The DevOps Classroom

🎯 Make your DevOps/Cloud resume impossible to ignore. 😬Most engineers write the same bullets: Kubernetes, Docker, Jenkins, Terraform, AWS, Helm, Prometheus… These are tools, not outcomes. Hiring managers want to know if you can keep platforms stable, scalable and predictable in production. They ask: 👉 “Can this engineer keep my platform healthy during real-world traffic and failures?” 😬Write transformations, not tool lists: • Don’t say “used Kubernetes.” Say how deployments survived node failures and reduced downtime. • Don’t say “built pipelines.” Say how CI/CD shipped features safely without breaking production. • Don’t say “wrote Terraform.” Say how infra patterns made environments reproducible and secure. • Don’t say “configured Prometheus.” Say how alerting cut MTTR and protected SLAs. • Don’t say “saved cost.” Say how you automated power-off of dev workloads during off hours, right-sized VMs, and removed idle resources to cut monthly cloud spend. • Don’t say “configured networking.” Say how you centralized networking in a single account, enforced VPC standards, and simplified cross-team connectivity. • Don’t say “improved security.” Say how you implemented least privilege IAM, automated key rotation, and passed an external audit with zero critical findings. • Don’t say “scaled the app.” Say how you designed autoscaling and capacity plans that maintained 99.x percent availability during peak traffic. These are the bullets hiring managers remember. These bullets get interviews. 📱 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

🚀 Final Round Interview Completed at Neurealm (Senior DevOps Engineer) 🚀 Today my friend appeared for the final technical round at Neurealm, and it was a complete deep dive into real-world DevOps scenarios. The panel focused heavily on Kubernetes, Helm, Jenkins, AWS, Terraform, Prometheus & Grafana — all scenario-based and practical. Sharing the questions here so others preparing for similar roles can benefit ➡️ 😬Kubernetes — Scenario-Based Questions - Your Pod is restarting frequently. How do you identify the root cause? - A Deployment is stuck in "progressing" state — how do you troubleshoot? - How do you debug a CrashLoopBackOff issue? - How do you check which Pods are consuming high memory or CPU? - Node is in NotReady state — steps to investigate? - Your application is not accessible through service — what will you check? - How do you handle failed daemonset pods? - Persistent Volume not attaching — what’s your troubleshooting approach? - How do you perform rolling updates and rollbacks safely? - How do you perform health checks for Pods and Nodes in live environments? 😬Helm — Practical Questions - What are values.yaml and how do you override them? - How do you manage multiple environment deployments using Helm? - How do you debug a failed Helm release? - What is the difference between Helm Chart, Release, and Repository? 😬Jenkins — CI/CD Questions - Why choose Declarative Pipeline over Scripted Pipeline? - How do you integrate SonarQube into a Jenkins pipeline? - How do you build → containerize → push → deploy using Jenkins? 😬AWS — Scenario Questions - Your EC2 instance is unreachable — how do you diagnose? - How do you implement Auto Scaling with proper health checks? - Difference between ALB and NLB and when to use which? - S3 cross-region replication setup steps? - How to troubleshoot high latency in API Gateway? - How do you reduce RDS cost without downtime? - What happens if Terraform state is deleted in S3? - How do you secure your VPC workloads at scale? 😬Terraform — Infra as Code Questions - How do you recover from a deleted Terraform state file? - How do you create 50 EC2 instances with different configurations (dynamic blocks)? - Share your screen and write a terraform code to create a VPC with all there components and create a RDS database into VPC. 😬Prometheus & Grafana — Monitoring Questions - How do you set up custom metrics for Kubernetes pods? - How do you troubleshoot missing data points in Grafana dashboards? - How do you create alerts for high CPU or memory usage? 😬Reflection: This interview round was entirely hands-on, scenario-focused, and tested how well you handle production-grade issues, automation thinking, and troubleshooting skills. If you're preparing for DevOps/SRE roles — start practicing real scenarios, not definitions. 📱 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

