Category: modern apps

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VMware Certified Professional – VMware Cloud Foundation Administrator 2024

Not just another badge on the CV, but a key role with far-reaching consequences.

Until recently, members of the VMware vExpert Program had access to a wide range of VMware trial licenses. This ensured that these specialists could gain practical experience with VMware software and pass on this knowledge in the form of blogs, lectures or video tutorials.
This still applies, but with one restriction:
VMware’s core product VMware Cloud Foundation (VCF) is excluded from this.
In order to obtain test licenses for this product, vExperts must also be qualified as VMware Certified Professioanl (VCP) for VCF.
The same applies to holders of VMUG Adavantage membership.
Here, too, VCF licenses will only be available in future against proof of VCP-VCF certification (2V0-11.24 or later).
As a VMware trainer, there is another implication. One of the (many) requirements to be allowed to teach VCF courses in the future is also the VCP-VCF.

To learn the basics, Broadcom offers on-demand training.

But this training and certification is not only important in terms of licenses.
Everyone who will be working with this product in the future will gain basic knowledge of the VCF architecture, deployment and Day-2-Operations.

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vExpert 2023 – Subprogram Nominations

VMware annually grants the vExpert award to individuals who have made a special contribution to the VMware community. This can be either through publications, presentations, blogs, or work in the VMware User Group (VMUG). I am pleased to be part of the vExpert community for the seventh year in a row in 2023.

In addition to the common vExpert, there are subprograms for specialized application branches.

I applied for the three sub-programs vExpertPro, Application-Modernization and Multi-Cloud and was accepted in all three categories.

vExpertPro

The mission of the vExpert PRO program is to create a global network of vExperts willing to find new vExperts in their local communities, support them, and mentor them on their way to becoming vExperts.

For this purpose, vExpertPro exist in many regions of the world. I have been a member of this group since 2021 myself and have been confirmed for another year.

vExpert Multi-Cloud

The multi-cloud area covers large parts of the VMware Compute portfolio. The term cloud includes not only the public cloud, but also local data centers (private cloud) and combinations of both approaches (hybrid cloud). This includes numerous products such as vSphere, vSAN, VMware Cloud Foundation (VCF), Aria, VMware Cloud on AWS, Site Recovery Manager (SRM) or vCloud Director (VCD).

I submitted my first application for this relatively new vExpert path in 2023 and was accepted. Many thanks to the business unit for the decision.

vExpert Application Modernization

Application Modernization is all about Tanzu and Kubernetes, as well as the ecosystem around these technologies. The background was described in great detail by Keith Lee in his article “Announcing the VMware Application Modernization vExpert Program 2023“.

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Update Tanzu Workload Management

This is a brief guide on how to upgrade Tanzu Workload Management within the vSphere cluster.

Kubernetes Release and Patch Cycles

Kubernetes versions are specified as x.y.z following Semantic Versioning terminology, where x is the major version, y is the minor version, and z is the patch version. For example, v1.22.6 denotes a minor version 22 with patch level 6. Minor versions are released approximately every 3-4 months. In the meantime, there are several patches within the minor version.

The Kubernetes project maintains release branches for the last three minor versions (1.24, 1.23, 1.22). Since Kubernetes 1.19, newer versions receive patch support for about a year. So keeping the Kubernetes versions in Tanzu up to date is highly recommended.

Step 1 – Update vCenter

This step is not mandatory, but recommended. Updates on vCenter are often accompanied by a new Kubernetes versions. You can see notifications about updates in the vSphere Client.

Continue reading “Update Tanzu Workload Management”
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Upgrade of a K3s Lightweight Kubernetes Cluster

K3s is a lightweight, highly available open source Kubernetes cluster platform designed for easy and resource-efficient installation. K3s is provided in a package of less than 60 MB. The package is optimized for ARM platforms and can therefore also be run on hardware such as a Raspberry Pi, or as a guest VM on ESXi-on-ARM.

Prerequisites and collection of information

K3s is a cluster solution. That is why the order in which the nodes are updated is important. The update starts on the master node. So first we need to find out which node has this role. The easiest way to do this is with a kubectl command:

kubectl get node
NAME STATUS ROLES AGE VERSION
k3node1.lab.local Ready master 2y43d v1.19.3+k3s3
k3node2.lab.local Ready none 2y42d v1.19.3+k3s3
k3node3.lab.local Ready none 2y42d v1.19.3+k3s3

From the output above we see my three K3s nodes with FQDN, status, role, age and version. So here k3node1 has the master role.

As an alternative, you can also execute the command in verbose mode:

kubectl get node -o wide
Continue reading “Upgrade of a K3s Lightweight Kubernetes Cluster”