If a cached copy of the file doesn't exist, cache_url() passes a
non-existent path to -z/--time-cond and you see this warning:
Warning: Illegal date format for -z, --timecond (and not a file name).
Warning: Disabling time condition. See curl_getdate(3) for valid date syntax.
It works just fine, but the warning is ugly.
Change-Id: Ic6f13a2c596b988308d7fca9cd1745e5d48ae5fb
This also switches to using curl which some people may not have
installed. However, curl is far superior for this type of download.
Change-Id: I7ac5a84b30eb8daad320c082f976931c41a24669
Qemu-nbd does not perform well with older versions of qemu due to
the lack of writeback caching mode. It also only builds qcow2 images
and there is a desire for raw image support. Finally, qemu-nbd makes
it very difficult to build images concurrently due to the somewhat
opaque nature of how it selects a /dev/nbd# device. losetup, on
the other hand, makes this process very straight forward.
Change-Id: I309fad8af4fd1e8d1720c17b65e1897a76d5e897
Co-Author: Clint Byrum <clint@fewbar.com>
This switches $CLOUD_IMAGES and $RELEASE to the DIB_ namespace so
they will survive future changes to the sanitisation of the build
environment.
Change-Id: I7dc2aa82fb9ef452705b080cc404f41046014f20
Relies on https://cloud-images.ubuntu.com being served by a cert signed
by one of the CA's trusted by the build host.
Change-Id: I690b755acca54789110c2c8fa723c8b87b2485c9
This is a necessary but not complete step towards supporting Fedora and Suse
distributions. Further work is needed (e.g. to quiesce daemons on
installation).
Change-Id: If3ea6093d41a21de755db52328226b84b5a3ede6