👋 You said you know Kubernetes? Cool. Let’s find out. Because the moment you drop “Kubernetes” in a DevOps interview… You’ve just invited a deep dive from hell. Not “what’s a Pod?” Not “what’s the difference between a ReplicaSet and a Deployment?” I’m talking about the kind of questions I ask as a Principal DevOps Engineer - to see if you’ve actually run clusters in production, not just deployed NGINX on kind once. Here are 15 real-world Kubernetes questions that separate K8s admins/operators from K8s experts wannabes. 👇 ⚔️ 𝗗𝗲𝗲𝗽 𝗗𝗶𝘃𝗲 𝗗𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴 1 - Pod stuck in CrashLoopBackOff, no logs, no errors. → How do you debug beyond kubectl logs and describe? 2 - A StatefulSet pod won’t reattach its PVC after a node crash. → How do you recover without recreating storage? 3 - Pods are Pending, Cluster Autoscaler won’t scale up. → Walk me through your top 3 debugging steps. 4 - NetworkPolicy blocks cross-namespace traffic. → How do you design least-privilege rules and test them safely? 5 - Service must connect to an external DB via VPN inside the cluster. → How do you architect it for HA + security? 🧱 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 + 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 6 - Running a multi-tenant EKS cluster. → How do you isolate workloads with RBAC, quotas, and network segmentation? 7 - Kubelet keeps restarting on one node. → Where do you look first – systemd, container runtime, or cgroups? 8 - Critical pod got evicted due to node pressure. → Explain QoS classes and eviction policies. 9 - A rolling update caused downtime. → What went wrong in your readiness/startup probe or deployment config? 10 - Ingress Controller fails under load. → How do you debug and scale routing efficiently? ⚙️ 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 + 𝗥𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆 11 - Istio sidecar consumes more CPU than your app. → How do you profile and optimise mesh performance? 12 - etcd is slowing down control plane ops. → Root causes + how do you tune it safely? 13 - You must enforce images from a trusted internal registry only. → Gatekeeper, Kyverno, or custom Admission Webhook – what’s your move? 14 - Pods stuck in ContainerCreating forever. → CNI attach delay? OverlayFS corruption? Walk me through your root-cause process. 15 - Random DNS failures in Pods. → How do you debug CoreDNS, kube-proxy, and conntrack interactions? If you can answer these confidently… You don’t just use Kubernetes - you operate, secure, and scale it. Let’s raise the bar for DevOps engineers. 📱 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

🚨 DevOps/Cloud Advanced Production Issues 🚨 ➡️ Why is CPU or memory usage suddenly high on pods or EC2 instances? Reason: Memory leaks, unoptimized code, or infinite loops. ➡️ Why is disk usage reaching 100% suddenly? Reason: Old logs, temp data, or backups filling /var/log. ➡️ Why are Kubernetes pods in CrashLoopBackOff state? Reason: Failed readiness/liveness probes or bad configuration. ➡️ Why is my pod getting OOMKilled repeatedly? Reason: Container exceeds memory limit. ➡️ Why is my Jenkins pipeline failing at random stages? Reason: Environment inconsistency or missing dependencies. ➡️ Why is Terraform showing state lock or drift detected? Reason: Multiple users modifying infra or manual AWS console changes. ➡️ Why did my EC2 instance crash during traffic spike? Reason: No autoscaling or CPU credit exhaustion. ➡️ Why is the application not connecting to the database? Reason: Wrong credentials, security group, or parameter group issues. ➡️ Why is API latency increasing after each deployment? Reason: Unoptimized queries or cold starts (Lambda). ➡️ Why is the Docker image size too large? Reason: Unnecessary layers or base image bloat. ➡️ Why is CloudWatch not showing logs from ECS tasks? Reason: Wrong IAM role or log driver misconfiguration. ➡️ Why are Lambda functions timing out randomly? Reason: Cold starts or external service latency. ➡️ Why is the S3 bucket filling too fast? Reason: No lifecycle policy or backup scripts flooding data. ➡️ Why is Route 53 not routing traffic properly? Reason: TTL propagation or wrong health check configuration. ➡️ Why is Jenkins build taking too long to complete? Reason: Inefficient builds, large dependencies, or lack of caching. ➡️ Why did my Kubernetes node go into NotReady state? Reason: Network issue, kubelet crash, or resource exhaustion. ➡️ Why is EKS failing to pull Docker images? Reason: Wrong ECR permissions or missing imagePullSecrets. ➡️ Why are CloudFormation stacks stuck in UPDATE_ROLLBACK_FAILED? Reason: Resource dependencies or failed deletes. ➡️ Why is the load balancer showing unhealthy targets? Reason: Wrong health check path or app not responding on target port. ➡️ Why is my container restarting frequently? Reason: App crash or resource limits exceeded. ➡️ Why are Prometheus alerts firing repeatedly? Reason: Incorrect threshold or noisy rules. ➡️ Why is the CI/CD pipeline not deploying to production automatically? Reason: Approval gates or permission issues. ➡️ Why is SSL/TLS certificate expired or invalid? Reason: Missed renewal automation. ➡️ Why are CloudWatch alarms not triggering even when metrics exceed threshold? Reason: Wrong metric namespace or missing data points. ➡️ Why is my infrastructure cost increasing unexpectedly? Reason: Idle EC2/RDS, orphaned EBS, or unused load balancers. 📱 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

