Bug#710273: build-debian-cloud & OpenStack
On 05/29/2013 10:28 PM, Paul Tonelli wrote:
> Linked to#710273 <mailto:710273@bugs.debian.org>
>
> https://github.com/andsens/build-debian-cloud
>
> with a few modifications to the ec2 scripts, you can easily create a
> working debian image for openstack (juste remove the part which uses an
> amazon volume and use an image file)
Hi,
Below, you will find remarks which I am able to give because of
information I grabbed on the debian-cloud list. It is well possible that
I am mistaking because I haven't checked things myself, if so, please
correct me.
My understanding is that, to use build-debian-cloud, you need an
instance of a cloud system (eg: AWS or OpenStack, or something like
that) to be running. If I am right, then I prefer not to build a cloud
image this way, I prefer to just build it locally without any need of
having a cloud, only with things available in a "normal" Debian system.
Also, AWS uses Xen, which more or less imposes Grub (and if I'm not
mistaking, grub 1 / grub legacy), so that pvgrub / pygrub can be used.
I made the choice to use syslinux (and in fact, extlinux, which works
only with ext{1,2,3} partitions), because it is easier and lighter. My
understanding is that extlinux wouldn't work for AWS, as it uses pygrub
/ pvgrub, and doesn't support the HVM mode of Xen.
Let me know if I'm wrong with the above points, I'm really not sure
about them.
I had a quick look to the source code. It really looks nice, with
plugins, hooks and so on. However, it is made out of 148 files to just
build an image, while my script has 189 lines in a single file. So
probably it covers a different set of needs. For my use case, I prefer
to keep things simple, even if that means that my images would probably
not work on other types of cloud.
Please let me know your thoughts, I wouldn't mind having another
approach if I am wrong, and I am open to suggestions.
Thomas
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