openSUSE 13.1 was discontinued on Feb 3rd, 2016, so defaulting
to it doesn't make sense (see https://en.opensuse.org/Lifetime).
Leap 42.2 is the most current release that is supported by
disk-image-builder and being tested in a 3rd party ci.
Enable functests for it to ensure we're not regressing again.
Moved to non-voting gate first.
Depends-On: Iff495b3cd0b6c3558c44cf4883651eca67b572d6
Change-Id: Iae6cd34a5853f1e309861c554d94d8595cbd9993
Mount all the usual /dev /sys /proc pseudo filesystems during the
root.d phase in order to make sure they are available for the rpm
post-installation phases.
Change-Id: I28221debf1036d9eb5137161757eb30811eafab1
The refresh operation must happen after the cache has been added in
order to ensure that whatever is in the cache is still relevant to
the current build and we are not using stale packages.
Change-Id: Iafd718e9738f85b8c235806c027665730f44d89b
