Automation: plan for day-to-day operations
A useful script should be understandable, testable and easy for its support team to take over.
Choose a clear process
Automation is useful when the starting process is clear. If inputs, exceptions and expected results are unclear, a script may simply repeat that confusion faster.
Start by describing the manual steps, identifying repetition and finding the decisions that still need a person.
Define the expected result
Describe what the script should produce and how to recognise a correct run. A completion message does not replace checking the result.
Incorrect inputs and incomplete situations are part of daily operations. Planning for them makes errors easier for the support team to understand.
Prepare for support
An automated process runs in an environment that changes. Its documentation should explain its purpose, dependencies, how to run it and how to check its output.
Version control helps track changes. Tests suited to the task make it possible to compare expected and observed behaviour.
Share how it works
In my work, PowerShell has helped automate Active Directory administration and infrastructure tasks. Writing the script and helping the team use it are two parts of the same job.
The aim is a more consistent, understandable process, with known limits and clear responsibilities.
- PowerShell
- DevOps