Enable HTTP/3 in traefik v3

The recent major release v3 of Traefik, brought new features or concretized some. Such as certificates via Tailscale and HTTP3. In this short guide, I want to present an example of configuration to use HTTP3 in Traefik. The change is not drastic, because the functionality already existed as experimental in the old version.

Requirements

• Linux machine with docker and compose (otherwise you wouldn’t be here)
• a domain
• with which a valid TLS certificate (HTTPS) can be obtained.
• in the example I use the domain, DNS and certificates from traefik.me

Procedure

1. create the files docker-compose.yml and tls.yml with the contents of the following chapters

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Activate HTTP/3 in traefik