master and worker nodes? 7. What are common Kubernetes errors you’ve faced (like CrashLoopBackOff, ImagePullError), and how did you resolve them? 8. What is the command to access a pod and how can you define or create a Kubernetes class or object? 9. Explain the folder structure of a basic Helm chart. What commands do you use to deploy with Helm? 10. What are the stages in a Docker image build? Why do we use ENTRYPOINT and CMD instructions? 11. How do you manage and connect services like DBs, EC2, EKS, or ECS? Include the command to connect to ECS. 12. Which container registry do you use for storing Docker images? 🟣𝗥𝗼𝘂𝗻𝗱 𝟮: 𝗜𝗻-𝗱𝗲𝗽𝘁𝗵 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗰𝗿𝗲𝗲𝗻𝗶𝗻𝗴 1. What branching strategy do you follow, and how do you handle merges to avoid breaking the release branch? If a bug appears in production, what’s your approach to resolving it? 2. Describe your typical deployment flow and CI/CD workflow. What stages do you define in your Jenkins pipeline, and how do you ensure full quality checks during deployment? 3. How do you use Jenkins shared libraries? Explain their typical structure and how they are integrated into your Jenkinsfiles. 4. Are you aware of security scanning tools? How do you scan Docker images—both during build and at the registry level? Are you using any extensions or tools for image scanning? 5. How do you pass environment variables during Docker build commands? What services do you use for storing Docker images? 6. How do you establish a connection with databases in your deployments or infrastructure setup? 7. How do you handle authentication for EKS clusters and store secrets securely in your environment? 8. How do you create AWS Lambda functions and manage the artifacts for deployment? What options do you use to push artifacts to Lambda? 9. What is email signing and Helm chart signing? Which tools do you use to sign Helm charts? 🟣𝗥𝗼𝘂𝗻𝗱 𝟯: 𝗛𝗠 𝗥𝗼𝘂𝗻𝗱 (𝗛𝗶𝗿𝗶𝗻𝗴 𝗠𝗮𝗻𝗮𝗴𝗲𝗿) 1. Project experiences. 2. Day-to-day responsibilities. 3. Light behavioral questions. 4. Teamwork & Culture Fit questions. 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @devopsclassroom 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🔖 Surprising but true: Many Cloud Engineers are unaware of VPC limits and its components! Know your limits before they limit you. 1️⃣ VPC & Subnets 🚫 VPCs per Region = 05 (You can increase this limit so that you can have hundreds of VPCs per Region.) 🚫 Subnets per VPC = 200 🚫 IPv4 CIDR blocks per VPC = 05 (Adjustable up to 50) 🚫 IPv6 CIDR blocks per VPC = 05 (Adjustable up to 50) 2️⃣ Elastic IP addresses 🚫 Elastic IP addresses per Region = 05 (Adjustable = Yes) 🚫 Elastic IP addresses per public NAT gateway = 02 (Adjustable = Yes) 3️⃣ Gateways 🚫 Egress-only internet gateways per Region = 05 (Adjustable = Yes) 🚫 Internet gateways per Region = 05 (Adjustable = Yes) 🚫 NAT gateways per Availability Zone = 05 (Adjustable = Yes) 🚫 Private IP address quota per NAT gateway = 08 (Adjustable = Yes) 🚫 Carrier gateways per VPC = 01 (Adjustable = No) 4️⃣ Network ACLs 🚫 Network ACLs per VPC = 200 (Adjustable = Yes) 🚫 Rules per network ACL = 20 (Adjustable = Yes) 5️⃣ Network interfaces 🚫 Network interfaces per instance = Varies by instance type (Adjustable = No) 🚫 Network interfaces per Region = 5,000 (Adjustable = Yes) 6️⃣ Route tables 🚫 Route tables per VPC = 200 (Adjustable = Yes) 🚫 Routes per route table (non-propagated routes) = 50 (Adjustable = Yes) 🚫 Propagated routes per route table = 100 (Adjustable = No) 7️⃣ Security groups 🚫 VPC security groups per Region = 2,500 (Adjustable = Yes) 🚫 Inbound or outbound rules per security group = 60 (Adjustable = Yes) 🚫 Security groups per network interface = 05 (Adjustable = up to 16) 8️⃣ VPC subnet sharing 🚫 Participant accounts per VPC = 100 (Adjustable = Yes) 🚫 Subnets that can be shared with an account = 100 (Adjustable = Yes) 9️⃣ Network Address Usage 🚫 Network Address Usage = 64,000 (Adjustable up to to 256,000) 🚫 Peered Network Address Usage = 128,000 (Adjustable up to 512,000)) 🔟 VPC peering connection 🚫 Active VPC peering connections per VPC = 50 (Adjustable up to 125) 🚫 Outstanding VPC peering connection requests = 25 (Adjustable = Yes) 1️⃣ 1️⃣ Site-to-Site VPN resources 🚫 Customer gateways per Region = 50 (Adjustable = Yes) 🚫 Virtual private gateways per Region = 05 (Adjustable = Yes) 🚫 Site-to-Site VPN connections per Region = 50 (Adjustable = Yes) 🚫 Site-to-Site VPN connections per virtual private gateway = 10 (Adjustable = Yes) 1️⃣ 2️⃣ AWS Client VPN quotas 🚫 Authorization rules per Client VPN endpoint = 50 (Adjustable = Yes) 🚫 Client VPN endpoints per Region = 05 (Adjustable = Yes) 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🎉 Coming Soon: Awesome DevOps + Cloud Resources Explorer Hey folks! 😀 We’ve been working and building a new open-source project that brings together the best DevOps and Cloud Engineering resources — all curated and categorized in a clean, user-friendly UI! ⚙️☁️ 📦 What's inside? A fully searchable site that includes: 🔹 Tools & CLIs 🔹 Starter Projects & Boilerplates 🔹 Utilities & Services 🔹 Guides & Documentation 🔹 Platforms & Frameworks 🔹 Hands-on Labs & Sandboxes 🔹 Self-Hosted Tools 🔹 DevSecOps & Security Tools 🔹 Observability (Logging, Monitoring, Tracing) 🔹 CI/CD Pipelines & Workflow Tools 🔹 Infrastructure as Code (IaC) 🔹 GitOps & Automation 🔹 Container & Orchestration Tools 🔹 Cloud Provider-Specific Resources (AWS, Azure, GCP, etc.) 🔹 Learning Paths & Roadmaps 🔹 Beginner-Friendly Tools & Tutorials 🔹 Trending or Most Popular Tools 🔹 Open Source Projects 🔹 Free Tier or Trial Tools 🔹 Miscellaneous & Experimental Tools Everything you need — neatly organized in one place. No more messy bookmarks or scattered docs 🧠✨ 📌 Project Name: Awesome UI Resources for DevOps & Cloud Engineers More Details coming soon...

A visual, categorized hub to explore DevOps & Cloud tools with ease.

Excited to share more soon — contributions and suggestions are always welcome! 🙌 📱 𝐅𝐨𝐥𝐥𝐨𝐰 𝐦𝐞 𝐨𝐧 𝐆𝐢𝐭𝐇𝐮𝐛 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐃𝐞𝐯𝐎𝐩𝐬 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 : https://github.com/NotHarshhaa 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs