Fedora CoreOS - Embed Ignition Configuration into VM ImageJan 25
Fedora CoreOS (FCOS), and the used configuration system Ignition, does currently not support injecting the needed configuration file via so called config-drives. It is required to host this file on a separate web server or to use a custom data injection mechanism of one of the supported cloud providers (like user-data from Amazon AWS EC2). As this can be difficult for users with simpler use cases and with no access to external web servers, I want to provide a short overview how to embed the configuration file into the FCOS image itself.Read More…containercoreosfedoraguestfishignition
Fedora CoreOS - First StepsJan 18
Fedora CoreOS, the new operation system developed by the Fedora community and Red Hat, finally left the preview phase. As a user of the now deprecated Atomic Hosts (available for Fedora, CentOS, Red Hat Enterprise Linux) a good opportunity to try it out and give some hints how to configure your first working system.Read More…containercoreosfedoraignition
Virtualization - An IntroductionDec 28
When dealing with modern IT infrastructure the chances are pretty high that you already came in contact with virtualized systems. Be it running a virtual machine on your Linux or Windows computer with software like VirtualBox, using virtualized networks like VPN or working with modern container-based virtualization as provided by tooling such as Docker.
The broad term virtualization can cover a lot of ground and my main focus in this article lies on platform as well as container-based virtualization; with the goal to provide a basic distinction between different virtualization techniques while introducing some key concepts to build upon.Read More…ISAcontainervirtualization