nested-inner-and-outer-scopes.json

{
    // from https://docs.microsoft.com/en-us/azure/azure-resource-manager/templates/cross-resource-group-deployment?tabs=azure-powershell
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
    },
    "variables": {
    },
    "resources": [
        {
            "type": "Microsoft.Resources/deployments",
            "apiVersion": "2017-05-10",
            "name": "defaultScopeTemplate",
            "resourceGroup": "inlineGroup",
            "properties": {
                "mode": "Incremental",
                "template": {
                    "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
                    "contentVersion": "1.0.0.0",
                    "parameters": {
                    },
                    "variables": {
                    },
                    "resources": [
                    ],
                    "outputs": {
                        "resourceGroupOutput": {
                            "type": "string",
                            "value": "[resourceGroup().name]"
                        }
                    }
                },
                "parameters": {
                }
            }
        },
        {
            "type": "Microsoft.Resources/deployments",
            "apiVersion": "2017-05-10",
            "name": "innerScopeTemplate",
            "resourceGroup": "inlineGroup",
            "properties": {
                "expressionEvaluationOptions": {
                    "scope": "inner"
                },
                "mode": "Incremental",
                "template": {
                    "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
                    "contentVersion": "1.0.0.0",
                    "parameters": {
                    },
                    "variables": {
                    },
                    "resources": [
                    ],
                    "outputs": {
                        "resourceGroupOutput": {
                            "type": "string",
                            "value": "[resourceGroup().name]"
                        }
                    }
                },
                "parameters": {
                }
            }
        },
        {
            "type": "Microsoft.Resources/deployments",
            "apiVersion": "2017-05-10",
            "name": "linkedTemplate",
            "resourceGroup": "linkedGroup",
            "properties": {
                "mode": "Incremental",
                "templateLink": {
                    "contentVersion": "1.0.0.0",
                    "uri": "https://raw.githubusercontent.com/Azure/azure-docs-json-samples/master/azure-resource-manager/resourceGroupName.json"
                },
                "parameters": {
                }
            }
        }
    ],
    "outputs": {
        "parentRG": {
            "type": "string",
            // "value": "Parent resource group is deleteme"
            "value": "[concat('Parent resource group is ', resourceGroup().name)]"
        },
        "defaultScopeRG": {
            "type": "string",
            // "value": "Default scope resource group is deleteme"
            "value": "[concat('Default scope resource group is ', reference('defaultScopeTemplate').outputs.resourceGroupOutput.value)]"
        },
        "innerScopeRG": {
            "type": "string",
            // "value": "Inner scope resource group is inlineGroup"
            "value": "[concat('Inner scope resource group is ', reference('innerScopeTemplate').outputs.resourceGroupOutput.value)]"
        },
        "linkedRG": {
            "type": "string",
            // "value": "Linked resource group is linkedGroup"
            "value": "[concat('Linked resource group is ', reference('linkedTemplate').outputs.resourceGroupOutput.value)]"
        }
    }
}