4 Add support to the packer-build job to use clouds.yaml for openstack builder
5 configuration rather than through the cloud-env file. This allows us to
6 simplify the template configuration for openstack builders moving forward.
9 Minimum packer version 1.2.5 is now required for the packer-build job.
11 **lf-infra-packer-build** macro now requires 2 new variables to be passed.
13 #. **openstack:** Set to true if template is built using the openstack builder
14 #. **openstack-cloud:** The clouds.yaml cloud to use when running ``packer build``