How Do I Configure a GCP Compute Firewall With Pulumi Using TypeScript?

Introduction

In this guide, we will configure a Google Cloud Platform (GCP) Compute Firewall using Pulumi with TypeScript. Pulumi is an Infrastructure as Code (IaC) tool that allows you to define and manage cloud resources using familiar programming languages. By using Pulumi, you can automate the provisioning and management of your GCP resources, ensuring consistency and repeatability.

The key services involved in this solution are:

• Google Cloud Platform (GCP): A suite of cloud computing services that runs on the same infrastructure that Google uses internally for its end-user products.
• Pulumi: An open-source infrastructure as code tool that enables you to create, deploy, and manage cloud resources using programming languages.
• GCP Compute Firewall: A service that allows you to control the traffic to and from your virtual machine (VM) instances by defining firewall rules.

Step-by-Step Explanation

Step 1: Install Pulumi and GCP Plugin

First, ensure that you have Pulumi installed on your machine. You can install Pulumi by following the instructions on the Pulumi website. Additionally, you need to install the GCP plugin for Pulumi by running the following command:

pulumi plugin install resource gcp v6.0.0

Step 2: Create a New Pulumi Project

Create a new Pulumi project by running the following commands:

mkdir pulumi-gcp-firewall
cd pulumi-gcp-firewall
pulumi new typescript

Follow the prompts to set up your new Pulumi project.

Step 3: Configure GCP Authentication

Ensure that you have authenticated with GCP by setting up the GOOGLE_CLOUD_PROJECT environment variable and using the gcloud CLI to authenticate:

export GOOGLE_CLOUD_PROJECT=<your-gcp-project-id>
gcloud auth login

Step 4: Define the GCP Compute Firewall in Pulumi

In your Pulumi project, open the index.ts file and define the GCP Compute Firewall resource as follows:

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

const firewall = new gcp.compute.Firewall("my-firewall", {
    network: "default",
    allows: [{
        protocol: "tcp",
        ports: ["22", "80", "443"],
    }],
    sourceRanges: ["0.0.0.0/0"],
});

export const firewallName = firewall.name;

Step 5: Deploy the Pulumi Stack

Deploy the Pulumi stack by running the following command:

pulumi up

Review the changes and confirm the deployment. Pulumi will create the GCP Compute Firewall as defined in your index.ts file.

Key Points

• Pulumi Installation: Ensure Pulumi is installed and the GCP plugin is added.
• Project Setup: Create a new Pulumi project and configure GCP authentication.
• Firewall Definition: Define the GCP Compute Firewall resource in the index.ts file.
• Deployment: Deploy the Pulumi stack to create the firewall.

Conclusion

By following this guide, you have successfully configured a GCP Compute Firewall using Pulumi with TypeScript. Pulumi’s infrastructure as code approach allows you to manage your cloud resources programmatically, providing a more efficient and scalable way to handle your infrastructure. You can now extend this setup to include additional resources and configurations as needed.

Full Code Example

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

const firewall = new gcp.compute.Firewall("my-firewall", {
    network: "default",
    allows: [{
        protocol: "tcp",
        ports: ["22", "80", "443"],
    }],
    sourceRanges: ["0.0.0.0/0"],
});

export const firewallName = firewall.name;