➡️ New DevOps Project Release! ⬅️ 🚀 DevOps Project-38: End-to-End Deployment of a FullStack Blogging Application with AWS EKS, Terraform, Jenkins, SonarQube, Nexus, Trivy & Prometheus/Grafana 🌐 We built and deployed a production-ready Full-stack Blogging Application powered by Spring Boot and fully automated with modern DevOps tools. 🌐✨ 🔹 Key Features ✅ Create, Edit & Delete Blog Posts ✅ RESTful API with Spring Boot (Java) ✅ Static Code Analysis with SonarQube ✅ Security & Vulnerability Scanning via Trivy ✅ Automated CI/CD Pipeline with Jenkins ✅ Secure Artifact Management using Nexus ✅ Deployed on AWS EKS with Kubernetes ✅ Containerized using Docker ✅ Monitoring with Prometheus & Grafana ✅ Email Notifications on Deployment 📩 💡 End-to-end setup: Terraform + Jenkins + Kubernetes + AWS This project demonstrates how to combine automation, security, and scalability into a seamless DevOps pipeline. ⚡️ A great reference for anyone exploring Cloud-Native DevOps & Spring Boot Apps! 📱 GitHub: https://github.com/NotHarshhaa/DevOps-Projects/tree/master/DevOps-Project-38 ➗ View on Web: https://projects.prodevopsguytech.com/blog/DevOps-Project-38 Check it out & give it a ⭐️ if it helps you! #DevOps #AWS #EKS #Kubernetes #CICD #FullStack #CloudNative #Jenkins #Terraform #Docker 📱 𝐅𝐨𝐥𝐥𝐨𝐰 @prodevopsguy 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐬𝐮𝐜𝐡 𝐜𝐨𝐧𝐭𝐞𝐧𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬!!! // 𝐉𝐨𝐢𝐧 𝐟𝐨𝐫 𝐃𝐞𝐯𝐎𝐩𝐬 𝐃𝐎𝐂𝐬: @devopsdocs

🚀 𝐌𝐚𝐬𝐭𝐞𝐫 𝐓𝐞𝐫𝐫𝐚𝐟𝐨𝐫𝐦 𝐢𝐧 𝟏𝟒 𝐃𝐚𝐲𝐬! 🚀 Are you looking to get hands-on with Terraform and Infrastructure as Code (IaC)? We created a 14-day learning plan covering everything from the basics to advanced concepts. Each day, we shared a deep dive into a new Terraform topic, packed with practical examples, best practices, and troubleshooting tips. Now, We compiling all 14 articles into one place to help you on your Terraform journey! 🖥 𝐑𝐞𝐚𝐝 𝐁𝐞𝐥𝐨𝐰 𝐀𝐫𝐭𝐢𝐜𝐥𝐞𝐬:(in order) 1. Introduction to Terraform - https://lnkd.in/guZkiFBP 2. Basics of Terraform - https://lnkd.in/gppbq8ed 3. Variables and Outputs - https://lnkd.in/gJXb2u3D 4. Terraform State Management - https://lnkd.in/gDepmUdD 5. Terraform Module - https://lnkd.in/gSZMZ-7F 6. Provisioners and Meta-Arguments - https://lnkd.in/g5zFxTb3 7. Mini Project - https://lnkd.in/gtET_p5v 8. Terraform Cloud and Workspaces - https://lnkd.in/gdBdB_vP 9. Terraform with CI/CD - https://lnkd.in/giZgf8QF 10. Handling Secrets and Security in Terraform - https://lnkd.in/gywgK-h3 11. Debugging and Troubleshooting Terraform - https://lnkd.in/gWX-3QTw 12. Terraform Best Practices - https://lnkd.in/g7iDVnfP 13. Terraform With Kubernetes - https://lnkd.in/gEziumJK 14. Terraform Enterprise, Sentinel, Custom Providers - https://lnkd.in/g_FNYS9c 🔖 𝐒𝐚𝐯𝐞 & 𝐒𝐡𝐚𝐫𝐞 this post if you're learning Terraform! 📱 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

