Caddyfile

todoauthn.com {
	tls /etc/caddy/certs/todoauthn.com+2.pem /etc/caddy/certs/todoauthn.com+2-key.pem

	handle {
		root * /ui
		try_files {path} /index.html
		file_server
	}
}

auth.todoauthn.com {
	tls /etc/caddy/certs/todoauthn.com+2.pem /etc/caddy/certs/todoauthn.com+2-key.pem

    handle {
        reverse_proxy auth:443 {
            header_down Access-Control-Allow-Origin https://todoauthn.com
            header_down Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS"
            header_down Access-Control-Allow-Headers "*"
        }
    }
}

api.todoauthn.com {
	tls /etc/caddy/certs/todoauthn.com+2.pem /etc/caddy/certs/todoauthn.com+2-key.pem

    handle {
        reverse_proxy api:5001 {
            header_down Access-Control-Allow-Origin https://todoauthn.com
            header_down Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS"
            header_down Access-Control-Allow-Headers "*"
        }
    }
}

swagger.todoauthn.com {
	tls /etc/caddy/certs/todoauthn.com+2.pem /etc/caddy/certs/todoauthn.com+2-key.pem

    # dont judge me
    handle /swagger.json {
        reverse_proxy api:5001
    }
    handle {
        reverse_proxy swagger:8080
    }
}