Book Image

Learn PowerShell Core 6.0

By : David das Neves, Jan-Hendrik Peters
Book Image

Learn PowerShell Core 6.0

By: David das Neves, Jan-Hendrik Peters

Overview of this book

Beginning with an overview of the different versions of PowerShell, Learn PowerShell Core 6.0 introduces you to VSCode and then dives into helping you understand the basic techniques in PowerShell scripting. You will cover advanced coding techniques, learn how to write reusable code as well as store and load data with PowerShell. This book will help you understand PowerShell security and Just Enough Administration, enabling you to create your own PowerShell repository. The last set of chapters will guide you in setting up, configuring, and working with Release Pipelines in VSCode and VSTS, and help you understand PowerShell DSC. In addition to this, you will learn how to use PowerShell with Windows, Azure, Microsoft Online Services, SCCM, and SQL Server. The final chapter will provide you with some use cases and pro tips. By the end of this book, you will be able to create professional reusable code using security insight and knowledge of working with PowerShell Core 6.0 and its most important capabilities.
Table of Contents (26 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Local Configuration Manager – LCM


The LCM is the agent of consistency that drives it all. It is the engine that enforces consistency and checks the system status periodically. With WMF 4.0, the LCM was triggered with a scheduled task, which allowed little control over it. Starting with WMF 5.0, the LCM is hosted in the WmiPrvSE process.

Note

Until DSC Core arrives, DSC on Linux hosts the LCM in the daemon OMI server. You can use CIM and WinRM remoting to interact with the LCM and push or pull configurations. For more information, see: https://github.com/Microsoft/PowerShell-DSC-for-Linux.

The LCM properties can be seen by executing Get-DscLocalConfigurationManager. The most important properties are as follows:

  • ConfigurationMode: The behavior of the agent.
    • ApplyAndMonitor: Apply a configuration once only  and monitor changes.
    • ApplyOnly: Apply a configuration once.
    • ApplyAndAutoCorrect: Continuously apply a configuration.
    • MonitorOnly: Do not apply a configuration; only monitor configuration drift...