ex-service1.two.xyz.json

{
 "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentParameters.json#",
 "contentVersion": "1.0.0.0",
 "parameters": {
  "key1": {
   "value": "value1default"
  },
  "key2": {
   "value": "value2default"
  },
  "region": {
   "value": "xyz"
  },
  "key4": {
   "value": "value4two"
  }
 }
}