In my previous two posts (1,
2 ), we created Docker Debian and
Arch-based images from scratch for the i386 architecture.
In this blog post - last one in this series - we’ll do the same for yum based distributions like CentOS and Fedora.
Building your own Docker base images isn’t difficult and let you trust your distribution Gpg signing keys instead of the docker hub. As explained in the first blog post. The mkimage scripts in the contrib directory of the Moby project git repository is a good place to start if you want to build own docker images.
In a traditional environment, systems are installed from a CDROM. The configuration is executed by the system administrator through the installer. This soon becomes a borning and unpractical task when we need to set up a lot of systems also it is important that systems are configured in same - and hopefully correct - way.
In a traditional environment, this can be automated by booting via BOOTP/PXE boot and configured is by a system that “feeds” the installer. Examples are:
Actually, I got it a couple of months back but I didn’t have time to play with it and it took some time to get some parts from Aliexpress.
The Thinkpad W500 is probably the most powerful system that is compatible with Libreboot, it has a nice high-resolution display with a 1920 x 1200 resolution which is even a higher screen resolution than the Full HD resolution used on most new laptops today.
Binary blobs are bad. Having a closed source binary-only piece of software on your system is not only unacceptable for Free Software activists it also makes it more difficult to review what it really does and makes it more difficult to review it for security concerns.
Having your system vulnerable is also a bad thing of course. Can’t wait to get a computer system with an open CPU architecture like RISC-V.