Use shorter directory names for beaker-hostgenerator #80
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When the Beaker setfile doesn't exist, Beaker calls beaker-hostgenerator and sets the :hosts_file_generated option. These directory names can become very long and in some cases exceed some limits when used with vagrant-libvirt.
This only uses the hostnames and discards all options passed. This can break some scenarios where a host is reused and a user may assume that passing in new options changes the host.
Currently a draft to test if it resolves the
Call to virDomainCreateWithFlags failed: Invalid machine name
error reported in voxpupuli/gha-puppet#49 (comment)