e57fe8bdf7
puppet element calls install_puppet.sh script from system-config repo, which depends on either curl or wget being installed in the system. Some minimal images like debian jessie or ubuntu xenial miss those packages and cause puppet element to fail when building the image. Change-Id: Ic5124906b19b82d134a611e68fc7c5dd6fc88702
Using diskimage-builder to build devstack-gate nodes
In addition to being able to just download and consume images that are the same as what run devstack-gate, it's easy to make your own for local dev or testing - or just for fun.
Install diskimage-builder
Install the dependencies:
sudo apt-get install kpartx qemu-utils curl python-yamlInstall diskimage-builder:
sudo -H pip install diskimage-builderBuild an image
Building an image is simple, we have a script!
DISTRO="ubuntu" bash tools/build-image.shSee the script for environment variables to set distribution, etc. You should be left with a .qcow2 image file of your selected distribution.
It is a good idea to set TMP_DIR to somewhere with
plenty of space to avoid the disappointment of a full-disk mid-way
through the script run.
While testing, consider exporting DIB_OFFLINE=true, to skip updating the cache.
Mounting the image
If you would like to examine the contents of the image, you can mount it on a loopback device using qemu-nbd.
sudo apt-get install qemu-utils
sudo modprobe nbd max_part=16
sudo mkdir -p /tmp/newimage
sudo qemu-nbd -c /dev/nbd1 /path/to/devstack-gate-precise.qcow2
sudo mount /dev/nbd1p1 /tmp/newimageor use the scripts
sudo apt-get install qemu-utils
sudo modprobe nbd max_part=16
sudo tools/mount-image.sh devstack-gate-precise.qcow2
sudo tools/umount-image.shOther things
It's a qcow2 image, so you can do tons of things with it. You can upload it to glance, you can boot it using kvm, and you can even copy it to a cloud server, replace the contents of the server with it and kexec the new kernel.