Reverse proxy with authentication using erlend/caddy Docker image.

1. Clone this repository.
2. Pull the docker image: docker pull erlend/caddy.
3. Generate a Tailscale "Auth key": Tailscale Settings - Keys.
4. Create a plain text file named authkey.txt in this directory and paste the key from step 2 into the file and save it.
5. Start the service: docker compose up.
6. Verify that the proxy is up with curl example or by browsing http:https://example. Note: MagicDNS required. Alternatively find the ip-address of the "example" machine here: Tailscale Machines and connect to http:https://100.x.x.x