subnet.json

{
    "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vmCount": {
            "defaultValue": 2,
            "type": "int"
        },
		"deployLBYesNo": {
			"defaultValue": "yes",
			"type": "string"
		},
        "LBexternalInternal": {
            "defaultValue": "external",
            "type": "string"
        },
        "vnetName": {
            "defaultValue": "myVnet",
            "type": "string"
        },
        "storageAccountName": {
            "defaultValue": "[concat('storage',uniqueString(resourceGroup().id))]",
            "type": "string"
        },
        "subnetName": {
            "defaultValue": "serverSubnet",
            "type": "string"
		},
        "adminUsername": {
            "defaultValue": "jose",
            "type": "string"
        },
        "adminPassword": {
            "defaultValue": "Microsoft123!",
            "type": "securestring"
        },
        "vmPrefix": {
            "defaultValue": "slb-test-",
            "type": "string"
        },
		"availabilitySetName": {
			"defaultValue": "myAvSet",
			"type": "string"
		},
		"slbName": {
			"defaultValue": "myLB",
			"type": "string"
		},
		"backendConfigName": {
			"defaultValue": "myBackendConfig",
			"type": "string"
		},
		"pipName": {
			"defaultValue": "myPublicIp",
			"type": "string"
		},
		"slbIpPrefix": {
            "defaultValue": "10.0.1",
            "type": "string"
        },
		"slbVipSuffix": {
            "defaultValue": "100",
            "type": "string"
        }
    },
 
    "variables": {
        "nicName": "[concat(parameters('vmPrefix'),'nic')]",
        "nsgName": "[concat(parameters('vmPrefix'),'nsg')]",
		"diskName": "[concat(parameters('vmPrefix'),'disk')]",
		"apiVersion": "2016-03-30",
		"deployLBTemplate": {
			"yes": "[uri(deployment().properties.templateLink.uri, 'slb.json')]",
			"no": "[uri(deployment().properties.templateLink.uri, 'nothing.json')]"
		},
		"LBTemplateURI": "[variables('deployLBTemplate')[parameters('deployLBYesNo')]]",
        "deployLBParametersHash": {
            "yes": {
                "externalInternal": {
                    "value": "[parameters('LBexternalInternal')]"
                },
                "vnetName": {
                    "value": "[parameters('vnetName')]"
                },
                "subnetName": {
                    "value": "[parameters('subnetName')]"
                },
                "slbName": {
                    "value": "[parameters('slbName')]"
                },
                "backendConfigName": {
                    "value": "[parameters('backendConfigName')]"
                },
                "ipPrefix": {
                    "value": "[parameters('slbIpPrefix')]"
                },
                "vipSuffix": {
                    "value": "[parameters('slbVipSuffix')]"
                },
                "pipName": {
                    "value": "[parameters('pipName')]"
                }
            },
            "no": {
            }
        },
        "deployLBParameters": "[variables('deployLBParametersHash')[parameters('deployLBYesNo')]]",
		"deployNicTemplate": {
			"yes": "[uri(deployment().properties.templateLink.uri, 'nic_nsg_slb.json')]",
			"no": "[uri(deployment().properties.templateLink.uri, 'nic_nsg.json')]"
		},
		"nicTemplateURI": "[variables('deployNicTemplate')[parameters('deployLBYesNo')]]"
	},

    "resources": [
		{
			"comments": "SLB requires availability set",
			"type": "Microsoft.Compute/availabilitySets",
			"name": "[parameters('availabilitySetName')]",
			"apiVersion": "[variables('apiVersion')]",
			"location": "[resourceGroup().location]"
		},
		{	
			"comments": "VMs created and linked to NICs and storage account",
            "type": "Microsoft.Compute/virtualMachines",
            "name": "[concat(parameters('vmPrefix'), copyIndex(1))]",
            "apiVersion": "[variables('apiVersion')]",
            "location": "[resourceGroup().location]",
            "properties": {
				"availabilitySet": {
					"id": "[resourceId('Microsoft.Compute/availabilitySets', parameters('availabilitySetName'))]"
				},
				"hardwareProfile": {
                    "vmSize": "Standard_A0"
                },
                "storageProfile": {
                    "imageReference": {
                        "publisher": "Canonical",
                        "offer": "UbuntuServer",
                        "sku": "16.04.0-LTS",
                        "version": "latest"
                    },
                    "osDisk": {
                        "name": "[concat(parameters('vmPrefix'), copyIndex(1))]",
                        "createOption": "FromImage",
                        "vhd": {
                            "uri": "[concat('https', '://', parameters('storageAccountName'), '.blob.core.windows.net', concat('/vhds/', parameters('vmPrefix'), copyIndex(1)), uniqueString(resourceGroup().id),'.vhd')]"
                        },
                        "caching": "ReadWrite"
                    },
                    "dataDisks": []
                },
                "osProfile": {
                    "computerName": "[concat(parameters('vmPrefix'),copyIndex(1))]",
                    "adminUsername": "[parameters('adminUsername')]",
                    "secrets": [],
                    "adminPassword": "[parameters('adminPassword')]",
                    "linuxConfiguration": {
                        "disablePasswordAuthentication": false
                    }
                },
                "networkProfile": {
                    "networkInterfaces": [
                        {
                            "id": "[resourceId('Microsoft.Network/networkInterfaces', concat(variables('nicName'),copyIndex(1)))]"
                        }
                    ]
                }
            },
            "resources": [],
            "dependsOn": [
                "[concat(variables('nicName'), 'Copy')]",
				"[parameters('availabilitySetName')]"
            ],
			"copy": {
				"name": "[concat(parameters('vmPrefix'), 'Copy')]",
				"count": "[parameters('vmCount')]"
			}
        },
		{
			"comments": "Create the internal or external loadbalancer",
            "name": "internalLB",
			"type": "Microsoft.Resources/deployments",
			"apiVersion": "2016-06-01",
			"properties": {
				"mode": "Incremental",
				"templateLink": {
					"uri": "[variables('LBTemplateUri')]",
					"contentVersion": "1.0.0.0"
				},
				"parameters":  "[variables('deployLBParameters')]"
			}
		},
		{
            "comments": "Create all NICs for the VMs",
			"name": "[concat(variables('nicName'), copyIndex(1))]",
			"type": "Microsoft.Resources/deployments",
			"apiVersion": "2016-06-01",
			"properties": {
				"mode": "Incremental",
				"templateLink": {
					"uri": "[variables('nicTemplateUri')]",
					"contentVersion": "1.0.0.0"
				},
				"parameters":  {
                    "nsgName": { "value": "[concat(variables('nsgName'), copyIndex(1))]" },
                    "nicName": { "value": "[concat(variables('nicName'), copyIndex(1))]" },
                    "vnetName": { "value": "[parameters('vnetName')]" },
                    "subnetName": { "value": "[parameters('subnetName')]"},
                    "slbName": { "value": "[parameters('slbName')]" },
                    "backendConfigName": { "value": "[parameters('backendConfigName')]"}
                }
			},
            "dependsOn": [
				"[parameters('availabilitySetName')]"
            ],
			"copy": {
				"name": "[concat(variables('nicName'), 'Copy')]",
				"count": "[parameters('vmCount')]"
			}
        }
    ]
}