dev->prod e2e investigation

[puicchan]

e2e using JeffreyCA/azd-dev-prod:

• Basic Layered provision/GH Action
• scale unit/GH Action
• Azure DevOps - Basic layered provision
• ACA - Blue/green scenario
• IaC in separate repo - can we leverage remote env? how does it look like if private registry?

[weikanglim]

blue-green will be supported natively from ACA with #5694

IaC in separate repo -- we can work through and document this

[puicchan]

Closing this. Only outstanding is IaC in separate repo