ICT-Governance-Framework-Application

Azure Infrastructure as Code Governance Implementation Guide

This document provides comprehensive guidance for implementing Azure governance best practices within the ICT Governance Framework using Infrastructure as Code (IaC) principles.

1. Introduction

Purpose

This implementation guide helps organizations integrate Azure-specific governance practices with their ICT Governance Framework, ensuring consistent governance while leveraging Azure’s native capabilities for infrastructure governance.

Scope

This guide covers:

Alignment with ICT Governance Framework

This implementation aligns with the three-tiered structure of the ICT Governance Framework:

2. Azure Governance Best Practices

Infrastructure as Code Principles

Azure governance should follow these key IaC principles:

Approved IaC Tools

Tool Primary Use Case Governance Application
Bicep Azure-native resources Primary tool for Azure resources with direct integration to Azure Resource Manager
Terraform Multi-cloud deployments Use for hybrid or multi-cloud scenarios with consistent syntax
ARM Templates Legacy Azure resources For compatibility with existing deployments
Microsoft365DSC Microsoft 365 configuration Extension of governance to SaaS platform
Azure Policy as Code Compliance automation Codifying governance rules as enforceable policies

3. Implementation Architecture

Azure Resource Organization

Management Groups
├── Organization
│   ├── Production (Subscription)
│   │   ├── ResourceGroup1
│   │   └── ResourceGroup2
│   ├── Non-Production (Subscription)
│   │   ├── ResourceGroup1
│   │   └── ResourceGroup2
│   └── Sandbox (Subscription)
│       └── ResourceGroups

Resource Governance Hierarchy

  1. Management Groups: Organization-wide policies and governance
  2. Subscriptions: Environment-specific controls and budgets
  3. Resource Groups: Workload-specific resources with consistent lifecycle
  4. Resources: Individual Azure services and components

Tagging Strategy

Tag Name Purpose Example Required
Owner Business owner of the resource “Finance” Yes
Environment Deployment environment “Production” Yes
CostCenter Financial allocation “CC-1234” Yes
Application Associated application “SAP” Yes
SecurityLevel Security classification “Restricted” Yes
ComplianceReq Compliance requirements “PCI,GDPR” As needed
DataClassification Data sensitivity level “Confidential” For data resources

4. Azure Policy as Code Implementation

Policy Definition Structure

# Example Policy Structure
name: "Require resource tagging"
description: "Enforce required tags on all resources"
mode: "Indexed"
parameters:
  - requiredTags:
      type: "Array"
      defaultValue: ["Owner", "Environment", "CostCenter"]
policyRule:
  if:
    field: "tags"
    exists: "false"
  then:
    effect: "deny"

Policy Assignment Levels

Implementation Steps

  1. Define policy definitions in code repository
  2. Create CI/CD pipelines for policy deployment
  3. Implement policy testing and validation
  4. Deploy policies with appropriate scoping
  5. Monitor policy compliance

5. Repository Structure

/azure-governance/
  ├── /policies/              # Azure Policy definitions
  │   ├── /security/          # Security policies
  │   ├── /cost/              # Cost management policies
  │   └── /tagging/           # Resource tagging policies
  ├── /templates/             # Reusable IaC templates
  │   ├── /modules/           # Bicep/Terraform modules
  │   └── /reference/         # Reference architectures
  ├── /environments/          # Environment-specific configurations
  │   ├── /dev/               # Development environment
  │   ├── /test/              # Test environment
  │   ├── /staging/           # Staging environment
  │   └── /prod/              # Production environment
  ├── /pipelines/             # CI/CD pipeline definitions
  ├── /scripts/               # Automation scripts
  ├── /app-store/             # Employee App Store components
  │   ├── /api/               # App Store API infrastructure
  │   ├── /web/               # App Store web portal
  │   ├── /admin/             # Admin portal for catalog management
  │   └── /validation/        # Validation workflow components
  └── /security-integration/   # Security monitoring integration
      ├── /siem/              # SIEM integration components
      ├── /cas/               # Cloud App Security components
      └── /discovery/         # Application discovery processing

6. CI/CD Pipeline Integration

Pipeline Stages

# Example Azure DevOps Pipeline for Infrastructure Deployment
stages:
  - stage: Validate
    jobs:
      - job: Lint
        steps:
          - script: bicep build **/*.bicep
      - job: Security
        steps:
          - task: AzurePolicy@1
            inputs:
              mode: 'audit'
              
  - stage: PreviewChanges
    jobs:
      - job: WhatIf
        steps:
          - task: AzureResourceManagerTemplateDeployment@3
            inputs:
              deploymentMode: 'Validation'
              whatIf: true
              
