1. Answers
  2. Securing GCP Applications with Cloud Identity-Aware Proxy

How do I secure GCP applications with Cloud Identity-Aware Proxy?

In this guide, we will secure a Google Cloud application using Cloud Identity-Aware Proxy (IAP). IAP allows you to control access to your applications running on GCP by verifying user identity and context of the request. We will create necessary IAM policies and bindings to secure the application.

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

// Create a Google Cloud IAM Policy for Identity-Aware Proxy
const iapPolicy = new gcp.iap.WebIamPolicy("iapPolicy", {
    project: "your-gcp-project-id",
    policyData: pulumi.output({
        bindings: [{
            role: "roles/iap.httpsResourceAccessor",
            members: ["user:example@example.com"], // Replace with your user
        }],
    }).apply(JSON.stringify),
});

// Create an IAM Binding for IAP
const iapBinding = new gcp.iap.WebIamBinding("iapBinding", {
    project: "your-gcp-project-id",
    role: "roles/iap.httpsResourceAccessor",
    members: ["user:example@example.com"], // Replace with your user
    condition: {
        title: "Allow access",
        description: "Allow access to the application",
        expression: "request.time < timestamp('2023-12-31T23:59:59Z')",
    },
});

// Create an IAM Member for IAP
const iapMember = new gcp.iap.WebIamMember("iapMember", {
    project: "your-gcp-project-id",
    role: "roles/iap.httpsResourceAccessor",
    member: "user:example@example.com", // Replace with your user
    condition: {
        title: "Allow access",
        description: "Allow access to the application",
        expression: "request.time < timestamp('2023-12-31T23:59:59Z')",
    },
});

// Export the URL of the IAP-secured application
export const iapAppUrl = pulumi.interpolate`https://iap.googleapis.com/v1/projects/${iapPolicy.project}/iap_web`;

Key Points

  • Created an IAM policy specifically for Identity-Aware Proxy.
  • Defined IAM bindings and members to control access to the application.
  • Used conditions to set time-based access controls.

Summary

We have secured a Google Cloud application using Cloud Identity-Aware Proxy by creating IAM policies, bindings, and members. This setup ensures that only authorized users can access the application, enhancing its security.

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