About me:

Backed up by 20 years of experience in the IT-Industry, not only with comdivision but also with various national and international companies, Matthias’ goal is to comprehensibly communicate complex solutions by using a clear, understandable language.

As a certified VMware architect, designer and trainer, Matthias holds various VMware certifications VCP3-6 DCV, VCP6-7 Cloud, VCP NV, VCIX-NV, VCIX-DCV, VCAP7-CMA Design and is also a VMware Certified Instructor (VCI) Level 2. He also teaches current and beta deliveries since 2009. 

Matthias was invited into the selected group of mentors in 2012 and VMware honored him for his outstanding contribution in teaching new technologies.

Since 2012 he is also responsible for class development for Cloud Management and Automation products of VMware. In 2014 Matthias was invited into the selected group of NSX instructors. They rewarded him with the vExpert title for Datacenter, Cloud and NSX for his contribution to community regarding vRealize Automation extensibility with vCenter Orchestrator, Network Virtualization and Automation.

My recent blog posts:

How to use the vRealize Orchestrator API Explorer


It took me a while to figure out, how to use the vRO API explorer creating necessary code for workflows. Now is the time to share the knowledge. The API explorer, together with the MOB (Managed Object Browser) of the vCenter Server, provides a very powerful combination to develop code. Often you need to create specific objects to reconfigure virtual machines or hosts for example and you need to collect the information, how an object is created on the one hand and on the other hand how to manipulate an object.

Read More

Useful settings Horizon View Client on Mac


Me writing a blogpost about Horizon View, never thought that this is going to happen, but never say never.

Like many others, I migrated from Windows to Mac and using Mac OS natively. Some time ago we started using remote apps within the Horizon View Client, which is pretty cool. Instead of connecting to my View Desktop I can use an application direct on my Mac.

Read More

Custom XML objects in vRealize Orchestrator


Lately I had the issue that I needed to create custom XML objects based on variables. In first place it sounds simple, but in the end, there are a couple of different methods doing this. This article will discuss these options.

The first method is a simple string, but if the object gets a bit larger, this is not very useful.

Read More

Rabbit MQ routing key configuration


Two weeks ago, I had a problem connecting VMware vCloud Director to vRealize Orchestrator using Rabbit MQ as a message bus between those systems. The base configuration of Rabbit MQ was not a big deal, even clustering the message bus system for high availability, adding an exchange, queues, connecting vCD and vRO, everything was easy and straight forward, BUT: I didn’t get any messages into the right queues. This was my starting point.

As most of you guys know, I am a big fan of vRO (vRealize Orchestrator). I didn’t do any of the configuration in Rabbit MQ using the management interface, I configured everything using vRO but the graphical UI is very useful to verify what the workflows did.

After the installation of Rabbit MQ, I used the documentation (official RMQ documentation: https://www.rabbitmq.com/documentation.html) and some blogs I found, I needed to configure RMQ, but how? Now vRO comes into play, because it is shipped with a preinstalled AMQP plugin, containing all needed workflows to configure the message broker.

Read More

NSX 6.3 - Resize NSX conrollers - Lab Only


Watch Matthias Eisner explain how to customize the NSX controller sizing for a lab environment.

VMware KB with further information: 

Read More

vRealize Automation - Installation - HTTP 400 - Bad Request Error


Watch Matthias Eisner present on a discovered vRealize Automation issue when FQDNs are containing _.

This is documented with VMware, but something we saw recently often during vRA implementations.

Read More

The (rest of the) comdivision team