This fixes a fairly large tempfile leak. Vagrant uses a template
renderer to write network configuration files locally to disk. Then,
that temporarily file is uploaded to the remote host and moved into
place. Since Vagrant is such a short-lived process, GC never came along
and cleaned up those tempfiles, resulting in many temporary files being
created through regular Vagrant usage.
The Util::Tempfile class uses a block to ensure the temporary file is
deleted when the block finishes. This API required small tweaks to the
usage, but provides more safety to ensure the files are deleted.
Refactor and repair regular expression attempting to match present interfaces.
The refactored regular expression will match on enp* ens* eth* variants.
CoreOS vagrant's configuration code look for interface names starting with 'enp0', but in my case when deploying CoreOS image to libvirt environment interfaces had names 'ens4v1', 'ens5v2'
This patch should fix it, but it might be part of a bigger issue and having these two patterns might not cover all possible configurations.
Seth Vargo
Joshua Harshman
Kalman Hazins
Pavel Karoukin
Mitchell Hashimoto
Artur Roszczyk