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.
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.
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.
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.
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:
In the last few years we’ve seen a clear trend to adopt cloud strategies on customer side. Some already pusue a multi cloud strategy to get the most benefit from different offerings. But we may not forget, that infrastructure on-premises – the so called private cloud – is still the most common kind of virtual infrastructure. This is no surprise because on-premises infrastructure has without doubt some advantages. It’s not alone aspects of data privacy, data security and data sovereignty. There are also performance aspects such as low latency that keep customers from migration special workloads to the (public) cloud.
On the other hand there are some advantages of cloud offerings too. Such as flexible consumption, minimal maintenance, built in resilience, developer agility and the possibility to manage from anywhere.
To bridge the gap between on-premises needs and cloud based offerings, VMware has announced Project Arctic during VMworld 2021. Delivering benefits of the cloud to on-premises workloads.