What is the process for using Aquasec with Google Cloud Functions in TypeScript

Question

Pulumi · Accepted Answer

Using Aqua Security with Google Cloud Functions involves several steps. Aqua Security provides a cloud-native security platform designed to provide visibility and control over your cloud infrastructure, including Google Cloud Functions. To use Aqua Security with Google Cloud Functions, you need to ensure that your functions' images are scanned for vulnerabilities and are compliant with the policies that Aqua Security enforces.

The following TypeScript program demonstrates how to use Pulumi to set up Google Cloud Functions and integrate with Aqua Security. For demonstration purposes, we are creating a simple Google Cloud Function and then using hypothetical functions to represent the process of scanning with Aqua Security, as Aqua Security integration is typically done via the Aqua Security platform rather than directly through infrastructure as code.

Please note, Pulumi does not have direct integration with Aqua Security as of my knowledge cutoff in early 2023. Therefore, you would need to use the Aqua Security APIs or CLI out of band from Pulumi to implement actual image scanning and policy enforcement.

Here’s a basic outline of the process in Pulumi using TypeScript:

1. Define your Google Cloud Function using Pulumi.
2. Implement hypothetical functions to interact with Aqua Security (since direct integration is not available in Pulumi).
3. Run the Pulumi program to deploy your infrastructure.

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

// Define a Google Cloud Function
const helloWorldFunction = new gcp.cloudfunctions.Function("helloWorldFunction", {
    runtime: "nodejs14", // Specify the runtime environment
    availableMemoryMb: 128,
    sourceArchiveBucket: "your-source-archive-bucket-name",
    sourceArchiveObject: "your-source-archive-object-name",
    entryPoint: "helloWorld", // The name of the exported function to execute
    triggerHttp: true, // Indicating that the function can be triggered over HTTP
    region: "us-central1",
});

// Export the cloud function URL so that it can be accessed
export const functionUrl = helloWorldFunction.httpsTriggerUrl;

// A hypothetical function to submit an image to Aqua Security for scanning
async function submitImageToAquaSecurity(image: string) {
    // Placeholder for code to interact with Aqua Security APIs
    // In reality, you would use Aqua Security's API or CLI to scan your image
    console.log(`Submitting image ${image} to Aqua Security for scanning...`);
    // Logic to call the Aqua Security API would go here
}

// Simulate the process of scanning the image with Aqua Security as part of the Pulumi deployment
pulumi.all([helloWorldFunction.name]).apply(([functionName]) => {
    // This is a simplified representation and this interaction should happen outside of Pulumi
    // in your CI/CD pipeline where images are built and pushed to a container registry.
    submitImageToAquaSecurity(`gcr.io/project-name/${functionName}`);
});
```

In this program, we:

- Import the necessary modules from the Pulumi Google Cloud Platform (GCP) package and Pulumi SDK.
- Define a Google Cloud Function with the name `helloWorldFunction`, specifying the runtime, memory, location of the source code, entry point, and an HTTP trigger.
- Export the HTTP URL of the function, which you can use to invoke it after deployment.
- Create a hypothetical function, `submitImageToAquaSecurity`, to demonstrate where you would add the logic to interact with the Aqua Security platform to scan your cloud function images.
- Use the `pulumi.all().apply()` method to simulate a post-deployment step where the image that the Cloud Function uses would be submitted for scanning.

To correctly implement this in a real-world scenario, you would need to:

- Build your Google Cloud Function's source code into a Docker image.
- Push this image to a container registry like Google Container Registry (GCR).
- Use Aqua Security's API/CLI to scan the image in the registry.
- Check the scan results to ensure that there are no vulnerabilities or policy violations.
- Deploy the Cloud Function using Pulumi, referencing a scanned and approved image.

This Pulumi code is a starting point and does not include the actual implementation for scanning with Aqua Security, as this would typically be done as part of a CI/CD pipeline process.

Remember to replace placeholders like `your-source-archive-bucket-name` and `your-source-archive-object-name` with your specific values, and also implement the proper integration with Aqua Security using their API or CLI tools.