Ansible and bootc

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Ansible is not ideal for use with bootc, but for anyone with a lot of Ansible automation it’s hard to pivot to “the next thing”. Let’s use Ansible anyway..

Get bootc package version changes from SBOM

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To know what’s changing in a new bootc (Bootable Container) image use container tooling to generate a Software Bill of Materials (SBOM).

Bootstrapping bootc using Fedora CoreOS

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Getting bootc initially installed is a little different since it needs an ostree based OS. You could install a bootc image into any running Linux host, but I’ve been playing with Fedora CoreOS and using Ignition/Butane to configure Fedora CoreOS. So let’s use Fedora CoreOS on the host for bootstrapping bootc.

Build RHEL UBI containers with previous package versions

Red Hat UBI (Universal Base Images) are great. Except when you need to install a pervious package version, you can’t. By default RHEL Universal Base Images ship with only the latest version of packages. So how can you “rollback” if one of the package apps has a problem?