Deployment slots

What is Deployment slot?

Slots are different environments exposed via a publicly available endpoint
Deployment slots are live apps with their own host names
You can validate app changes in a staging deployment slot before swapping it with the production slot
One app instance is always mapped to the production slot, and you can swap instances assigned to a slot on demand
Each deployment slot is like a full-fledged App Service instance
Deployment slots have a different URL than the original App Service
Details:
- https://docs.microsoft.com/en-us/azure/app-service/deploy-staging-slots
- https://stackify.com/azure-deployment-slots/