Private endpoints concept in Azure - Mini Project: Build & Apply

Azure Private Endpoints Setup

📖 Scenario: You are setting up a secure connection to an Azure Storage Account using a private endpoint. This ensures that traffic between your virtual network and the storage account stays within the Microsoft Azure backbone network, not going over the public internet.

🎯 Goal: Create an Azure Private Endpoint resource connected to an existing Storage Account within a specified virtual network and subnet.

📋 What You'll Learn

Create a resource group variable with the exact name resource_group_name set to "myResourceGroup".

Create a variable storage_account_name with the exact value "mystorageaccount".

Create a variable vnet_name with the exact value "myVNet".

Create a variable subnet_name with the exact value "mySubnet".

Create a Private Endpoint resource named myPrivateEndpoint linked to the storage account and subnet.

💡 Why This Matters

🌍 Real World

Private endpoints are used to securely connect to Azure services without exposing them to the public internet, improving security and compliance.

💼 Career

Understanding private endpoints is essential for cloud engineers and architects to design secure network architectures in Azure.

1

Define Azure resource variables

Create variables called resource_group_name, storage_account_name, vnet_name, and subnet_name with these exact values: "myResourceGroup", "mystorageaccount", "myVNet", and "mySubnet" respectively.

Azure

# Define resource group and resource names
# Your code here

Hint

Use simple assignment statements to create the variables with the exact names and values.

2

Create Private Endpoint configuration dictionary

Create a dictionary called private_endpoint_config with keys "name", "resource_group", "subnet_id", and "private_link_service_connections". Set "name" to "myPrivateEndpoint", "resource_group" to resource_group_name, "subnet_id" to f"/subscriptions/your-subscription-id/resourceGroups/{resource_group_name}/providers/Microsoft.Network/virtualNetworks/{vnet_name}/subnets/{subnet_name}", and "private_link_service_connections" to a list with one dictionary containing "name" as "storageConnection", "private_link_service_id" as f"/subscriptions/your-subscription-id/resourceGroups/{resource_group_name}/providers/Microsoft.Storage/storageAccounts/{storage_account_name}", and "group_ids" as a list with "blob".

Azure

resource_group_name = "myResourceGroup"
storage_account_name = "mystorageaccount"
vnet_name = "myVNet"
subnet_name = "mySubnet"

# Create private_endpoint_config dictionary
# Your code here

Hint

Use an f-string to build the subnet_id and private_link_service_id paths with the variables.

3

Define a function to deploy the Private Endpoint

Create a function called deploy_private_endpoint that takes config as a parameter and returns a dictionary with keys "status" set to "deployed" and "details" set to the config parameter.

Azure

resource_group_name = "myResourceGroup"
storage_account_name = "mystorageaccount"
vnet_name = "myVNet"
subnet_name = "mySubnet"

private_endpoint_config = {
    "name": "myPrivateEndpoint",
    "resource_group": resource_group_name,
    "subnet_id": f"/subscriptions/your-subscription-id/resourceGroups/{resource_group_name}/providers/Microsoft.Network/virtualNetworks/{vnet_name}/subnets/{subnet_name}",
    "private_link_service_connections": [
        {
            "name": "storageConnection",
            "private_link_service_id": f"/subscriptions/your-subscription-id/resourceGroups/{resource_group_name}/providers/Microsoft.Storage/storageAccounts/{storage_account_name}",
            "group_ids": ["blob"]
        }
    ]
}

# Define deploy_private_endpoint function
# Your code here

Hint

Define a simple function that returns a dictionary with the deployment status and the passed config.

4

Call the deployment function with the configuration

Create a variable called deployment_result and assign it the result of calling deploy_private_endpoint with private_endpoint_config as the argument.

Azure

resource_group_name = "myResourceGroup"
storage_account_name = "mystorageaccount"
vnet_name = "myVNet"
subnet_name = "mySubnet"

private_endpoint_config = {
    "name": "myPrivateEndpoint",
    "resource_group": resource_group_name,
    "subnet_id": f"/subscriptions/your-subscription-id/resourceGroups/{resource_group_name}/providers/Microsoft.Network/virtualNetworks/{vnet_name}/subnets/{subnet_name}",
    "private_link_service_connections": [
        {
            "name": "storageConnection",
            "private_link_service_id": f"/subscriptions/your-subscription-id/resourceGroups/{resource_group_name}/providers/Microsoft.Storage/storageAccounts/{storage_account_name}",
            "group_ids": ["blob"]
        }
    ]
}

def deploy_private_endpoint(config):
    return {"status": "deployed", "details": config}

# Assign deployment_result by calling deploy_private_endpoint
# Your code here

Hint

Call the function with the config dictionary and assign the result to deployment_result.

