Docker/Unix Idioms and Security.

[iMerica]

Hi, thanks for putting this together. Just a few feedback items to consider:

• Eschew bash wrappers over docker and docker-compose (especially curl to bash ). Responsible users will have to read every line of the bash script before running it anyway. Which is a waste since everything this script does can already be done with plain old Docker or Compose. It would be better to just prepare a ready made docker-compose.yml file that can be copy/pasted and just run TARGET_HOST=example.com docker-compose up -d to run the entire stack.
• The image URL in the README is not hosted in Docker hub. This is concerning from a security POV since we now have to trust an unknown third party container registry to use it. Whereas on Docker Hub, we have community ratings, security scanning etc.
• Make it clear why AWS credentials are needed (-v ~/.aws:/root/.aws) to run a single instance of the stack. It currently doesn't seem required to run this locally yet the aws credentials are volume mounted in all the examples.