Default VPC and subnets in GCP - Mini Project: Build & Apply

Default VPC and Subnets Setup in GCP

📖 Scenario: You are setting up a Google Cloud Platform (GCP) project. You want to create a default Virtual Private Cloud (VPC) network with its default subnets in each region. This setup allows your cloud resources to communicate securely within the network.

🎯 Goal: Create a default VPC network named default and add default subnets for the regions us-central1, us-east1, and europe-west1. Each subnet should have the correct IP range as per GCP defaults.

📋 What You'll Learn

Create a dictionary called default_vpc with the key name set to default

Create a list called regions containing 'us-central1', 'us-east1', and 'europe-west1'

Create a dictionary called subnet_ip_ranges mapping each region to its default subnet IP range

Create a list called subnets that contains dictionaries for each subnet with keys name, region, and ip_cidr_range

Add the subnets list as a key in the default_vpc dictionary

💡 Why This Matters

🌍 Real World

Setting up a default VPC with subnets is a common first step in organizing cloud resources securely and efficiently in GCP.

💼 Career

Cloud engineers and architects often need to configure networks and subnets to ensure proper resource communication and security.

1

Create the default VPC dictionary

Create a dictionary called default_vpc with a key name set to the string 'default'.

GCP

# Create the default VPC dictionary
# Your code here

Need a hint?

Use curly braces {} to create a dictionary and set the key "name" to "default".

2

Create the regions list and subnet IP ranges dictionary

Create a list called regions containing the strings 'us-central1', 'us-east1', and 'europe-west1'. Then create a dictionary called subnet_ip_ranges mapping 'us-central1' to '10.128.0.0/20', 'us-east1' to '10.142.0.0/20', and 'europe-west1' to '10.132.0.0/20'.

GCP

default_vpc = {"name": "default"}
# Create the regions list
# Create the subnet_ip_ranges dictionary
# Your code here

Need a hint?

Use square brackets [] for the list and curly braces {} for the dictionary. Match the exact strings and IP ranges.

3

Create the subnets list with dictionaries for each region

Create a list called subnets that contains a dictionary for each region in regions. Each dictionary should have keys: name set to "default-" plus the region name, region set to the region name, and ip_cidr_range set to the corresponding value from subnet_ip_ranges. Use a for loop with variables region to build this list.

GCP

default_vpc = {"name": "default"}
regions = ["us-central1", "us-east1", "europe-west1"]
subnet_ip_ranges = {
    "us-central1": "10.128.0.0/20",
    "us-east1": "10.142.0.0/20",
    "europe-west1": "10.132.0.0/20"
}
# Create the subnets list using a for loop
# Your code here

Need a hint?

Use a for loop to iterate over regions. For each region, create a dictionary with the required keys and append it to subnets.

4

Add the subnets list to the default VPC dictionary

Add the subnets list as a key named subnets inside the default_vpc dictionary.

GCP

default_vpc = {"name": "default"}
regions = ["us-central1", "us-east1", "europe-west1"]
subnet_ip_ranges = {
    "us-central1": "10.128.0.0/20",
    "us-east1": "10.142.0.0/20",
    "europe-west1": "10.132.0.0/20"
}
subnets = []
for region in regions:
    subnet = {
        "name": f"default-{region}",
        "region": region,
        "ip_cidr_range": subnet_ip_ranges[region]
    }
    subnets.append(subnet)
# Add the subnets list to default_vpc
# Your code here

Need a hint?

Assign the subnets list to the key "subnets" in the default_vpc dictionary.