Practice

1. What is the main purpose of an Azure Private Endpoint?

easy

A. To make Azure services publicly accessible over the internet

B. To increase the speed of internet browsing

C. To connect to Azure services privately within your network

D. To create virtual machines automatically

Solution

1. Step 1: Understand what a Private Endpoint does

   A Private Endpoint connects your network privately to Azure services, avoiding public internet.

2. Step 2: Compare options with this definition

   Only To connect to Azure services privately within your network describes private network connection to Azure services.

3. Final Answer:

   To connect to Azure services privately within your network -> Option C

4. Quick Check:

   Private Endpoint = Private connection [OK]

Hint: Private endpoints = private network access to Azure [OK]

Common Mistakes:

• Confusing private endpoint with public access
• Thinking it speeds up internet browsing
• Assuming it creates virtual machines

2. Which of the following is the correct way to create a Private Endpoint in Azure Portal?

easy

A. Go to Private Link Center > Private Endpoints > Create

B. Go to Virtual Machines > Create > Private Endpoint

C. Go to Storage Accounts > Networking > Public Access

D. Go to Azure Active Directory > Users > Private Endpoint

Solution

1. Step 1: Identify where Private Endpoints are managed

   Private Endpoints are created under Private Link Center in Azure Portal.

2. Step 2: Match the correct navigation path

   Go to Private Link Center > Private Endpoints > Create correctly shows Private Link Center > Private Endpoints > Create.

3. Final Answer:

   Go to Private Link Center > Private Endpoints > Create -> Option A

4. Quick Check:

   Private Endpoint creation is in Private Link Center [OK]

Hint: Private Endpoints are under Private Link Center in Azure Portal [OK]

Common Mistakes:

• Looking under Virtual Machines or Storage Accounts
• Confusing Private Endpoint with user management
• Selecting Public Access settings instead

3. Consider this scenario: You create a Private Endpoint for an Azure Storage Account. What happens to the network traffic when you access the storage account from your virtual network?

medium

A. Traffic goes over the public internet but is encrypted

B. Traffic is routed through a public IP address of the storage account

C. Traffic is blocked unless you use a VPN

D. Traffic is routed privately inside Azure network, avoiding public internet

Solution

1. Step 1: Understand Private Endpoint traffic routing

   Private Endpoints route traffic privately inside Azure, avoiding the public internet.

2. Step 2: Analyze each option

   Traffic is routed privately inside Azure network, avoiding public internet correctly states traffic is routed privately inside Azure network.

3. Final Answer:

   Traffic is routed privately inside Azure network, avoiding public internet -> Option D

4. Quick Check:

   Private Endpoint = private routing inside Azure [OK]

Hint: Private Endpoint routes traffic inside Azure, not public internet [OK]

Common Mistakes:

• Assuming traffic still uses public internet
• Thinking VPN is always required
• Confusing public IP routing with private endpoint

4. You created a Private Endpoint but your virtual machine cannot access the Azure SQL Database privately. What is the most likely cause?

medium

A. The virtual machine is not in the same subscription

B. The Private Endpoint DNS configuration is missing or incorrect

C. Azure SQL Database does not support Private Endpoints

D. The virtual machine needs a public IP address

Solution

1. Step 1: Identify common Private Endpoint issues

   DNS configuration is critical for Private Endpoint to resolve the private IP address.

2. Step 2: Evaluate options

   The Private Endpoint DNS configuration is missing or incorrect points to DNS misconfiguration, a common cause of access failure.

3. Final Answer:

   The Private Endpoint DNS configuration is missing or incorrect -> Option B

4. Quick Check:

   DNS setup is key for Private Endpoint access [OK]

Hint: Check DNS settings if Private Endpoint access fails [OK]

Common Mistakes:

• Assuming subscription difference blocks access
• Believing Azure SQL doesn't support Private Endpoints
• Thinking public IP is needed for private access

5. You want to secure access to an Azure Key Vault so only your virtual network can reach it privately. Which combination of Azure features should you use?

hard

A. Enable Private Endpoint for the Key Vault and configure DNS to resolve the private IP

B. Use a Public IP with firewall rules allowing your network IP range

C. Create a Private Endpoint for the Key Vault and configure virtual network service endpoints

D. Deploy a VPN gateway and connect to the Key Vault over public internet

Solution

1. Step 1: Understand securing Key Vault with private access

   Private Endpoint provides private IP access; DNS must resolve Key Vault name to this private IP.

2. Step 2: Analyze options for best practice

   Enable Private Endpoint for the Key Vault and configure DNS to resolve the private IP correctly combines Private Endpoint creation with DNS configuration for private access.

3. Final Answer:

   Enable Private Endpoint for the Key Vault and configure DNS to resolve the private IP -> Option A

4. Quick Check:

   Private Endpoint + DNS config = secure private access [OK]

Hint: Private Endpoint plus DNS setup secures private access [OK]

Common Mistakes:

• Confusing service endpoints with Private Endpoints
• Relying on public IP and firewall only
• Using VPN unnecessarily for private Azure service access