Decision guide
Docker Compose vs Kubernetes
Where should you run your containers: Compose on a server, Docker Swarm, or Kubernetes?
Side by side
| Criterion | Docker Compose on one host | Docker Swarm | Self-managed Kubernetes | Managed Kubernetes (EKS, GKE, AKS) |
|---|---|---|---|---|
| Learning curve | Low | Low-medium | High | Medium-high |
| High availability | Single host (restart only) | Across nodes | Across nodes and zones | Across zones, managed control plane |
| Zero-downtime deploys | Needs a proxy and manual steps | Rolling updates | Rolling updates, probes, PDBs | Rolling updates, probes, PDBs |
| Autoscaling | No | Manual replicas | HPA, cluster autoscaling (you set up) | HPA plus managed node autoscaling |
| Ecosystem | Docker tooling | Small | Huge | Huge plus cloud integrations |
| Operational load | Low (one VM) | Low-medium | High | Medium (upgrades still yours) |
When to choose each
Docker Compose on one host
One VM runs the stack with docker compose up -d, restart policies and a reverse proxy.
Choose when
- A few services and one team
- Early products, internal tools, staging environments
- No platform team
Avoid when
- High availability across machines
- Many teams deploying independently
Docker Swarm
Docker's built-in orchestrator: Compose-like stack files across several nodes.
Choose when
- You need a few nodes and want to stay close to Compose
- Small clusters with simple needs
Avoid when
- You need the Kubernetes ecosystem (operators, GitOps tooling, managed services)
Self-managed Kubernetes
Kubernetes you install and operate yourself (kubeadm, k3s, RKE2) on VMs or bare metal.
Choose when
- On-premises or edge requirements
- A platform team with Kubernetes experience
Avoid when
- Small teams: upgrades, etcd, networking and security are real work
Managed Kubernetes (EKS, GKE, AKS)
The cloud provider runs the control plane; you run workloads (and often nodes).
Choose when
- Many services and teams
- Autoscaling, rolling deploys, multi-zone availability
- You want the Kubernetes ecosystem
Avoid when
- A handful of services where a PaaS or Compose would do
Verdict
Start with Compose on one VM for small products and internal tools; it's simple and honest about its limits. Move to managed Kubernetes when you need multi-node availability, autoscaling, many services or many teams; run Kubernetes yourself only with a platform team or on-prem requirements. Swarm works for small multi-node needs but has a much smaller ecosystem. Often a container PaaS is the better step up from Compose than Kubernetes (see the next guide).
Learn more
- Docker from Basics to Production
- Kubernetes in Production
- CI/CD & Deployment
- Run PostgreSQL in Compose with a healthcheck and persistent data (Docker)
- Write a production-ready Deployment (Kubernetes)