BigTop docker-hadoop.sh failing to start
It seems that you're running docker-hadoop.sh on windows with mingw32. The Docker Provisioner is tested to work on Mac and Amazon Linux for Bigtop releases just because of the resource limitation. So I'm not quite sure what's the story at Windows side ;)
However, from your error log:
undefined method[]' for nil:NilClass (NoMethodError)
I'm pretty sure that the issue is related to our ruby YAML parsing feature:https://github.com/apache/bigtop/blob/master/provisioner/docker/docker-hadoop.sh#L138
To this end, I'd suggest you to stick with Vagrant Provisioner on Windows.If you'd like to help us in making the feature compatible with Windows, feel free to reach out to dev@bigtop.apache.org