Clone the gist into your working directory:
git clone email@example.com:96670d2eb66a8ad9854b6f52a2b5339c.git vagrant-ansible-neo cd vagrant-ansible-neo
Install the neo4j role into the working directory
ansible-galaxy install julienroubieu.neo4j -p .
Bring up the vagrant box
vagrant up --no-provision
Provision neo4j and it's pre-reqs (java etc)
Confirm that neo4j is listening on the guest. It shouldn't be necessary, but do it anyway. Sometimes vagrant doesn't seem to honor the 7474:7474 guest/host port-forwarding rule until after "vagrant ssh" has been invoked once.
vagrant ssh -c "curl localhost:7474"
Confirm the host can connect to the guest's neo server. If you still can't connect, wait a while or try issuing the "vagrant reload" command and try again