Kubernetes for Beginners: Deploy Your First App in 15 Minutes

Kubernetes (K8s) orchestrates containers at scale. It sounds intimidating, but deploying your first app is surprisingly straightforward. Core Concepts in 60 Seconds Pod: Smallest unit — one or more containers running together Deployment: Manages pods — handles scaling, updates, rollbacks Service: Stable network endpoint for accessing pods Namespace: Virtual cluster for organizing resources Setup: Local K8s with minikube # Install minikube curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 sudo install minikube-linux-amd64 /usr/local/bin/minikube # Start cluster minikube start # Verify kubectl get nodes Deploy Your First App Step 1: Create a Deployment # deployment.yaml apiVersion : apps/v1 kind : Deployment metadata : name : myapp labels : app : myapp spec : replicas : 3 selector : matchLabels : app : myapp template : metadata : labels : app : myapp spec : containers : - name : myapp image : myuser/myapp:v1 ports : - containerPort : 8000 resources : r