Building a bootc image for Red Hat Enterprise Linux (RHEL) “Image Mode” requires Red Hat Subscription Entitlement details. This can be tricky to get from the build server. Let’s fix that.
Tag: RHEL
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..
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.
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?
bootc has the potential to be groundbreaking (for Enterprise server Linux). A scalable and immutable OS for servers. (Although I like the term Atomic better).
Red Hat Enterprise Linux 9 (RHEL 9) and Docker don’t get along very well. Running a container that requires older iptables (and not nftables) can be a problem.