ngrok for Docker

Heavily leveraged from fnichol/ngrok⁠ - Thank You.

Changes to the Dockerfile include:

• Using ADD to get the zip rather than installing and running curl.
• Leveraging the official busybox ubuntu 14.04 image
• Changed from an ENTRYPOINT to a CMD to force use of Env Variables
• Removed EXPOSE 4040

Example usage:

docker run --rm --name ngrok -e "HTTP_PORT=192.168.0.100:8080" centurylink/ngrok

Valid environmental variables are: HTTP_PORT and HTTPS_PORT

View the docker logs for the running container to see the subdomain URL(ngrok.com) assigned to access.

Detailed ngrok instructions here⁠.