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Traefik vs Cosmos Cloud: Proxy Approaches

Quick Verdict

Traefik is the better dedicated reverse proxy with Docker-native service discovery, extensive middleware, and a proven track record. Cosmos Cloud is an all-in-one platform where the proxy is one feature among many (container management, app store, VPN, security). Choose Traefik if proxy quality matters most; choose Cosmos Cloud if you want one tool for everything.

Overview

Traefik is a cloud-native reverse proxy that automatically discovers Docker containers via labels and handles SSL certificates, routing, and middleware without manual config changes. Current version: v3.6.8.

Cosmos Cloud is a self-hosting platform combining Docker management, reverse proxy, app marketplace, VPN (Constellation), user auth, and DDoS protection in a single package. Current version: v0.21.7.

Feature Comparison

Feature Traefik v3.6 Cosmos Cloud v0.20
Docker auto-discovery Yes (labels) Container listing
Automatic SSL Built-in ACME Built-in
Configuration Docker labels + YAML Web UI
Container management No Yes
App marketplace No Yes
User management No Yes (multi-user, 2FA)
VPN integration No Yes (Constellation)
DDoS protection No Yes (Smart Shield)
Middleware chain Extensive (15+) Limited
ForwardAuth (SSO) Yes Built-in identity provider
Dashboard Read-only Full management UI
Load balancing Yes (multiple algorithms) Basic
TCP/UDP proxying Yes Yes
HTTP/3 Experimental No
RAM usage ~50-80 MB ~150-200 MB

When to Choose Each

Choose Traefik If...

  • You want Docker-native auto-discovery (add labels, done)
  • You need advanced middleware (rate limiting, circuit breaking, retry)
  • You need ForwardAuth with Authelia or Authentik for SSO
  • You already have a container management tool (Portainer, Dockge)
  • You want a proven, battle-tested proxy used by enterprises
  • You want config-as-code via Docker labels

Choose Cosmos Cloud If...

  • You want one platform for proxy + management + security
  • You're setting up a new self-hosting environment from scratch
  • You want built-in authentication without external identity providers
  • You want an app marketplace for one-click deployments
  • You don't need advanced proxy middleware

Final Verdict

Traefik for proxy quality, Cosmos Cloud for platform simplicity. Traefik is the better reverse proxy — its auto-discovery, middleware chain, and ForwardAuth integration are features Cosmos Cloud's built-in proxy can't match.

But Cosmos Cloud's value proposition isn't being the best proxy — it's being a good-enough proxy bundled with container management, security, and an app store. If that all-in-one approach appeals to you and you don't need Traefik's advanced features, Cosmos Cloud simplifies your stack.

The modular approach (Traefik + Portainer + Authelia) gives you the best tool for each job but requires configuring three separate systems. Cosmos Cloud gives you one thing to configure.

Frequently Asked Questions

Can I add Traefik labels to Cosmos Cloud-managed containers?

Not in a meaningful way. Cosmos Cloud manages its own proxy routing through its UI. To use Traefik, you'd need to disable Cosmos Cloud's built-in proxy, which undermines its integrated approach.

Does Cosmos Cloud support ForwardAuth like Traefik?

Cosmos Cloud has its own built-in identity provider instead of relying on ForwardAuth. It handles authentication internally rather than delegating to external providers like Authelia or Authentik.

Which is easier for beginners?

Cosmos Cloud. It provides a guided setup, app store, and visual management. Traefik requires understanding Docker labels, entrypoints, and certificate resolvers — a steeper learning curve for beginners.

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