Azure Auto Scale set - Ubuntu - updates

I'm slowly dying over the complexity of Azure Auto Scaling Sets, and i think it might just be lack of knowledge.

Is it really neccesary for me, each time i want to make changes to etc. nginx configurations, or pull a git repository to:

1. Spin up an existing image
2. Make changes to that image
3. Degenerate the VM and create a new image
4. Use PowerShell or RestAPI to provision the Auto Scale Set with the new image
5. Hope for success or repeat

Is there no way for me to simply SSH onto my main instance, make the changes, and apply for a provisioning ?

Issent there any easier way to actually setup and manage my infrastructure behind the auto-scaling? Or is it neccesary to spend an additional 30-40 minutes, for a 2 minutes config change?

Thanks in advance

Is it really neccesary for me, each time i want to make changes

Yes, as we know, Azure VMSS auto scale up will create new instance with that image, so we can't make changes in instances, we should make change in image.

Is there no way for me to simply SSH onto my main instance, make the changes, and apply for a provisioning ?

For now, Azure only support make changes in image.

is it neccesary to spend an additional 30-40 minutes, for a 2 minutes config change?

Maybe we can give your feedback here, all of the feedback you share in this link will be monitored and reviewed by the Microsoft engineering teams.