The other day I needed to launch some one-off Fargate / ECS container tasks with PowerShell. The documentation covered most of what I needed but I could not find any examples on how to override environment variables sent to the container task.

I only needed to change one environment variable so creating a whole new task definition seemed overkill for this purpose. After some trial and error the below code helped me get the job done.

If this helped you out please let me know in the comments. Feedback will motivate me to share solutions on this site more often.