Automating incident responses with Cloudflare notification webhooks

Question

Pulumi · Accepted Answer

To automate incident responses with Cloudflare notification webhooks, you can use Pulumi to create a notification policy that utilizes webhooks. These webhooks can be configured to trigger external services like incident management tools or custom APIs that handle the automated response.

Below is an example program in TypeScript using Pulumi's Cloudflare provider. This example demonstrates how to set up a Cloudflare `NotificationPolicy` resource that sends notifications to a webhook URL, which you would replace with the URL of your incident response service or automation server.

Firstly, you need to set up your Pulumi environment and choose the appropriate cloud provider, in this case, Cloudflare. After installing the Pulumi CLI and setting up your Cloudflare account, you can run the following program.

The program will create a `NotificationPolicy` that triggers when certain predefined conditions are met, such as security events. The `webhooksIntegrations` property accepts an array of webhooks that should be notified when an incident occurs.

Make sure you have the `@pulumi/cloudflare` package installed in your project by running `npm install @pulumi/cloudflare`.

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

// Instantiate a new Cloudflare Notification Policy
const notificationPolicy = new cloudflare.NotificationPolicy("myNotificationPolicy", {
    // Define the name of your notification policy
    name: "incident-response-policy",
    // Set the policy to enabled to ensure it triggers notifications
    enabled: true,
    // Define the conditions for your notifications, customize these to your needs
    filters: {
        eventTypes: ["security_event"] // This is an example, specify the events you're interested in
    },
    accountId: "your-cloudflare-account-id", // Replace with your actual Cloudflare account ID
    alertType: "event", // The type of alert, "event" in this case
    webhooksIntegrations: [
        {
            // Replace this with the webhook URL provided by your incident response tool or server
            id: "your-webhook-integration-id", // Your unique webhook integration ID
        },
    ],
});

// Export the webhook URL so you can easily retrieve it later if necessary
export const webhookUrl = notificationPolicy.webhooksIntegrations.apply(integrations => integrations[0].id);
```

Replace `"your-cloudflare-account-id"` and `"your-webhook-integration-id"` with your actual Cloudflare account ID and the webhook integration ID provided by your incident response or automation tool.

The `filters` object within the `NotificationPolicy` definition specifies when notifications should trigger. In the above example, it's set to `"security_event"`, which is a placeholder. You would replace it with the actual event type that matches your requirements.

Finally, the `webhooksIntegrations` array contains objects with an `id` property that should be set to the ID of your webhook integration. When the defined conditions in `filters` are met, Cloudflare will send a notification to this webhook URL.

The `export` statement at the end of the program will output the webhook URL used by the policy, which can be useful for testing or reference purposes.

Remember to replace the placeholder strings with your specifics. Once you have configured this, you can run `pulumi up` to deploy the notification policy through Pulumi.