📣 15 𝑴𝒖𝒔𝒕-𝑯𝒂𝒗𝒆 𝑶𝒑𝒆𝒏 𝑺𝒐𝒖𝒓𝒄𝒆 𝑻𝒐𝒐𝒍𝒔 𝒕𝒐 𝑺𝒆𝒄𝒖𝒓𝒆 𝒀𝒐𝒖𝒓 𝑲𝒖𝒃𝒆𝒓𝒏𝒆𝒕𝒆𝒔 𝑪𝒍𝒖𝒔𝒕𝒆𝒓𝒔 💎⚙️🔒 From code to runtime, securing every layer of your container stack is crucial! If you're serious about Kubernetes security, these 15 open-source tools will help you shift left, enforce policies, reduce attack surface, and monitor runtime in cloudnative ecosystem 🔒 ⬇️ Here's your go-to toolbox: 🖥 Trivy – All-in-one vulnerability & IaC misconfiguration scanner. 🔗 https://lnkd.in/gZM9HtwR 🖥 Kyverno – K8s-native policy engine to validate/mutate resources via CRDs. 🔗 https://lnkd.in/gCE3Jwx2 🖥 Kubescape – Full-stack K8s posture & compliance scanner (CIS, NSA, etc). 🔗 https://lnkd.in/g3q4HMTm 🖥 kube-hunter – Actively hunts for security issues in your cluster. 🔗 https://lnkd.in/gRZNeMT7 🖥 Falco – Detects abnormal behavior in containers & K8s at runtime. 🔗 https://lnkd.in/gEYi5SX2 🖥 kube-bench – Checks cluster compliance with CIS K8s benchmarks. 🔗 https://lnkd.in/ev8zXhmg 🖥 Open Policy Agent (OPA) – Flexible, unified policy engine with Rego. 🔗 https://lnkd.in/g4mDGaKJ 🖥 Gatekeeper – Admission controller that enforces OPA policies in K8s. 🔗 https://lnkd.in/gxXG_URC 🖥 DockerSlim – Minifies container images without breaking functionality. 🔗 https://lnkd.in/gEhxHZYd 🖥 Terrascan – Scans IaC for security flaws (Terraform, Helm, etc). 🔗 https://lnkd.in/gxmzE-nm 🖥 kubeaudit – Audits Kubernetes clusters against common security controls. 🔗 https://lnkd.in/ezijRDqG 🖥 kubeclarity – Software composition analysis for containers & images. 🔗 https://lnkd.in/gHb5RXXU 🖥 krakend-waf – Lightweight API gateway + Web Application Firewall for services. 🔗 https://lnkd.in/gBG7_mTu 🖥 sigstore/cosign – Sign & verify container images to secure your software supply chain. 🔗 https://lnkd.in/gvzmb5fH 🖥 Chainguard/reencrypt – Secures your container registries by re-signing images. 🔗 https://lnkd.in/ghhrGVfu 📱 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

