Scale a Deployed App Service
Having deployed an App Service, you may wish to scale it up or down by adjusting its configuration.
By increasing the number and/or the specifications of the nodes, you can adjust the cost and performance of the App Service.
Select the App Service you want to configure from the list of App Services attached to your project.
Select the Settings tab.
Select Configuration from the menu list on the left of the screen.
From here you can adjust the number of nodes and the number of CPUs/amount of memory for each of those nodes.
There is no downtime associated with changing the configuration. The App Services will continue to run while the system is reconfigured.
For more details on deployment configurations, see Configure App Endpoints