Adds the ability to set $DIB_LOCAL_IMAGE to use as the base cloud image
for a Fedora image build. There are many repetitve tasks that are done
every image build. With this change you can build an image with the
fedora and vm element and then reuse the resulting image as input to
future image builds. This greatly reduces future image build times.
For instance 99-up-to-date is already taking almost 2 minutes (even with
rpm downloads already cached) for Fedora 20, and is only going to keep
taking longer. By having a local up to date Fedora cloud image, this
time can be saved on each image build.
There is one minor change to support this in that /tmp/grub needs to get
cleaned up at the end of image builds so that the image can be reused.
Plus, there is no reason for it to stick around anyway. (didn't think
this was worth a seperate commit).
Change-Id: Ic74d138da922ecc99c38c27f105170d90009a84a
Rather than dublicating code to implement rhel or any
other derivitive, this patch introduces an rpm-distro
element that should be used as a dependency.
Change-Id: I8a92bb041764d03f430b438f0013704f79a8674c
Setting up a routine to run at first time the system boot may vary from
distribution to distribution. This patch will remove the logic from the
diskimage-builder code and put it into the elements.
The base element will now deploy a dib-first-boot script and each OS
element will ensure that this script runs at rc.local time. By doing
that we will put the OS specific stuff in the OS elements and remove
the embedded code out of the img-function file.
Change-Id: I24c5d1b1185de5693f145347fe912245f1ba7dfe
Boot time was 30 seconds shorter in an all-in-one devstack
environment.
Thanks to Ghe Rivero for a pointer to the solution
https://bugzilla.redhat.com/show_bug.cgi?id=208275
Change-Id: I90d0c96d5659326ba67d6119b96d9a4113adf7fe
