.net core - Migrate from appsettings.json to ARM

Question

Scenario I host my Net Core 3.1 WebApp Aplication on a Linux App Service Plan on Azure. I use some library which needs to have provided some settings object in appsettings.json like this:

"Container": {
  "Settings1": "val1",
  "Settings2": "val2"
}

How to provide those appsettings in ARM template? I have tried:

"appSettings": [
  {
    "name": "Container:Settings1",
    "value": "val1"
  },
  {
    "name": "Container:Settings2",
    "value": "val2"
  },

but : does not help me set those settings in way that is needed for those third party library

Answer 1

For reason that I use Linux Web App, it is needed to set appSettings with double underscore __ instead of colon :

"appSettings": [
  {
    "name": "Container__Settings1",
    "value": "val1"
  },
  {
    "name": "Container__Settings2",
    "value": "val2"
  },