Docker Enter script

docker-enter

#!/bin/bash
set -e

# Check for nsenter. If not found, install it
boot2docker ssh '[ -f /var/lib/boot2docker/nsenter ] || docker run --rm -v /var/lib/boot2docker/:/target jpetazzo/nsenter'

# Use bash if no command is specified
args=$@
if [[ $# = 1 ]]; then
  args+=(/bin/bash)
fi

boot2docker ssh -t sudo /var/lib/boot2docker/docker-enter "${args[@]}"

Borrowed from http://viget.com/extend/how-to-use-docker-on-os-x-the-missing-guide