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NSX Alarms in vCenter Server using vSphere Events in vSphere 8

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I recently learned about a really cool capability that is part of the NSX Easy Install feature that was initially introduced back in vSphere 7.0 Update 3, allowing administrators to easily deploy, configure and manage NSX directly from vCenter Server using the vSphere UI.

Here is a demo of this feature in action by fellow VMware colleague Vladimir Velikov, one of the Engineers who worked on the initial integration:

While reviewing the latest NSX 4.0.1.1 release notes, which adds support for vSphere 8 and DPU-based offloading, I found this little nugget at the very end of the What's New section under NSX vSphere UI Integration which states:

NSX Events Integrated in vCenter

🤩 whoa, the possibilities of this integration is immense, especially from an automation and event-driven standpoint ... In fact, this is something VMware Event Broker Appliance (VEBA) users have been asking for, a way to tap into the rich Alarms and Events provided by NSX, similiar to what vCenter Server provides out of the box with over 2000+ events.

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Heads Up - Potential missing vCenter Server Events due to sequence ID overflow

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We had a few users who had reported issues with using the VMware Event Broker Appliance (VEBA) solution where VEBA was not receiving any events from the connected vCenter Server. This was really puzzling for the team to debug because the user clearly saw events in both the vSphere UI as well as using vSphere Automation Clients like PowerCLI.

After a bit of debugging with a few of our users (huge thanks to Michael Gasch for driving this), we discovered that in certain environments, the generated sequence number that is used for the vCenter Event ID has overflowed and causes the value to have a negative number. To further complicate the debugging, there are actually two ways of fetching vCenter Server Events using the vSphere API. The first is to just look at the LatestPage property, which will return the most recent events and not care about event ID and the second is to use CreateCollectorForEvents() which is more of an event stream and it does care about the event ID being non-negative. You can probably guess which vSphere API VEBA was using, not only because of our check-pointing feature but LatestPage could lose events from a client request point of view for chatty environments.

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vSphere Event-Driven Automation using VMware Event Router on VMware Cloud on AWS with Knative or AWS EventBridge

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The VMware Event Broker Application (VEBA) is a popular VMware Event-Driven Automation solution that can be consumed using either the open source or commercial offering from VMware. The commercial offering of VEBA is already available to customers today via our Tanzu Application Platform (TAP) offering, which I have previously written about here. The open source offering of VEBA can be consumed in either a pre-packaged Virtual Appliance or a native Kubernetes Application called for those with an existing Kubernetes cluster.

Deploying the VEBA Virtual Appliance is well documented (here and here) and I wanted to spend some time covering the native Kubernetes deployment model, as it there are actually a couple of options and most recently, this came up in a customer discussions as they were interested in forwarding vSphere Events from VEBA to AWS EventBridge.

In the open source version of VEBA, there is a component called the VMware Event Router, which is responsible for connecting to an event source such as vCenter Server and then forwarding those events to a processor which can either be a a function that you have written to react to a specific event using Knative or to AWS EventBridge to integrate with other AWS native services like CloudWatch as an example.

To demonstrate the two different ways to deploy the VMware Event Router, I have created the following Github repo https://github.com/lamw/vsphere-event-driven-automation-vmware-event-router that provides an example to easily deploy the VMware Event Router to an existing Kubernetes cluster. For my environment, I will be using VMware Cloud on AWS and the managed Kubernetes offering called Tanzu services, which is included as part of the base offering and there is no additional cost of running the Kubernetes infrastructure, which is certainly an added bonus 😀

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