Open a local tunnel with serveo.net
docker run --rm -ti \
-e LOCAL_HOST=$(ifconfig | grep 'inet ' | grep -v '127.0.0.1' | head -n1 | awk '{print $2}' | cut -d: -f2) \
-e LOCAL_PORT=3000 \
-e REMOTE_HOST=my-test-subdomain \
-e REMOTE_PORT=3333\
evert0n/serveo
Then open your browser at http://my-test-subdomain.serveo.net:3333