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Internal central repositories for PowerShell modules

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Article from ADMIN 89/2025

By Philip Lorenz

Optimize the way you organize and maintain scripts by bundling PowerShell modules and deploying them internally.

PowerShell has established itself as an indispensable tool for admins. Best practices for creating efficient and reusable code dictate abstracting the code to create functions that can then be bundled into modules for logical organization and to make them easily accessible to all users. Modules do not just facilitate code reuse, they also help you keep track of complex scripts, while ensuring that the code remains well structured and maintainable. The question quickly arises as to how best to store these modules and make them accessible.

Private Repository Security

The PowerShell Gallery, a public repository, provides a platform where anyone can share their modules, with the advantage of making modules available to a broad community of developers. Of course, business organizations will typically want to avoid making their own modules available to the public for various reasons (e.g., security, sensitive information, company policy). Another aspect is the protection of intellectual property; companies often do not want their proprietary content to be publicly accessible.

One proven solution in this area is to set up your own internal repository to store proprietary modules securely and make them accessible to authorized employees only and to be centrally managed, updated, and distributed in a controlled manner.

In this article, I look at the options for bundling proprietary PowerShell functions as modules and making them available to employees in a central module repository. I also explain how to create and maintain such a repository and how to integrate it into your IT department's workflow. I will look at the various steps required to set up an internal repository, including selecting the appropriate infrastructure, configuring access controls, and ensuring continuous maintenance of the repository.