praiskup / helpers

Just some scripts I use on my box. Use on your own risk.

Helper scripts, some are related to Copr build system maintenance.

Generating copr images

The copr-image script is basically a generic way to modify a qcow2 image by using a ansible playbook. It downloads the given qcow2 image, prepares it with virt-sysprep, starts a VM using that image and executes the playbook against the VM. Once that is done, a new qcow2 image is generated from that VM, and the image is minimized.

Something like this could be implemented in virt-sysprep directly: https://bugzilla.redhat.com/show_bug.cgi?id=1954513

Quick HOWTO:

$ cat /etc/eimg/eimg.sh
# configure where to execute playbook from, and the playbook name
EIMG_COPR_PLAYBOOK_DIR=/home/praiskup/rh/projects/rhcopr/pagure/vm-provisioning
EIMG_COPR_PLAYBOOK=local-image-update.yml
$ copr-image https://download.fedoraproject.org/pub/fedora/linux/releases/34/Cloud/x86_64/images/Fedora-Cloud-Base-34-1.2.x86_64.qcow2
...
++ date -I
+ qemu-img convert -f qcow2 /tmp/wip-image-DZ4Fg.qcow2 -c -O qcow2 -o compat=0.10 /tmp/praiskup-eimg-hspElc/eimg-fixed-2021-04-28.qcow2
+ cleanup
+ rm -rf /tmp/wip-image-DZ4Fg.qcow2

... you can see that the final qcow image is on /tmp/praiskup-eimg-hspElc/eimg-fixed-2021-04-28.qcow2.

CI/CD of this project

Builds from the main branch are in copr repo.

Last build: