WilliamLam.com

vSphere Event-Driven Automation using Tanzu Application Platform (TAP) on Tanzu Kubernetes Grid Service

by // Leave a Comment

Right before the holiday, I had spent some time exploring Tanzu Application Platform (TAP), which also recently GA'ed. TAP provides developers with an application-aware platform that focuses on making the developer experience easy for developing, building and running applications on Kubernetes.


If you are interested in a quick technical deep dive into TAP, check out this video by Scott Sisil, introducing TAP:

One of the core components of TAP is the Cloud Native Runtime (CNR), which is VMware's commercial offering of the popular open source project Knative. The VMware Event Broker Appliance (VEBA) project also makes use of Knative as our backend to provide customers with an event-driven automation solution.

Early on in the VEBA project, we knew that we wanted to develop and innovate with the community in the open but we also understood there would be users who would want an officially supported offering that they can call or file support requests when needed. Early last year, Michael Gasch, the lead architect for VEBA started to port the code from the VMware Event Router, which is the heart of VEBA into CNR's Tanzu Sources for vSphere and start unifying the two code bases. The goal is to ensure that users of the open source project VEBA will also have a consistent user experience in terms of function deployment when using the commercial offering.

As shared back in Dec, I was able to successfully deploy TAP, CNR and Sources for vSphere all running on our Tanzu Kubernetes Grid Service which includes both our on-premises offering called vSphere with Tanzu and our managed service offering called VMware Cloud with Tanzu services. For those interested, you can find the instructions below on how to deploy and configure TAP to enable vSphere event-driven automation capabilities for your infrastructure.

[Read more...]

Custom webhook function to publish events into VMware Event Broker Appliance (VEBA)

by // Leave a Comment

In my previous article, I demonstrated how you can leverage the upcoming v0.7 release of the VMware Event Broker Appliance (VEBA) to publish and consume custom events to easily extend your event-driven automation to other event sources. As a recap, this is accomplished by constructing and sending a conformant CloudEvent to VEBA, which can then be consumed by your functions.


This is perfect for external event sources that can create a custom HTTP payload that conforms to the CloudEvent specification, however not all solutions have this type of functionality or flexibility. An alternative solution to this is to simply create a VEBA function that can accept a custom payload and then handle the transformation of the data into a valid CloudEvent and then forward that off to broker running within VEBA. This is just one of the many benefits of Knative, the backend for VEBA, where each function deployment includes an endpoint that is automatically served as a subdomain to the VEBA hostname (e.g. https://my-function.NAMESPACE.VEBA-FQDN)


This solution would enable external "Event Producer" to send a non-CloudEvent payload which can then be processed by your function and re-publish as a conformant CloudEvent that can then be consumed by other function and services.

  1. Event Provider would make HTTP request to the function webhook with a custom payload
  2. A conformant CloudEvent payload is constructed by the webhook function
  3. Webhook function will then forward the CloudEvent internally to the VMware Event Broker Appliance
  4. VEBA functions can now react to these custom CloudEvents

[Read more...]

IT Admins can be a key enabler to an organizations App Modernization efforts

by // Leave a Comment

Whether you call it Digital Transformation, Digital First, Application Modernization (App Modernization) or some other fancy name, the fact of the matter is, almost every single business is going through some form of transformation to become more competitive in this new digital era. According to a recent survey by VMware, 91% of executives agree their major app initiative in 2021 is to migrate and modernize legacy apps. While this transformation has been going on for some time, the COVID-19 global pandemic has certainly super charged its acceleration and is now a critical imperative for many organizations to be able to create and deliver new digital experiences for their end users.

As part of my role within the VMware Cloud team, I have been taking a closer look at how some of our customers are thinking about their App Modernization strategy and to better understand their overall plan and thought process. With some of the recent customer conversations that I have had, many organizations are just starting their App Modernization journey and one of the challenges that I have observed is simply where and how to get started. There are certainly many different factors that can affect or even slow down these initiatives including organizational structure, tension between lines of businesses, development, operations and IT teams. However, before an organization can decide what application/services they are interested in modernizing, they need to first have a complete understanding of their current application estate.

This understanding is critical before an organization can determine the appropriate modernization strategy (Retain, Rehost, Replatform, Refactor or Retire) for a given application.


[Read more...]