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Kubernetes vs Docker: Do You Really Need K8s for Self-Hosting?

Kubernetes is everywhere, but is it overkill for self-hosting? Spoiler: almost always yes. Here's when Docker alone is the right choice.

kubernetesdockerinfrastructure

The Kubernetes Hype


Kubernetes (K8s) is the container orchestration platform. It manages containers across clusters of machines, handles scaling, networking, and deployment. Every tech conference talks about it. Every job listing requires it.


But do you actually need it?


What Kubernetes Does


  • Runs containers across multiple servers
  • Auto-scales based on load
  • Self-heals crashed containers
  • Manages networking between services
  • Handles rolling deployments
  • Provides service discovery

    • What Docker (Alone) Does


  • Runs containers on a single server
  • Restarts crashed containers
  • Manages networking between containers
  • Handles deployments via image updates
  • Provides DNS-based service discovery

    • The Honest Comparison


    Complexity

  • Docker: Learn 10 commands, one config file format
  • Kubernetes: Learn 50+ resource types, YAML manifests, helm charts, networking models, RBAC, persistent volumes, operators...

    • Resource Overhead

  • Docker: ~100 MB RAM for the daemon
  • Kubernetes: 2-4 GB RAM just for the control plane (etcd, API server, scheduler, etc.)

    • Operational Burden

  • Docker: docker compose up -d
  • Kubernetes: kubectl, helm, ArgoCD, cert-manager, ingress controllers, monitoring stack...

    • When You Actually Need Kubernetes

  • 100+ containers across 10+ servers
  • Auto-scaling for traffic spikes (Black Friday, viral content)
  • Multi-region deployments
  • Large engineering team with dedicated platform engineers

    • When Docker Is Enough

  • 1-50 containers on 1-3 servers
  • Predictable traffic
  • Small team
  • Self-hosted applications for a business or personal use

    • The Self-Hosting Sweet Spot


    For self-hosting, Docker (or Podman) on a single server handles 99% of use cases. A server with 4 cores and 8 GB RAM can comfortably run 20-30 applications. That's Docker Compose territory, not Kubernetes territory.


    Kubernetes is for companies running thousands of containers across dozens of servers. If you're self-hosting Nextcloud, Gitea, and a few other apps, Kubernetes adds complexity with zero benefit.


    TinyPod's Approach


    TinyPod uses Podman (a Docker-compatible runtime) to manage containers. We've deliberately chosen simplicity over complexity. One-click deploys, automatic networking, and managed SSL — without the Kubernetes learning curve.

    Kubernetes vs Docker: Do You Need K8s? | TinyPod | TinyPod