create vault password file (for accessing the vault. - this should be externalised at some point)
make a vault and specify your user (sudo) password as ansible_become_pass: <password>
echo "vault_password" > vault.txt
ansible-vault create secrets --vault-password-file=vault.txt
ansible-galaxy install -r requirements.yml -p ./roles
ansible-playbook playbook.yml -vv -u slave --extra-vars '@secrets' --vault-password-file=vault.txt -i hosts.yml
./go.sh