Scaling Azure SQL Databases With an Elastic Pool

Introduction

In this guide, we will demonstrate how to scale Azure SQL databases using an Elastic Pool with Pulumi. An Elastic Pool allows you to manage and scale multiple databases that have varying and unpredictable usage patterns. This solution is cost-effective and ensures that resources are efficiently utilized.

Step-by-Step Explanation

Step 1: Set Up Pulumi and Azure Provider

1. Ensure you have Pulumi installed. If not, follow the installation guide.
2. Set up the Pulumi Azure provider by running pulumi config set azure:location <your-azure-location>.

Step 2: Create an Azure SQL Server

1. Define the Azure SQL Server resource in your Pulumi program.
2. Set the necessary properties such as resourceGroupName, location, administratorLogin, and administratorLoginPassword.

Step 3: Create an Elastic Pool

1. Define the Elastic Pool resource and associate it with the SQL Server created in the previous step.
2. Configure the Elastic Pool with properties such as dtu, databaseDtuMin, databaseDtuMax, and storageMb.

Step 4: Add Databases to the Elastic Pool

1. Define the Azure SQL Database resources and associate them with the Elastic Pool.
2. Set properties like resourceGroupName, location, serverName, and elasticPoolName.

Step 5: Deploy the Resources

1. Run pulumi up to deploy the resources.
2. Verify that the SQL Server, Elastic Pool, and Databases are created successfully in the Azure portal.

Conclusion

By following these steps, you can efficiently scale your Azure SQL databases using an Elastic Pool with Pulumi. This approach ensures that your databases can handle varying workloads while optimizing costs and resource usage.

Full Code Example

import * as pulumi from "@pulumi/pulumi";
import * as azure from "@pulumi/azure-native";

// Create an Azure Resource Group
const resourceGroup = new azure.resources.ResourceGroup("resourceGroup", {
    location: "<your-azure-location>",
});

// Create an Azure SQL Server
const sqlServer = new azure.sql.Server("sqlServer", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    administratorLogin: "sqladmin",
    administratorLoginPassword: "<your-password>",
    version: "12.0",
});

// Create an Elastic Pool
const elasticPool = new azure.sql.ElasticPool("elasticPool", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    serverName: sqlServer.name,
    sku: {
        name: "StandardPool",
        tier: "Standard",
        capacity: 50,
    },
    perDatabaseSettings: {
        minCapacity: 0.25,
        maxCapacity: 5,
    },
    maxSizeBytes: 52428800000, // 50 GB
});

// Create Azure SQL Databases and associate them with the Elastic Pool
const database1 = new azure.sql.Database("database1", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    serverName: sqlServer.name,
    elasticPoolId: elasticPool.id,
});

const database2 = new azure.sql.Database("database2", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    serverName: sqlServer.name,
    elasticPoolId: elasticPool.id,
});