vmss_elb.json

{
	"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
	"contentVersion": "1.0.0.0",
	"parameters": {
		"vmSku": {
			"type": "string",
			"defaultValue": "Standard_F2",
			"metadata": {
				"description": "Size of VMs in the VM Scale Set."
			}
		},
		"vmssName": {
			"type": "string",
			"metadata": {
				"description": "The name of the VM Scale Set."
			},
			"maxLength": 61
		},
		"instanceCount": {
			"type": "int",
			"metadata": {
				"description": "Initial number of VM instances (100 or less)."
			},
			"defaultValue": 2,
			"maxValue": 100
		},
		"adminUsername": {
			"type": "string",
			"metadata": {
				"description": "Admin username on all VMs."
			}
		},
		"adminPassword": {
			"type": "securestring",
			"metadata": {
				"description": "Admin password on all VMs."
			}
		},
		"upgradePolicy": {
			"type": "string",
			"defaultValue": "Manual",
			"allowedValues": [
				"Manual",
				"Automatic"
			],
			"metadata": {
				"description": "The upgrade policy for the VM Scale Set, either Manual of Automatic."
			}
		},
		"existingVirtualNetworkResourceGroup": {
			"type": "string",
			"metadata": {
				"description": "The name of the Resource Group which contains the existing Virtual Network that this VM Scale Set will be connected to."
			}
		},
		"existingVirtualNetworkName": {
			"type": "string",
			"metadata": {
				"description": "The name of the existing Virtual Network that this VM Scale Set will be connected to."
			}
		},
		"existingVirtualNetworkSubnet": {
			"type": "string",
			"metadata": {
				"description": "The name of the existing subnet that this VM Scale Set will be connected to."
			}
		},
		"existingManagedImageResourceGroup": {
			"type": "string",
			"metadata": {
				"description": "The name of the Resource Group containing the Image that instances of the VM Scale Set will be created from. Images can be created by capturing Azure VMs."
			}
		},
		"existingManagedImageName": {
			"type": "string",
			"metadata": {
				"description": "The name of the Image that instances of the VM Scale Set will be created from. Images can be created by capturing Azure VMs."
			}
		}
	},
	"variables": {
		"vmssName": "[toLower(substring(parameters('vmssName'), 0, 9))]",
		"vnetId": "[resourceId(parameters('existingVirtualNetworkResourceGroup'), 'Microsoft.Network/virtualNetworks', parameters('existingVirtualNetworkName'))]",
		"subnetId": "[concat(variables('vnetId'), '/subnets/', parameters('existingVirtualNetworkSubnet'))]",
		"lbName": "[concat(variables('vmssName'), 'lb')]",
		"bepoolName": "[concat(variables('lbName'), 'bepool')]",
		"fepoolName": "[concat(variables('lbName'), 'fepool')]",
		"lbID": "[resourceId('Microsoft.Network/loadBalancers',variables('lbName'))]",
		"bepoolID": "[concat(variables('lbID'),'/backendAddressPools/', variables('bepoolName'))]",
		"feIpConfigName": "[concat(variables('fepoolName'), 'IpConfig')]",
		"feIpConfigId": "[concat(variables('lbID'),'/frontendIPConfigurations/', variables('feIpConfigName'))]",
		"pipName": "[concat(variables('vmssName'), 'pip')]",
		"natPoolName": "[concat(variables('lbName'), 'natpool')]",
		"httpProbeName": "httpProbe",
		"httpsProbeName": "httpsProbe",
		"managedImageId": "[resourceId(parameters('existingManagedImageResourceGroup'), 'Microsoft.Compute/images', parameters('existingManagedImageName'))]"
	},
	"resources": [{
			"type": "Microsoft.Compute/virtualMachineScaleSets",
			"name": "[variables('vmssName')]",
			"location": "[resourceGroup().location]",
			"apiVersion": "2016-04-30-preview",
			"sku": {
				"name": "[parameters('vmSku')]",
