Kubernetes Orchestration

Best practices for Kubernetes deployments and operations.

When to Use

• Deploying applications to Kubernetes

• Writing or reviewing K8s manifests

• Setting up clusters and workloads

Core Concepts

Deployment

apiVersion: apps/v1 kind: Deployment metadata: name: app spec: replicas: 3 selector: matchLabels: app: myapp template: metadata: labels: app: myapp spec: containers: - name: app image: myapp:1.0.0 ports: - containerPort: 8080 resources: requests: memory: "128Mi" cpu: "100m" limits: memory: "256Mi" cpu: "200m" livenessProbe: httpGet: path: /health port: 8080 initialDelaySeconds: 30 periodSeconds: 10

Service

apiVersion: v1 kind: Service metadata: name: app-service spec: selector: app: myapp ports:

• port: 80 targetPort: 8080 type: ClusterIP

ConfigMap & Secrets

apiVersion: v1 kind: ConfigMap metadata: name: app-config data: LOG_LEVEL: "info" MAX_CONNECTIONS: "100"

apiVersion: v1 kind: Secret metadata: name: app-secret type: Opaque stringData: DATABASE_URL: "postgresql://user:pass@db:5432/app"

Best Practices

• Use labels consistently

• Set resource requests and limits

• Implement health checks (liveness, readiness, startup probes)

• Use ConfigMaps and Secrets for configuration

• Implement horizontal pod autoscaling (HPA)

• Use namespaces for environment separation

Resources

• Kubernetes Docs

• Kubernetes Best Practices