Running PowerShell Script in All Azure Subscriptions: A Step-by-Step Guide

As an Azure administrator, you often need to perform tasks that require running PowerShell scripts across multiple subscriptions. Whether it’s for resource management, security auditing, or automation, running scripts in all Azure subscriptions can be a daunting task. But fear not, dear reader! In this comprehensive guide, we’ll take you through the process of running PowerShell scripts in all Azure subscriptions, effortlessly and efficiently.

Prerequisites

Before we dive into the nitty-gritty, make sure you have the following prerequisites in place:

• Az PowerShell module installed (version 4.4.0 or later)
• Azure CLI installed (version 2.0.49 or later)
• A valid Azure subscription with the necessary permissions
• Powershell 7 or later (recommended)

Getting Started with Azure PowerShell

If you’re new to Azure PowerShell, let’s get started with the basics. Open PowerShell and run the following command to import the Az module:

Import-Module Az

This will load the Az module, which provides a unified interface for managing Azure resources. If you’re prompted to install the module, follow the instructions to install and then re-run the command.

Authenticating with Azure

Next, you need to authenticate with Azure using the following command:

Connect-AzAccount

This will open a browser window where you can sign in with your Azure credentials. Once authenticated, you’ll see a list of your Azure subscriptions. Note the subscription ID(s) you want to run the script against.

Getting a List of All Azure Subscriptions

To get a list of all Azure subscriptions, use the following command:

Get-AzSubscription

This will display a table with information about each subscription, including the subscription ID, name, and state. Take note of the subscription IDs you want to target.

Storing Subscription IDs in a Variable

For convenience, let’s store the subscription IDs in a variable. Create an array to store the subscription IDs:

$subscriptions = @()

Add the subscription IDs to the array:

$subscriptions += "subscription-id-1", "subscription-id-2", "subscription-id-3"

Replace “subscription-id-1”, “subscription-id-2”, and “subscription-id-3” with the actual subscription IDs you want to target.

Running the PowerShell Script in All Azure Subscriptions

Now that you have the subscription IDs stored in a variable, it’s time to run the PowerShell script in all Azure subscriptions. Create a foreach loop to iterate through the subscription IDs:

foreach ($subscription in $subscriptions) {
  Set-AzContext -SubscriptionId $subscription
  # Your PowerShell script here
  Write-Host "Running script in subscription $($subscription)"
}

Replace “# Your PowerShell script here” with the actual script you want to run in each subscription. The `Set-AzContext` cmdlet sets the current Azure context to the specified subscription ID, allowing you to run the script in each subscription.

Example: Running a Script to Get All Azure Resource Groups

Let’s say you want to get a list of all Azure resource groups in each subscription. Here’s an example script:

foreach ($subscription in $subscriptions) {
  Set-AzContext -SubscriptionId $subscription
  $resourceGroups = Get-AzResourceGroup
  Write-Host "Resource groups in subscription $($subscription):"
  $resourceGroups | Select-Object ResourceGroupName, Location
}

This script sets the current Azure context to each subscription, gets a list of all resource groups using the `Get-AzResourceGroup` cmdlet, and then displays the resource group names and locations.

Handling Errors and Exceptions

When running scripts in multiple subscriptions, it’s essential to handle errors and exceptions gracefully. You can use try-catch blocks to catch and handle errors:

foreach ($subscription in $subscriptions) {
  try {
    Set-AzContext -SubscriptionId $subscription
    # Your PowerShell script here
    Write-Host "Running script in subscription $($subscription)"
  } catch {
    Write-Host "Error running script in subscription $($subscription): $($Error[0].Message)"
  }
}

This script catches any errors that occur while running the script in each subscription and displays an error message with the subscription ID and error details.

Best Practices and Tips

Here are some best practices and tips to keep in mind when running PowerShell scripts in all Azure subscriptions:

• Use the `-WhatIf` parameter to test your script before running it in production.
• Use `-Verbose` to enable verbose output and diagnose issues.
• Handle errors and exceptions using try-catch blocks.
• Use the `Get-AzSubscription` cmdlet to retrieve the subscription ID and name.
• Use the `Set-AzContext` cmdlet to set the current Azure context to the specified subscription ID.
• Store subscription IDs in a variable or configuration file for easy management.

Conclusion

In this comprehensive guide, we’ve covered the steps to run PowerShell scripts in all Azure subscriptions. By following these instructions and tips, you’ll be able to automate tasks, manage resources, and streamline your Azure administration tasks with ease. Remember to handle errors and exceptions, and use best practices to ensure your scripts run efficiently and effectively.

Cmdlet	Description
Import-Module Az	Imports the Az PowerShell module
Connect-AzAccount	Authenticates with Azure using the Az module
Get-AzSubscription	Retrieves a list of all Azure subscriptions
Set-AzContext	Sets the current Azure context to the specified subscription ID
Get-AzResourceGroup	Retrieves a list of all Azure resource groups in the current subscription

By mastering the art of running PowerShell scripts in all Azure subscriptions, you’ll unlock the full potential of Azure automation and take your administration skills to the next level. Happy scripting!

Frequently Asked Question

Are you tired of running PowerShell scripts in each Azure subscription individually? Look no further! Here are some frequently asked questions and answers about running PowerShell scripts in all Azure subscriptions.