How do you implement container orchestration with Docker Swarm vs Kubernetes?

Container orchestration comparison: Docker Swarm: 1) Native Docker solution, simpler setup, 2) Built-in service discovery and load balancing, 3) Declarative service model, 4) Rolling updates and rollbacks, 5) Secrets and config management, 6) Example: docker swarm init, docker service create --replicas 3 myapp. Kubernetes: 1) More complex but feature-rich, 2) Pods, Services, Deployments, ConfigMaps, 3) Horizontal Pod Autoscaler, 4) Advanced networking with CNI, 5) Helm for package management, 6) Example: kubectl create deployment myapp --image=myapp --replicas=3. When to choose: Docker Swarm for simpler deployments, existing Docker expertise, smaller teams. Kubernetes for complex applications, advanced features, large scale, multi-cloud deployments. Migration path: Start with Swarm, migrate to Kubernetes as complexity grows.