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Action Based Extensibility (ABX) Now Available On-Premises


In this blog we are going to cover an enhancement to an already awesome capability with in Cloud Assembly know as Action Based Extensibility (check out the link to see what’s under the covers) or ABX. ABX is VMware’s serverless function capability built into Cloud Assembly. Prior to this months release of features into Cloud Assembly we only supported running ABX functions from AWS LAMBDA and Azure Functions. We recognize that not every customer can run things in the cloud for many reasons, so we are bring serverless capabilities on-premise with this latest release of features fro Cloud Assembly.


How To Setup It Up:

In order to run ABX functions on-premise you will need to down load and install the new ABX appliance. This is a small Photon based appliance which hosts the services which execute the functions you run as a part of your deployment extensibility. To get to the appliance download you just need to to go the Integration area of Cloud Assembly:

Once on the integrations screen you can select the ADD INTEGRATIONS button to see the full list of currently available integrations for Cloud Assembly. Select on the “Extensibility Action On Prem” tile to get to the configuration screen for on premise ABX:

Now on the configuration screen you can download the new Extensibility Cloud Proxy but clicking on the “NEW CLOUD PROXY” button and then selecting “DOWNLOAD OVA”:

From here you follow your normal process for installing an OVA in vSphere. During the OVA configuration you will be asked for the One Time Key (I removed my key from the screenshot 🙂 ) which is step three of the above screenshot. This OTK is what links this Extensibility Cloud Proxy to your subscription of Cloud Assembly. Once you have deployed the Extensibility Cloud Proxy and powered it on, approximately 10 minutes later, you will see the proxy listed in the Cloud Proxy’s list:


Now that the Extensibility Cloud Proxy  is setup and ready to use, you can go back to the Integrations area in Cloud Assembly and select the “Extensibility Actions On Prem” panel again to configure the necessary information for your environment:


Using The On Premise ABX Capability:

In this post I am not going to go into what ABX can do. There are a ton of blogs on that topic (Blog, Blog, Blog). Here I just want to show how easy it is to start using the on premise ABX capability once the new Extensibility Cloud Proxy is installed. To use the new on premise functions you only need to select “On Prem” from the list of FaaS Providers:


That’s it!! Now this extensibility will run from the new on premise extensibility cloud giving you a vast amount of capabilities to custom Python and Nodejs scripts within your datacenter in a serverless fashion!



With almost all capabilities VMware introduces we always want to provide choice for our customers so they can use the best tool, or capability configuration, to fit their business needs. Now with the new on premise capability for ABX you can run serverless actions using public cloud offerings or run all your actions locally to your datacenter.


Getting Started:


Other Cool Blogs:

vRealize Automation Cloud API’s First

VMware Uses Code Stream Too!!!





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