🚨 Kubernetes Troubleshooting Cheatsheet 🛠 1⃣) Confirm cluster and namespace ⚫️ Check current context: kubectl config current-context ⚫️ List contexts: kubectl config get-contexts ⚫️ Switch context: kubectl config use-context <name> ⚫️ List namespaces or pods in a namespace: kubectl get ns and kubectl get pods -n <namespace> 2⃣) Get the big picture: nodes, pods and events 🔴 Nodes: kubectl get nodes 🔴 All pods: kubectl get pods -A 🔴 All deployments: kubectl get deployments -A 🔴 Recent events: kubectl get events --sort-by=.metadata.creationTimestamp -A 3⃣) Inspect the failing pod 🟣 Describe the pod: kubectl describe pod <pod> -n <ns> 🟣 View logs: kubectl logs <pod> -n <ns> 🟣 Logs for a specific container: kubectl logs <pod> -c <container> -n <ns> 🟣 Open a shell inside the pod: kubectl exec -it <pod> -n <ns> -- /bin/sh 4⃣) Check probes and health 🟢 See readiness and liveness probe info in kubectl describe output 🟢 Test the probe endpoint from inside the pod: 🟢 kubectl exec -it <pod> -n <ns> -- curl -sv localhost:<port>/health 🟢 If probes fail, consider adjusting timeouts or probe settings 5⃣) Rollouts, history and recovery 🟠 Check rollout status: kubectl rollout status deployment/<name> -n <ns> 🟠 View rollout history: kubectl rollout history deployment/<name> -n <ns> 🟠 Rollback if needed: kubectl rollout undo deployment/<name> -n <ns> 6⃣) Networking and services 🟤 List services: kubectl get svc -n <ns> 🟤 Check endpoints: kubectl get endpoints -n <ns> 🟤 DNS test from a pod: kubectl exec -it <pod> -n <ns> -- nslookup <service> 🟤 Quick local test with port-forward: kubectl port-forward svc/<svc> 8080:80 -n <ns> 7⃣) Storage: PVC and PV checks 🟡 List PVCs: kubectl get pvc -n <ns> 🟡 Describe a PVC: kubectl describe pvc <pvc> -n <ns> 🟡 Look for mount errors in the pod describe output 8⃣) Resources, logs and quick fixes 🔵 Resource usage: kubectl top nodes and kubectl top pods -n <ns> 🔵 Tail logs across pods with tools like stern or kubetail 🔵 Restart deployment: kubectl rollout restart deployment/<name> -n <ns> 🔵 Recreate a pod safely: kubectl delete pod <pod> -n <ns> (controller will recreate it) 📱 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

📱 How Kubernetes Works: End-to-End Explained Simply 1. Cluster Setup You begin by setting up a Kubernetes cluster, which includes a control plane and one or more worker nodes. 2. Define Your Application You describe your application using YAML configuration files—these define resources like Deployments, Services, ConfigMaps, etc. 3. Apply Configuration You apply the YAML files using kubectl apply -f <file>. This sends your request to the API Server, which is the central management component of the cluster. 4. API Server Processing Kubernetes processes the request and decides: Whether to create a new resource (e.g., Pod, Deployment) Update or delete an existing resource Or trigger a controller to take action 5. Store in etcd The API Server stores the resource’s specification in etcd, the cluster’s key-value store and source of truth. 6. Controller Detects Change A relevant controller (e.g., ReplicaSet Controller) detects the new spec and responds accordingly. 7. Resource Creation The controller initiates resource creation, instructing the scheduler to deploy Pods. 8. Scheduling The scheduler assigns Pods to appropriate nodes based on current resource availability and scheduling policies. 9. Kubelet Interaction Once assigned, the Kubelet on the target node receives the Pod specification and requests the container runtime to start the container. 10. Container Deployment The container runtime pulls the required image, creates the container, and runs it inside the Pod. 11. Network Assignment The CNI plugin (Container Network Interface) assigns a network identity to the Pod. It gets an IP address and joins the cluster network. 12. Service Routing with kube-proxy kube-proxy sets up the routing rules to allow Services to forward traffic to the appropriate and healthy Pods. 📱 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

