Hi,

XEN classic is almost dead. Their documentation is very weak and many
links do not work anymore for years. At the other hand, KVM and
exspecially Proxmox are huge. So, I would put the whole XEN Topic to an
awareness level.
What I totally disagree with is docker. They do have serious financial
issues and almost everything is sold to Mirantis. If one truly dives
into docker, you will notice some big disadvantages (like no real init,
one main daemon etc.). Podman from RedHat will overcome all these problems.

Docker and Kubernetes do not fit in.

What I would like to see is LXC/LXD, which are really popular and they
don't need a shady Docker-Hub. Proxmox offers them directly via GUI and
with the Proxmox Cluster System, a HA system like K8S is avaiable.

On 28.11.19 16:51, Fabian Thorns wrote:
Dear all,

before removing the 'draft' status from the 305 objectives page
(https://wiki.lpi.org/wiki/LPIC-305_Objectives_V3.0), what do you
think about the current relevance of Xen (weight: 4) and Qemu (weight:
6) compared to Kubernetes (currently contained in a weight 2
objective). To me it seems that Xen becomes less and less relevant
while Qemu/KVM is almost entirely used through other means (libvirt,
proxmox, ...), so testing their specific options and configuration
knobs might be arguable.

On the other hand, Docker is more and more used through Kubernetes.
Currently we just cover the overall concepts of Kubernetes. What if we
would reduce the weights of Xen and Qemu to 1 and 2 or 2 and 3
respectively to just cover the architecture in order to free up 5 to 7
weight points which we could spend on Kubernetes instead? We could
create another objective about understanding the architecture of
Kubernetes, set up a Kubernetes cluster through kubeadm and understand
the roles and functions of the most important Kubernetes objects
(pods, replicasets, deployments, daemonsets, services, ingress). I
wouldn't test creating and managing these objects since that would be
more related to the DevOps certification, but cover enough for a
kubernetes node admin to understand what their users are doing.

Let me know your thoughts :)

Fabian


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