dnsaas_username: PUT THE DESIGNATE PROVIDING OPENSTACK'S USERNAME HERE
dnsaas_password: PUT THE DESIGNATE PROVIDING OPENSTACK'S PASSWORD HERE
dcae_keystone_url: PUT THE MULTIVIM PROVIDED KEYSTONE API URL HERE
dcae_centos_7_image: PUT THE CENTOS7 VM IMAGE NAME HERE FOR DCAE LAUNCHED CENTOS7 VM
dnsaas_username: PUT THE DESIGNATE PROVIDING OPENSTACK'S USERNAME HERE
dnsaas_password: PUT THE DESIGNATE PROVIDING OPENSTACK'S PASSWORD HERE
dcae_keystone_url: PUT THE MULTIVIM PROVIDED KEYSTONE API URL HERE
dcae_centos_7_image: PUT THE CENTOS7 VM IMAGE NAME HERE FOR DCAE LAUNCHED CENTOS7 VM