Usage and cost estimator

Max(
    x concurrent connections /  Conns per NCU,
    y connections per second /  conns per second per NCU,
    z Mbps / Mbps per NCU
) =  NCUs

Cost Analysis Tool for Standard V3 Plan

Overview

The NGINXaaS for Azure cost analysis tool provides a detailed hourly cost breakdown of your NGINXaaS deployment usage for each component (NCU, WAF, Ports, Data). It fetches real-time metrics directly from Azure Monitor using the Azure SDK and calculates costs based on actual usage.

Prerequisites

Before using the cost analysis script:

1. Python 3.7+ installed on your system

2. pip3 (Python package manager) installed

3. Azure SDK for Python installed:

   Copy

   pip3 install azure-identity azure-mgmt-monitor

4. NGINXaaS for Azure deployment with monitoring enabled

5. Azure AD Tenant ID (required for authentication)

6. Monitoring Reader permissions on your NGINXaaS resource

Setting up Azure Permissions

Get Tenant ID:

1. Go to Azure Portal → Microsoft Entra ID → Overview
2. Copy the Tenant ID

Grant Access:

1. Go to your NGINX resource → Access control (IAM) → Add role assignment
2. Role: Monitoring Reader → Assign to your user account

Download and Usage

Download Script

Download nginxaas_cost_analysis.py script

Basic Usage

Run the script with the required parameters:

python3 nginxaas_cost_analysis.py \
        --resource-id "/subscriptions/xxx/resourceGroups/my-rg/providers/Nginx.NginxPlus/nginxDeployments/my-nginx" \
        --location "eastus2" \
        --date-range "2025-11-18T00:00:00Z/2025-11-19T23:59:59Z" \
        --tenant-id "your-tenant-id" \
        --output "my-cost-analysis.csv"

Required Parameters

Sample Output

🌐 Using InteractiveBrowserCredential with tenant: d106871e-7b91-4733-8423-f98586303b68
📈 Processing 72 hours of data...
============================================================
📈 COST ANALYSIS SUMMARY
============================================================
Total Analysis Period: 72 hours
Total Cost: $32.40

🕐 HOURLY COST BREAKDOWN (First 5 hours):
------------------------------------------------------------
Hour 1 - 2025-11-18T00:00:00Z
    Fixed: $0.250 | WAF: $0.000 | NCU: $0.160
    Ports: $0.000 | Data: $0.000 | Total: $0.410

Hour 2 - 2025-11-18T01:00:00Z
    Fixed: $0.250 | WAF: $0.000 | NCU: $0.160
    Ports: $0.000 | Data: $0.000 | Total: $0.410

Hour 3 - 2025-11-18T02:00:00Z
    Fixed: $0.250 | WAF: $0.000 | NCU: $0.160
    Ports: $0.000 | Data: $0.000 | Total: $0.410

Hour 4 - 2025-11-18T03:00:00Z
    Fixed: $0.250 | WAF: $0.000 | NCU: $0.160
    Ports: $0.000 | Data: $0.000 | Total: $0.410

Hour 5 - 2025-11-18T04:00:00Z
    Fixed: $0.250 | WAF: $0.000 | NCU: $0.160
    Ports: $0.000 | Data: $0.000 | Total: $0.410

... and 67 more hours

✅ Cost breakdown exported to nginxaas_cost_breakdown.csv
     📊 Summary: 72 hours, Total cost: $32.40
✅ Cost analysis completed successfully!

Understanding the Results

Cost Components

• Fixed costs: Fixed deployment cost (varies by region and WAF usage)
• NCU costs: Variable costs based on actual NCU consumption
• WAF costs: Additional costs when Web Application Firewall is enabled
• Port costs: Additional costs for listen ports beyond the first 5
• Data processing: Costs for data processed ($0.005/GB across all regions)

Additional Billing Resources

For comprehensive billing information and cost planning, refer to these additional resources:

• Usage and Cost Estimator: Interactive tool for planning and estimating costs before deployment
• Billing Overview: Complete billing model explanation and pricing details

This cost analysis tool helps you understand your actual NGINX for Azure spending by analyzing real usage metrics, enabling you to optimize costs and plan future deployments effectively.