How do I deploy a GCP projects iamcustomrole with Pulumi?

In this guide, we will create a custom IAM role in Google Cloud Platform (GCP) using Pulumi. A custom IAM role allows you to define specific permissions that are not covered by predefined roles. This can be useful for enforcing the principle of least privilege by granting only the necessary permissions to users or service accounts.

Below is a Pulumi program written in TypeScript that demonstrates how to create a custom IAM role in GCP. The program includes the necessary imports, resource definitions, and comments to help you understand each step.

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

// Define the custom IAM role
const customRole = new gcp.projects.IAMCustomRole("customRole", {
    roleId: "customRoleId",
    title: "Custom Role Title",
    description: "A custom role for specific permissions",
    project: "your-gcp-project-id", // Replace with your GCP project ID
    permissions: [
        "storage.buckets.get",
        "storage.objects.list",
        "resourcemanager.projects.get"
    ],
    stage: "GA" // Stage can be "GA", "BETA", or "ALPHA"
});

// Export the role ID and title
export const roleId = customRole.roleId;
export const roleTitle = customRole.title;

Key Points:

• We import the necessary Pulumi and GCP libraries.
• We define a custom IAM role using gcp.projects.IAMCustomRole.
• The custom role includes a role ID, title, description, project ID, permissions, and stage.
• We export the role ID and title as stack outputs.

Summary:

In this guide, we created a custom IAM role in GCP using Pulumi. The custom role was defined with specific permissions and associated with a GCP project. This allows for more granular control over permissions in your GCP environment.