101-multiple-vnets-vms.json

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vNetCount": {
            "type": "int",
            "defaultValue": 10,
            "metadata": {
                "description": "total number of VNets"
            }
        },
        "azureRegion":{
            "type": "array",
            "defaultValue":[
                "northeurope",
                "westeurope",
                "eastus",
                "eastus2",
                "eastus2",
                "northeurope",
                "centralus" 
            ]
        },
        "adminUsername": 
        {   "type": "string",
            "defaultValue":"SET_HERE_ADMINISTRATOR_USERNAME",
            "metadata": {
                "description": "admin username"
            }
        },
        "adminPassword": 
        {   "type": "securestring",
            "defaultValue":"SET_HERE_ADMINISTRATOR_PASSWORD",
            "metadata": {
                "description": "admin password"
            }
        },
        "vmSize": {
            "type": "string",
            "defaultValue": "Standard_B1s",
            "metadata": {
                "description": "VM size"
            }
        },
        "imagePublisher":{
            "type": "string",
            "defaultValue": "openlogic"         
        } ,
        "imageOffer":{
            "type": "string",
            "defaultValue": "CentOS"
        } ,
        "OSVersion":{
            "type": "string",
            "defaultValue": "7.4"
        }
    },
    "variables": {
//        "azureRegion": [
//            "northeurope",
//            "westeurope",
//            "eastus",
//            "eastus2",
//            "eastus2",
//            "northeurope",
//            "centralus"
//        ],
        "azureRegionCount": "[length(parameters('azureRegion'))]",
        "imagePublisher": "[parameters('imagePublisher')]",
        "imageOffer": "[parameters('imageOffer')]",
        "OSVersion": "[parameters('OSVersion')]",
        "vmSize" :"[parameters('vmSize')]",
        "adminUsername":"[parameters('adminUsername')]",
        "adminPassword":"[parameters('adminPassword')]",
        "vNetCount": "[parameters('vNetCount')]"
    },
    "resources": [
        {
            "apiVersion": "2018-01-01",
            "type": "Microsoft.Network/virtualNetworks",
            "name": "[concat('vnet-', padLeft(copyindex(), 2, '0') )]",
            "location": "[parameters('azureRegion')[ mod(copyindex(), variables('azureRegionCount') )] ]",
            "dependsOn": [],
            "comments": "create VNets in different location. The loop use the array azureRegion to assign the region.",
            "properties": {
                "addressSpace": {
                    "addressPrefixes": [
                        "[concat('10.0.',copyIndex(),'.0/24')]"
                    ]
                },
                "subnets": [
                    {
                        "name": "subnet1",
                        "properties": {
                            "addressPrefix": "[concat('10.0.',copyIndex(),'.0/25')]"
                        }
                    },
                    {
                        "name": "GatewaySubnet",
                        "properties": {
                            "addressPrefix": "[concat('10.0.',copyIndex(),'.224/27')]"
                        }
                    }
                ]
            },
            "copy": {
                "name": "vnetCopy",
                "count": "[variables('vNetCount')]"
            }
        },
        // Public IP addresses VMs
        {
            "apiVersion": "2016-03-30",
            "type": "Microsoft.Network/publicIPAddresses",
            "name": "[concat('vm-', padLeft(copyindex(), 2, '0'),'-pubIP' )]",
            "location": "[parameters('azureRegion')[ mod(copyindex(), variables('azureRegionCount') )] ]",  
            "properties": {
                "publicIPAllocationMethod": "Dynamic"
            },
            "copy": {
                "name": "publicIpCopy",
                "count": "[variables('vNetCount')]"
            }
        },
        {
            "apiVersion": "2016-03-30",
            "type": "Microsoft.Network/networkInterfaces",
            "name": "[concat('vm-', padLeft(copyindex(), 2, '0'),'-NIC' )]",
            "location": "[parameters('azureRegion')[ mod(copyindex(), variables('azureRegionCount') )] ]",  
            "dependsOn": [
                "[resourceId('Microsoft.Network/publicIPAddresses/', concat('vm-', padLeft(copyindex(), 2, '0'),'-pubIP' ) )]",
                "[resourceId('Microsoft.Network/virtualNetworks',  concat('vnet-', padLeft(copyindex(), 2, '0'))  )]"
            ],
            "properties": {
                "ipConfigurations": [
                    {
                        "name": "ipconfig1",
                        "properties": {
                            "privateIPAllocationMethod": "Static",
                            "privateIPAddress": "[concat('10.0.',copyIndex(),'.10')]",
                            "publicIPAddress": {
                                "id": "[resourceId('Microsoft.Network/publicIPAddresses',concat('vm-', padLeft(copyindex(), 2, '0'),'-pubIP' )  )]"
                            },
                            "subnet": {
                                "id": "[resourceId('Microsoft.Network/virtualNetworks/subnets',concat('vnet-', padLeft(copyindex(), 2, '0') ), 'subnet1')]"
                            }
                        }
                    }
                ],
                "enableIPForwarding": false
            },
            "copy": {
                "name": "nicCopy",
                "count": "[variables('vNetCount')]"
            }
        },
        {
            "apiVersion": "2017-03-30",
            "type": "Microsoft.Compute/virtualMachines",
            "name": "[concat('vm-', padLeft(copyindex(), 2, '0') )]",
            "location": "[parameters('azureRegion')[ mod(copyindex(), variables('azureRegionCount') )] ]",
            "dependsOn": [
                "[resourceId('Microsoft.Network/networkInterfaces', concat('vm-', padLeft(copyindex(), 2, '0'),'-NIC' )  )]"
            ],
            "properties": {
                "hardwareProfile": {
                    "vmSize": "[variables('vmSize')]"
                },
                "osProfile": {
                    "computerName": "[concat('vm-', padLeft(copyindex(), 2, '0') )]",
                    "adminUsername": "[variables('adminUsername')]",
                    "adminPassword": "[variables('adminPassword')]"
                },
                "storageProfile": {
                    "imageReference": {
                        "publisher": "[variables('imagePublisher')]",
                        "offer": "[variables('imageOffer')]",
                        "sku": "[variables('OSVersion')]",
                        "version": "latest"
                    },
                    "osDisk": {
                        "createOption": "FromImage"
                    }
                },
                "networkProfile": {
                    "networkInterfaces": [
                        {
                            "id": "[resourceId('Microsoft.Network/networkInterfaces', concat('vm-', padLeft(copyindex(), 2, '0'),'-NIC' )  )]"
                        }
                    ]
                }
            },
            "copy": {
                "name": "nodeCopy",
                "count": "[variables('vNetCount')]"
            }
        }
    ]
}