Migrate from Docker Compose to Kubernetes
Graduate from Docker Compose to Kubernetes for auto-scaling, rolling deployments, self-healing, and production-grade container orchestration.
Migration: Docker Compose to Kubernetes
From Docker Compose to Kubernetes
Why Migrate
- Auto-Scaling: Kubernetes scales pods up and down based on CPU, memory, or custom metrics. Docker Compose requires manual scaling with no built-in autoscaler.
- Self-Healing: Kubernetes automatically restarts failed containers, reschedules pods on healthy nodes, and performs readiness checks — eliminating manual intervention.
- Rolling Deployments: Kubernetes performs zero-downtime rolling updates with health checks, automatic rollback on failure, and canary deployment strategies.
Migration Roadmap
- Docker Compose Analysis (1–2 weeks): Analyze docker-compose.yml services, volumes, networks, and environment variables. Design Kubernetes manifests and Helm charts.
- Service architecture mapping
- Kubernetes resource design
- Helm chart structure
- Persistent volume plan
- Kubernetes Manifest Creation (2–4 weeks): Convert Docker Compose services to Kubernetes Deployments, Services, ConfigMaps, Secrets, and Ingress resources. Implement health checks.
- Kubernetes manifests or Helm charts
- Ingress and TLS configuration
- Health check and readiness probes
- Horizontal Pod Autoscaler rules
- Cluster Deployment & Validation (1–3 weeks): Deploy to a managed Kubernetes cluster (EKS, GKE, or AKS), run load testing, validate auto-scaling, and execute production cutover.
- Production cluster deployment
- Load test results
- Monitoring and alerting setup
- Runbook documentation
Risks & Mitigation
- Kubernetes complexity overwhelms the team: We use managed Kubernetes (EKS, GKE, AKS) to eliminate cluster management, and Helm charts with clear documentation to simplify day-2 operations.
- Persistent storage migration from Docker volumes: We map Docker volumes to Kubernetes PersistentVolumeClaims with appropriate StorageClasses, and migrate data during a maintenance window with integrity validation.
Estimated Scope
Hours: 100–200 | Cost: $200–$400 | Timeline: 4–9 weeks
Frequently Asked Questions
- Do we need Kubernetes or is Docker Compose enough?
- If you need auto-scaling, zero-downtime deployments, self-healing, or multi-node deployment, Kubernetes is the right choice. For single-server dev/staging, Compose may suffice.
- Which managed Kubernetes service should we use?
- We recommend based on your cloud provider: EKS for AWS, GKE for Google Cloud, AKS for Azure. GKE offers the smoothest experience; EKS has the largest ecosystem.
- How do you handle secrets in Kubernetes?
- We use Kubernetes Secrets with encryption at rest, External Secrets Operator for syncing from AWS Secrets Manager or Vault, and SOPS for Git-stored encrypted secrets.