vRA 8.2 Blueprint Engineering: Automating Multi-Node Tenant Pod Provisioning
How building declarative YAML Cloud Templates in vRealize Automation (vRA 8.2) automated multi-tenant VM, NSX-T network, and storage provisioning.
βManual vSphere template deployment forces cloud administrators to perform 40 click-through wizard steps per VM. vRealize Automation Cloud Templates reduce this to a single API payload.β
While scaling private cloud infrastructure at NTT Data, tenant onboarding bottlenecks occurred because systems engineers manually configured vSphere storage policies and network adapters for every new application pod.
Architecture: Declarative vRA 8.2 Cloud Templates
We engineered modular vRealize Automation (vRA 8.2) Cloud Templates using declarative YAML.
- Dynamic Network Binding: Dynamically binds VM network adapters to NSX-T Logical Switches using environment inputs (
env: production). - Custom Storage Flavor Sizing: Provisions vSAN Storage Policies (
RAID-1vsRAID-5) automatically based on the userβs selected T-Shirt size profile.
[!NOTE] Integrate vRA Cloud Templates with ABX (Action Based Extensibility) Python scripts to trigger dynamic IP reservation in Infoblox or iTop prior to VM creation.
# # vRA 8.2 Cloud Template YAML Snippet for Multi-Tier App Pod
formatVersion: 1
inputs:
flavor:
type: string
title: Instance Sizing
enum:
- small
- medium
- large
resources:
Cloud_vSphere_Machine_1:
type: Cloud.vSphere.Machine
properties:
image: Ubuntu-20.04-Template
flavor: '${input.flavor}'
networks:
- network: '${resource.Cloud_NSX_Network_1.id}'
Cloud_NSX_Network_1:
type: Cloud.NSX.Network
properties:
networkType: routed
The Verdict
Key Takeaway
Standardize Private Cloud Provisioning with Declarative vRA Cloud Templates.
Deploying vRealize Automation (vRA 8.2) blueprints accelerates tenant environment delivery from 10 business days to under 15 minutes.
Sachin Kumar Sharma
Associate Director (Infrastructure & Cloud Architecture Strategy) | 20+ Yrs Exp
Architecting resilient multi-cloud enterprise landing zones, SDN overlay fabrics, DevSecFinOps automation pipelines, and autonomous Agentic AI platforms.