The packer file and corresponding script in this folder are used
for building OpenStack images to be used for Cloud Infra jobs on
Nordix Jenkins.

The packer file is specific to City Cloud Frankfurt region since
it contains the Frankfurt region endpoint and UUID of the network
created there. For other regions or clouds, a similar file needs
to be created. The actual script that is executed by packer on
provisioned temporary instances should work on any Ubuntu1804
regardless of cloud and region.

A final note is that the file authorized_keys.packer is used for
injecting user keys into image during cloud-init phase for ssh
access to the slaves for troubleshooting. If you want to have
access to the slaves, please add your ssh public key in it.