Suggestion - make explicit that the env variables should be set

PDF, Page 94.

I suggest you make sure that the reader has the right environment variables set on the folder he or she is working on. Maybe something like:

Remember to set the env variables locally:

export DOCKER_HOST=tcp://10.1.2.2:2376

export DOCKER_CERT_PATH=/Users/acampos/Resources/cdk/components/rhel/rhel-ose/.vagrant/machines/default/virtualbox/docker

export DOCKER_TLS_VERIFY=1

export DOCKER_API_VERSION=1.21

You can obtain the above variables by running eval "$(vagrant service-manager env docker)" in the folder that contains the Vagrantfile file.

I'm suggesting that because sometimes I had to stop the server, or shutdown the computer, or use another folder for testing, use different tabs for different tests, etc. Then, when I came back I couldn't run the service again. The most used expression was "WTF is going on???"

Thanks.