Ansible stuff

To test the ansible playbook before running

ansible-playbook --syntax-check webservers.yml
ansible-lint webservers.yml
yamllint webservers.yml
ansible-inventory --host testserver -i inventory/vagrant.ini

If you want to validate vagrant file

vagrant validate

To generate the keys required for TLS, run in project root.

openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
-subj /CN=localhost \
-keyout files/nginx.key -out files/nginx.crt