🟢 DevOps in 2025: Winning Skills and Real Trends Two years ago, DevOps was a high-demand field. In 2025, it’s the backbone of every digital transformation—supercharged by cloud, automation, and now, AI. Here's what caught my attention 👇 📈 DevOps market is projected to expand from $13.2 billion in 2024 to an impressive $81.1 billion by 2028 📈 From specialized approach to mainstream strategy: Its adoption soared from 33% of companies in 2017 to an estimated 80% in 2024. Let me break down what's really happening out there and how you can ride this wave—whether you're just starting or gunning for that architect role. 📊 𝗪𝗵𝗶𝗰𝗵 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗔𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗗𝗼𝗺𝗶𝗻𝗮𝘁𝗲 𝗝𝗼𝗯 𝗣𝗼𝘀𝘁𝗶𝗻𝗴𝘀? Based on aggregated data from 2024-2025 DevOps job postings, here’s the tech that consistently tops job requirements: 1 - Terraform 88% (+9%) 2 - Python 80% (+8%) 3 - Kubernetes 76% (+6%) 4 - AWS 72% (–3%) 5 - Jenkins 74% (+6%) 6 - Docker 68% (+3%) 7 - Azure 60% (+6%) 8 - Git/GitHub 60% (+2%) .... 19 - Golang 18% (+13%) The pattern is clear: Infrastructure as Code is king, container orchestration is everywhere, and you better know your way around multiple clouds. Golang is the surprise breakout. 🌐 𝗪𝗵𝘆 𝗘𝘃𝗲𝗿𝘆𝗼𝗻𝗲'𝘀 𝗛𝘂𝗻𝘁𝗶𝗻𝗴 𝗳𝗼𝗿 𝗗𝗲𝘃𝗢𝗽𝘀 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘀 ➡️ Cloud-native expertise is “non-negotiable”: 83% of organizations now use multi-cloud approaches. If you can juggle AWS, Azure, AND Kubernetes? You're golden. ➡️ Architects and senior engineers who bridge DevOps, cloud, and AI lead the next evolution. These are the people building scalable, secure, AI-ready infrastructure—roles that are multiplying fast. ➡️ Platform engineering is having a moment: Everyone wants internal platforms that make their developers' lives easier. 🤖 𝗔𝗜 𝗜𝘀𝗻'𝘁 𝗞𝗶𝗹𝗹𝗶𝗻𝗴 𝗗𝗲𝘃𝗢𝗽𝘀 (𝗜𝘁'𝘀 𝗠𝗮𝗸𝗶𝗻𝗴 𝗜𝘁 𝗕𝗲𝘁𝘁𝗲𝗿) ✅ AI/ML is making DevOps smarter—think smart incident response, predictive analytics, and self-healing infrastructure that fixes itself. ⚙️ But success still comes down to knowing your foundations: DevOps, cloud architecture, and scripting. 🚦 𝗖𝗮𝗿𝗲𝗲𝗿 𝗔𝗱𝘃𝗶𝗰𝗲: 𝗖𝗵𝗼𝗼𝘀𝗲 𝗕𝗿𝗲𝗮𝗱𝘁𝗵, 𝗧𝗵𝗲𝗻 𝗚𝗼 𝗗𝗲𝗲𝗽 - Get dangerous with 2 automation tools (Terraform + K8s is the combo right now) - Go deep with AWS or Azure, but stay curious about the others - Python is your Swiss Army knife—learn it, love it - Don't sleep on AI tools, but master your CI/CD and container game first 📱 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

