eShopOnContainers/src/Services/Catalog/Catalog.API/appsettings.Development.json

{
  "Serilog": {
    "MinimumLevel": {
      "Default": "Debug",
      "Override": {
        "Microsoft": "Warning",
        "Microsoft.eShopOnContainers": "Debug",
        "System": "Warning"
      }
    }
  }
}