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Overview of the Az.Tools.Migration PowerShell module

The Az.Tools.Migration PowerShell module facilitates the transition from the older AzureRM module to the newer Az module, which is recommended for Azure management.

Important

The AzureRM PowerShell module is deprecated as of February 29, 2024.

Microsoft introduced Az.Tools.Migration in response to customer feedback, particularly concerning the effort required to update scripts that were originally written for AzureRM. Recognizing that many customers have invested in creating complex scripts for Azure environments, Az.Tools.Migration was created to streamline and automate the migration process, thus reducing the manual workload and potential for error during script upgrades.

How to use the Az.Tools.Migration module

The process of using Az.Tools.Migration involves several steps:

  1. Updating to AzureRM version 6.13.1: Before using Az.Tools.Migration, users must ensure their scripts are updated to AzureRM version 6.13.1, the last version before the migration to the Az module.

  2. Installing Az.Tools.Migration: The module can be installed from the PowerShell Gallery with the Install-Module -Name Az.Tools.Migration command.

  3. Generating an Upgrade Plan: The New-AzUpgradeModulePlan cmdlet generates an upgrade plan. It does not change existing scripts but provides an upgrade path by creating a plan detailing specific files and offset points requiring updates. This cmdlet takes parameters such as FilePath and DirectoryPath to target specific scripts or folders.

  4. Reviewing the Upgrade Plan: Before executing the upgrade, it is crucial to review the plan for any potential issues that may prevent automatic upgrades, such as commands that use splatting, and correct them manually if necessary.

  5. Performing the Upgrade: After reviewing and resolving any issues, the actual upgrade is performed using the Invoke-AzUpgradeModulePlan cmdlet. This cmdlet can either modify existing files or, more safely, save changes to new files with _az_upgraded appended to their names to preserve the original scripts.

To ensure a smooth migration, it’s recommended to back up scripts before performing upgrades since the Invoke-AzUpgradeModulePlan cmdlet can be destructive if not used with the -FileEditMode SaveChangesToNewFiles option.

Users are encouraged to provide feedback or report issues with the migration process on the GitHub repository for azure-powershell-migration.