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This is a project to build a small cloud image that has useful tools and
function for debugging or developing cloud infrastructure.
To use it, you would do something like:
* download buildroot and setup environment
$ wget http://FIXME/buildroot-version.tar.gz
$ tar -xvf buildroot-version.tar.gz
$ ln -snf buildroot-version buildroot/
$ mkdir output download
* Build buildroot for a given arch
$ make ARCH=i386 OUT_D=$PWD/output/i386
This will do a full buildroot build, which will take a while. The output
That mini-cloudimg is interested in is output/i386/rootfs.tar.
That file is the full buildroot filesystem, and is used as input for
subsequent steps here.
* Download a kernel to use.
mini-cloudimg expects the kernel in deb format. It is built using the '-virtual'
ubuntu kernels as a starting point.
$ ARCH=i386
$ url=http://FIXME/linux-image-2.6.38-8-virtual_2.6.38-8.42_$ARCH.deb
$ wget "$url" -O "download/${url##*/}"
$ kernel_deb="download/${url##*/}"
* build disk images using bin/bundle
$ sudo ./bin/bundle -v output/$ARCH/rootfs.tar "$kernel_deb" output/$ARCH/images
* Then, test using the images
$ kvm -drive file=disk.img,if=virtio -nographic
$ kvm -kernel kernel -initrd initrd -drive file=blank.img,if=virtio -nographic
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