Using azure appinsights with privatedns

Question

Pulumi · Accepted Answer

To create an Azure Application Insights instance and integrate it with Azure's private DNS, you'll need to set up the following resources:

1. **Application Insights**: This service helps you to monitor your live applications. It automatically detects performance anomalies and includes powerful analytics tools to help you diagnose issues and understand what users actually do with your app.

2. **Private DNS Zone**: This allows you to use your own domain name rather than the Azure-provided names. This makes your services more discoverable and can potentially integrate more seamlessly with other services in Azure.

Below is a Pulumi program written in TypeScript that shows how to create these resources using Pulumi's Azure package. The program starts by creating an Application Insights instance and then establishes a Private DNS Zone. Note that Pulumi allows us to define our cloud resources declaratively using real programming languages. This enables fine-grained control, reusability, and version control for our infrastructure.

Let's go through the setup:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as azure from "@pulumi/azure";

// Configure the location to deploy your resources.
const location = "West Europe";

// Create an Azure Resource Group
const resourceGroup = new azure.core.ResourceGroup("myResourceGroup", { location });

// Create an Application Insights instance
const appInsights = new azure.appinsights.Insights("myAppInsights", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    applicationType: "web", // Change based on your application type
});

// Create a Private DNS zone
const privateDnsZone = new azure.privatedns.Zone("myPrivateDnsZone", {
    resourceGroupName: resourceGroup.name,
    location: "Global", // Global is the supported value for DNS zones
    tags: {
        environment: "production",
    },
});

// Export the Application Insights Instrumentation Key
export const instrumentationKey = appInsights.instrumentationKey;

// Export the Private DNS zone name
export const dnsZoneName = privateDnsZone.name;
```

In this program:
- We start by importing the required Pulumi libraries.
- We then create an Azure Resource Group, which is a logical container into which Azure resources are deployed and managed.
- Next, we define an Application Insights resource with the `azure.appinsights.Insights` class, specifying the resource group it belongs to, the location, and the type of application it's meant to monitor.
- After that, we create a Private DNS Zone using the `azure.privatedns.Zone` class, assigning it to the same resource group and setting its location to "Global", which is required for DNS Zones.
- Lastly, we export the instrumentation key of the Application Insights resource and the name of the Private DNS zone we created. These outputs can be used to integrate with other services or for output validation.

**Note**: To run this Pulumi program, you need to have Pulumi CLI installed and be logged in to your Azure account. You can write and save this TypeScript code to a file (for example, `index.ts`) within a Pulumi project. After setting up the Pulumi project and stack, including installing necessary packages with `npm install`, use `pulumi up` to create the resources in Azure. Make sure you have the required Azure provider credentials configured for Pulumi to use.