  - stage: Deploy
    jobs:
      - job: DeployInfrastructure
        steps:
          - task: AzureResourceManagerTemplateDeployment@3
            inputs:
              deploymentMode: 'Incremental'
              
  - stage: Verify
    jobs:
      - job: ComplianceScan
        steps:
          - task: AzurePolicy@1
            inputs:
              mode: 'audit'

Approval Workflows

Align CI/CD approvals with the ICT Governance Framework:

  1. Low-Risk Changes: Technology Steward approval
  2. Medium-Risk Changes: Domain Owner approval
  3. High-Risk Changes: ICT Governance Council approval

7. Drift Detection and Remediation

Detection Mechanisms

  1. Azure Resource Graph Queries:
    • Scheduled queries to compare deployed resources against IaC definitions
    • Alert on unauthorized manual changes
  2. Azure Policy Compliance:
    • Deploy audit and deny policies enforcing governance standards
    • Generate compliance reports through Azure Policy dashboard
  3. Azure Change Tracking:
    • Monitor configuration changes to Azure resources
    • Integrate with alert systems for unauthorized changes

Remediation Process

  1. Automated Remediation:
    • Implement auto-remediation for policy violations where appropriate
    • Use remediation tasks in Azure Policy
  2. Manual Remediation Workflow:
    • Generate pull requests for complex remediation needs
    • Document exemptions with justification and expiration
  3. Preventive Controls:
    • Deploy Deny policies for critical governance requirements
    • Implement just-in-time access for administrative functions

8. Governance Metrics and Reporting

Azure-Specific KPIs

KPI Description Target Measurement Method
Azure Policy Compliance Percentage of resources compliant with Azure policies >95% Azure Policy compliance reports
Drift Incident Rate Number of configuration drift incidents <5 per month Azure Resource Graph queries
IaC Deployment Rate Percentage of resources deployed via IaC >98% Deployment logs analysis
Resource Tagging Compliance Percentage of resources with required tags 100% Azure Resource Graph queries
Secure Score Microsoft Defender for Cloud secure score >85% Defender for Cloud reports
Shadow IT Detection Percentage of unauthorized applications discovered and processed 100% SIEM/CAS reports
Application Validation Rate Percentage of validation requests processed within SLA >95% App Store validation metrics
Application Compliance Rate Percentage of applications on company devices that are approved >95% App Store compliance reports

Integration with ICT Governance Dashboards

Add these Azure-specific metrics to existing dashboards:

  1. Executive Dashboard:
    • Azure Policy compliance overview
    • Azure security posture summary
    • Shadow IT detection overview
    • Application governance compliance
  2. Operational Dashboard:
    • Detailed Azure compliance metrics
    • Resource deployment and configuration status
    • Application validation queue status
    • Shadow IT remediation status
  3. Compliance Dashboard:
    • Azure Policy compliance details
    • Remediation status for non-compliant resources
    • Application compliance by department
    • Shadow IT trends and hotspots

9. Implementation Roadmap

Phase 1: Foundation (1-3 months)

Phase 2: Integration (3-6 months)

Phase 3: Automation (6-12 months)

10. Roles and Responsibilities

Role Responsibilities
ICT Governance Council Approve Azure governance standards and policies
Review compliance reports
Approve exceptions for high-risk items
Review critical shadow IT findings
Domain Owners Define domain-specific Azure governance requirements
Review and approve Azure architecture designs
Ensure alignment with business objectives
Application Governance Owner Define application approval policies
Oversee Employee App Store
Manage application validation workflow
Coordinate shadow IT remediation
Security Domain Owner Define security policies and standards
Oversee SIEM and Cloud App Security
Review security findings and vulnerabilities
Approve security exceptions
Technology Stewards Implement and maintain Azure governance controls
Develop and deploy IaC templates
Monitor compliance and remediate issues
Security Steward Operate SIEM and Cloud App Security
Coordinate validation of discovered applications
Implement security controls and monitoring
Applications Steward Administer Employee App Store
Review and categorize discovered applications
Manage application catalog
Technology Custodians Execute day-to-day Azure operations
Apply governance controls
Report issues and improvement opportunities

11. Best Practices and Guidelines

  1. Version Control:
    • Store all IaC and policy definitions in version control
    • Use branching strategies that align with change management policies
    • Require pull requests and code reviews for all changes
  2. Security Practices:
    • Scan IaC templates for security vulnerabilities
    • Use least privilege access for deployment pipelines
    • Implement secure secret management
  3. Documentation:
    • Document all Azure architecture decisions
    • Maintain up-to-date diagrams of Azure environments
    • Document exceptions with justification and expiration
  4. Testing:
    • Test all IaC deployments in non-production environments
    • Validate policy effects before deployment
    • Conduct regular disaster recovery testing

12. References and Resources