Modern Cloud Deployment Strategies

Choosing the right deployment strategy is crucial for maintaining high availability and reducing risk. Let’s explore common approaches and their use cases.

Blue-Green Deployment

# kubernetes-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp-blue
spec:
  replicas: 3
  selector:
    matchLabels:
      app: myapp
      version: blue

Canary Releases

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/canary: "true"
    nginx.ingress.kubernetes.io/canary-weight: "20"

Rolling Updates

Benefits:

1. No downtime
2. Gradual rollout
3. Automatic rollback
4. Resource efficient

Feature Flags

if (featureFlags.isEnabled('new-ui')) {
  return <NewComponent />;
} else {
  return <LegacyComponent />;
}

Choose your deployment strategy based on:

• Application architecture
• Business requirements
• Risk tolerance
• Team expertise