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Quick Start

Quick Start

Learn core Kubernetes concepts and orchestration patterns. This Quick Start teaches essential Kubernetes skills.

🎯 What You’ll Learn

By the end of this tutorial, you’ll understand:

  • Pods, Deployments, and Services
  • ConfigMaps and Secrets
  • Persistent Volumes
  • Scaling and updates

📋 Prerequisites

📦 Pods and Deployments

Create deployment.yaml:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp
spec:
  replicas: 3
  selector:
    matchLabels:
      app: myapp
  template:
    metadata:
      labels:
        app: myapp
    spec:
      containers:
        - name: myapp
          image: nginx:latest
          ports:
            - containerPort: 80

Apply:

kubectl apply -f deployment.yaml
kubectl get pods
kubectl get deployments

🌐 Services

Create service.yaml:

apiVersion: v1
kind: Service
metadata:
  name: myapp-service
spec:
  selector:
    app: myapp
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: LoadBalancer

Apply:

kubectl apply -f service.yaml
kubectl get services

🔐 ConfigMaps and Secrets 

apiVersion: v1
kind: ConfigMap
metadata:
  name: app-config
data:
  DATABASE_URL: "postgres://db:5432/myapp"
  LOG_LEVEL: "info"
---
apiVersion: v1
kind: Secret
metadata:
  name: app-secret
type: Opaque
stringData:
  password: "secret123"

📈 Scaling 

kubectl scale deployment myapp --replicas=5
kubectl get pods

✅ Next Steps

You now understand Kubernetes essentials!

  1. Try the examples: Create and manage resources
  2. Explore By Example: Kubernetes By Example

🎯 Self-Assessment

After completing this Quick Start, you should be able to:

  • Create Deployments and Pods
  • Expose applications with Services
  • Use ConfigMaps and Secrets
  • Scale applications
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Initial Setup