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The Evolution of Hybrid Model of Containerized and Virtualized Models.

So far, the IT industry has mostly lived a binary world i.e. either VMs or containers, from a platform standpoint.

Today, We present to the industry a thought process which expands from platform architecture to innovating business models to accelerating digital transformations through declarative coexistence.

In other words, it is the existence of virtual machines and containers (and associated practices) on a common platform.


Pattle is a PaaS based operating approach which brings the efficiencies for scale and, ease of management and care for workloads (Vishal Anand).

(‘p’ from pet- virtualized workloads – and ‘attle’ from cattle – containerized workloads – denotes a mix of architectural characteristics existent by design for consistency)

When that happens on a common Kubernetes-native platform — it results into converged opens source-based platform practices.

The Philosophy of Pattle Service Model:

Diagram chart shows how virtual machines and containers in scenario 1 and 2 results in scenario 3
This model (scenario 3) brings several advantages.

It is about consistency in terms of skills, storage, networking, automation, development, ecosystem, web console, command line interface, everything as YAML, CI/CD, Infrastructure as code, GitOps, observability, portability & interoperability, user experience and more. 

Modernization of legacy monolithic applications is often tedious and slow, and this approach allows managing both the legacy applications and new cloud native applications with similar standards and methodologies.

While we are maturing this model at a fast pace, we have now started rehosting sophisticated workloads to Kubernetes-native platform in a “pattle” way which was simply impossible in the past.

Rehosting of ‘Active Directory and its Ecosystem’ to OpenShift Container Platform (by leveraging OpenShift Virtualization operator), combined with containerization, is such an example.

Diagram chart shows from Source (VM based Legacy Environment) to Target (OpenShift Container Platform with OpenShift Virtualization)

We successfully rehosted Active Directory (and all of its components), .Net application, databases, webserver etc. all running on Windows operating system, to OpenShift Virtualization. We are now also containerizing some of the components right there on the same OpenShift Container Platform.

Disclaimer: Views are our own and personal ones.