Azure app service slot different value app setting - azure

Question

I have a webapp with a slot. Both should have the app setting name DISABLE_CRON. The webapp (production slot) should have this setting set to false and the slot should have the setting set to true. I would like to do this with ARM-template. The webapp have many appsettings such as database name, database login username and password etc. I want all of those settings to be in a variable so I don't have to write them one time for the webapp and one time for the slot. Basically I just want to change the value to true on the slot and keep all other settings the same.
"variables": {
"appName": "[concat(parameters('applicationName'),'-',parameters('environment'),'-app')]",
"hostingPlanName": "[concat(parameters('applicationName'),'-',parameters('environment'),'-plan')]",
"dbserverName": "[concat('onlinecampaignsites-',parameters('environment'),'-dbs-01')]",
"connectionString": "[concat('Database=', parameters('applicationName'), ';Data Source=', concat('onlinecampaignsites-',parameters('environment'),'-dbs-01'),'.mysql.database.azure.com;User Id=',parameters('administratorLogin'),'#',concat('onlinecampaignsites-',parameters('environment'),'-dbs-01'),';Password=',parameters('administratorLoginPassword'))]",
"appInsightsName": "[concat(parameters('applicationName'),'-',parameters('environment'),'-appIn')]",
"databaseName": "[parameters('applicationName')]",
"storageName": "[concat(parameters('applicationName'),parameters('environment'),'stg')]",
"serverFarmResourceGroup": "[resourceGroup().name]",
"subscriptionId": "[subscription().subscriptionId]",
"containerName01": "[concat(parameters('applicationName'),'-',parameters('environment'),'-uploads')]",
"staging": "staging",
"appsettings": {
"DISABLE_CRON": "false",
"HEJSAN": "Den vann den"
}
},
"resources": [
{
"name": "[variables('appname')]",
"type": "Microsoft.Web/sites",
"location": "[resourceGroup().location]",
"apiVersion": "2018-02-01",
"dependsOn": [
"[concat('Microsoft.Web/serverfarms/', variables('hostingPlanName'))]"
],
"properties": {
"siteConfig": {
"appSettings": [
{
"name": "DISABLE_CRON",
"value": "true"
}
]
},
"hostNameSslStates":"[concat('{\"name\": \"',parameters('customDomain'),'\", \"sslState\": \"Disabled\", \"virtualIP\": null, \"thumbprint\": null, \"toUpdate\": null,\"hostType\": \"Standard\"}')]",
"serverFarmId": "[concat('/subscriptions/', variables('subscriptionId'),'/resourcegroups/', variables('serverFarmResourceGroup'), '/providers/Microsoft.Web/serverfarms/', variables('hostingPlanName'))]",
"hostingEnvironment": "",
"httpsOnly": true
},
"resources": [
{
"apiVersion": "2018-02-01",
"name": "slotconfignames",
"type": "config",
"dependsOn": [
"[concat('Microsoft.Web/sites/', variables('appName'))]"
],
"properties": {
"appSettingNames": [ "DISABLE_CRON" ]
}
},
{
"apiVersion": "2018-02-01",
"type": "config",
"name": "appsettings",
"dependsOn": [
"[concat('Microsoft.Web/sites/', variables('appName'))]"
],
"properties": "[variables('appsettings')]"
}
]
},
{
"apiVersion": "2018-02-01",
"type": "Microsoft.Web/sites/slots",
"name": "[concat(variables('appName'), '/', variables('staging'))]",
"location": "[resourceGroup().location]",
"dependsOn": [
"[resourceId('Microsoft.Web/Sites', variables('appName'))]",
"[concat('Microsoft.Web/serverfarms/', variables('hostingPlanName'))]"
],
"properties": {},
"resources": [
{
"apiVersion": "2018-02-01",
"type": "config",
"name": "appsettings",
"dependsOn": [
"[resourceId('Microsoft.Web/sites/slots', variables('appName'), variables('staging'))]"
],
"properties": "[variables('appsettings')]"
}
]
},
In the ARM-template example there are two appsettings. It does not work to set the DISABLE_CRON to true, I just wanted to show that with this example.