Initial commit: Terraform vSphere resource groups module

- Add vSphere resource pool management
- Configure CPU and memory allocation controls
- Implement tagging system for organization
- Add comprehensive documentation

2025-11-01 06:18:59 +01:00

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Terraform vSphere Resource Groups Module

This Terraform module manages vSphere resource pools (resource groups) with CPU/memory allocation controls and integrated tagging for organization and management.

Purpose

Creates and manages vSphere resource pools with configurable resource allocation policies, reservations, limits, and shares. Includes automated tagging for environment and resource group classification.

What It Does

Creates resource pools under vSphere cluster
Configures CPU reservations, limits, and shares
Configures memory reservations, limits, and shares
Creates tag categories for Environment and ResourceGroupType
Applies tags to resource pools for organization

Usage

module "vsphere_resource_groups" {
  source = "./terraform-vsphere-resourcegroups"

  datacenter = "DC1"
  cluster_name = "Cluster01"
  environment = "prod"

  role_id = var.vault_role_id
  secret_id = var.vault_secret_id

  resource_groups = {
    kubernetes = {
      name = "Kubernetes"
      cpu_reservation = 4000
      cpu_shares = "high"
      memory_reservation = 8192
      memory_shares = "high"
    }
    docker = {
      name = "Docker"
      cpu_shares = "normal"
      memory_shares = "normal"
    }
    infra = {
      name = "Infrastructure"
      cpu_shares = "low"
      memory_shares = "low"
    }
  }
}

Key Features

Resource Allocation: CPU and memory reservations, limits, shares
Shares Mapping: Automatic conversion of low/normal/high to vSphere values (500/1000/2000)
Tagging System: Environment and resource group type tags
Flexible Configuration: Optional parameters with sensible defaults
Expandable Resources: Allow resources to grow beyond reservations

Default Resource Groups

Kubernetes: For Kubernetes infrastructure
Docker: For Docker containers
Infra: For infrastructure services

Prerequisites

VMware vSphere with compute cluster
Vault with vSphere credentials
Terraform >= 0.13

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