📱 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

➡️ 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

❗️ 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

ℹ️ PWC Interview experience for DevOps Engineer role ✅ Round 1: Screening Round (30 minutes) - Walk me through your current project architecture and your role in it. - Which DevOps tools have you worked with in the last 2 years? - What AWS services have you used in production? - How do you expose a Kubernetes application to external traffic? - What is the purpose of a NAT Gateway? - How do you check running processes in Linux? - What command would you use to find files larger than 100MB? - What is the difference between Deployment and StatefulSet in Kubernetes? - What is a ConfigMap, and how is it different from a Secret? - How do you check network connectivity between two servers? - Describe your experience with CI/CD pipelines. ✅ Round 2: Technical Round (60 minutes) - You have an application in Account A that needs to access an S3 bucket in Account B. How would you configure this? - Write a Dockerfile for a Node.js application with multi-stage builds. - How do you handle Terraform state file corruption? - Your EC2 instance in a private subnet needs to download packages without NAT Gateway. What alternatives exist? - How do you debug a container that has exited? - You need to import an existing AWS VPC into Terraform. What are the steps? - How would you implement blue-green deployment in Kubernetes? - How do you manage secrets in Terraform without hardcoding them? - What's the difference between COPY and ADD commands in Dockerfile? - How would you implement cross-account resource provisioning using Terraform? - How would you handle secrets in a Docker container for a PHP application connecting to MySQL? - An S3 bucket was created via Terraform, but someone manually added a policy. How do you handle this drift? - How do you implement network policies to restrict pod-to-pod communication in Kubernetes? - Write a Python script to backup all files older than 30 days from a directory. - Your company's cloud costs are increasing rapidly. - How would you approach cost optimization without impacting performance? - How would you set up geolocation-based routing using AWS services? - A critical production Kubernetes cluster is experiencing multiple issues. Pods are stuck in ImagePullBackOff, some pods are being evicted, and users are reporting 503 errors from the application. What troubleshooting process will you follow, and how can to avoid this in the future? ✅ Round 3: Behavioral Round - How do you handle a situation where you're asked to work on a technology you have no experience with? - Describe a time when you had to work with tight deadlines and limited resources. - Tell me about a mistake you made in production and how you handled it. - Describe the most challenging technical problem you've solved in your career. - How would you convince stakeholders to adopt a new technology or process? - Tell me about a time when you had to learn a new tool quickly to solve a business problem. ↗️ Follow @DevOpsClassroom for more DevOps Journey and Learn step by step, share with your friends and people for helping out together.

➗ 10 FREE DevOps labs that helped to stop feeling stuck — and start feeling unstoppable ⬇️ 1️⃣. KodeKloud Engineer Platform Simulate real-world tasks. Get “promoted” from SysAdmin → DevOps Engineer → Architect! ⏩ https://lnkd.in/g3G_vMNU 2️⃣. DevOps Labs Collection Hands-on labs across CI/CD, monitoring, automation — no credit card needed. ⏩ https://lnkd.in/g8HVvigm 3️⃣. Kubernetes Lab Deploy clusters, manage apps, master YAML. ⏩ https://lnkd.in/guWWzCeh 4️⃣. Docker Lab Pull, build, and run real containers. ⏩ https://lnkd.in/gFyeEnrT 5️⃣. Git Lab Master Git flows, branching, merges — fluency guaranteed. ⏩ https://lnkd.in/grP6dYfa 6️⃣. Terraform Lab Write Infrastructure as Code. Deploy AWS resources without fear. ⏩ https://lnkd.in/gmhTZPdR 7️⃣. Linux Lab Learn Linux basics — 90% of DevOps work happens here. ⏩ https://lnkd.in/g92cPyYE 8️⃣. Ansible Lab Automate server setups like a pro. ⏩ https://lnkd.in/gVGdesdB 9️⃣. Jenkins Lab Build real CI/CD pipelines with hands-on Jenkins experience. ⏩ https://lnkd.in/gPdeqhYZ 1️⃣0️⃣. Python Lab Practice automation scripts and cloud operations. ⏩ https://lnkd.in/g-gM9QmM 📱 Join the channel now and start your DevOps journey with confidence: 📎 t.me/DevOpsClassroom

🖥 5 DevOps projects that will help you land your first job (Build a complete DevOps Portfolio) 🔜 Project 1: Deploy an app to AWS EKS with ingress controller in three tier vpc and expose the app via application load balancer. 📎 https://lnkd.in/di5W52iD 🔜 Project 2: Full end-to-end CI/CD pipeline. Containerize and deploy the app to k8s using Helm charts and ArgoCD 📎 https://lnkd.in/dRqXFs2a 🔜 Project 3: Complete Gitlab CI/CD pipeline. Build, test, scan and deploy a board game 📎 https://lnkd.in/dHZprJC4 🔜 Project 4: End-to-End Terraform project creating VPC, route tables, RDS, State Management etc. 📎 https://lnkd.in/dhpNEE63 🔜 Project 5: End-to-end monitoring an app using Prometheus and Grafana. 📎 https://lnkd.in/d9tfAW3c These projects will demonstrate your DevOps expertise in the interviews, and land your first job. 📱 Join the channel now and start your DevOps journey with confidence: 📎 t.me/DevOpsClassroom

⚡ 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

⚡️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

🚀 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