				"tier": "Standard",
				"capacity": "[parameters('instanceCount')]"
			},
			"properties": {
				"upgradePolicy": {
					"mode": "[parameters('upgradePolicy')]"
				},
				"virtualMachineProfile": {
					"storageProfile": {
						"imageReference": {
							"id": "[variables('managedImageId')]"
						}
					},
					"osProfile": {
						"computerNamePrefix": "[variables('vmssName')]",
						"adminUsername": "[parameters('adminUsername')]",
						"adminPassword": "[parameters('adminPassword')]"
					},
					"networkProfile": {
						"networkInterfaceConfigurations": [{
							"name": "nic",
							"properties": {
								"primary": true,
								"ipConfigurations": [{
									"name": "ipconfig",
									"properties": {
										"subnet": {
											"id": "[variables('subnetId')]"
										},
										"loadBalancerBackendAddressPools": [{
											"id": "[concat('/subscriptions/', subscription().subscriptionId,'/resourceGroups/', resourceGroup().name, '/providers/Microsoft.Network/loadBalancers/', variables('lbName'), '/backendAddressPools/', variables('bePoolName'))]"
										}],
										"loadBalancerInboundNatPools": [{
											"id": "[concat('/subscriptions/', subscription().subscriptionId,'/resourceGroups/', resourceGroup().name, '/providers/Microsoft.Network/loadBalancers/', variables('lbName'), '/inboundNatPools/', variables('natPoolName'))]"
										}]
									}
								}]
							}
						}]
					}
				}
			}
		},
        {
			"type": "Microsoft.Network/publicIPAddresses",
			"name": "[variables('pipName')]",
			"apiVersion": "2016-03-30",
			"location": "[resourceGroup().location]",
			"properties": {
				"publicIPAllocationMethod": "Dynamic",
				"dnsSettings": {
					"domainNameLabel": "[variables('vmssName')]"
				}
			}
		},
		{
			"type": "Microsoft.Network/loadBalancers",
			"name": "[variables('lbName')]",
			"apiVersion": "2016-03-30",
			"location": "[resourceGroup().location]",
			"tags": {
				"displayName": "Load Balancer"
			},
			"properties": {
				"frontendIPConfigurations": [{
					"name": "[variables('feIpConfigName')]",
					"properties": {
						"publicIPAddress": {
							"id": "[resourceId('Microsoft.Network/publicIPAddresses', variables('pipName'))]"
						}
					}
				}],
				"backendAddressPools": [{
					"name": "[variables('bepoolName')]"
				}],
				"inboundNatPools": [{
					"name": "[variables('natPoolName')]",
					"properties": {
						"frontendIPConfiguration": {
							"id": "[variables('feIpConfigId')]"
						},
						"protocol": "tcp",
						"frontendPortRangeStart": 10022,
						"frontendPortRangeEnd": 11022,
						"backendPort": 22
					}
				}],
				"loadBalancingRules": [{
						"name": "HTTPRule",
						"properties": {
							"loadDistribution": "Default",
							"frontendIPConfiguration": {
								"id": "[variables('feIpConfigId')]"
							},
							"backendAddressPool": {
								"id": "[variables('bepoolID')]"
							},
							"protocol": "Tcp",
							"frontendPort": 80,
							"backendPort": 80,
							"enableFloatingIP": false,
							"idleTimeoutInMinutes": 5,
							"probe": {
								"id": "[concat(variables('lbId'), '/probes/', variables('httpProbeName'))]"
							}
						}
					},
					{
						"name": "HTTPSRule",
						"properties": {
							"loadDistribution": "Default",
							"frontendIPConfiguration": {
								"id": "[variables('feIpConfigId')]"
							},
							"backendAddressPool": {
								"id": "[variables('bepoolId')]"
							},
							"protocol": "Tcp",
							"frontendPort": 443,
							"backendPort": 443,
							"enableFloatingIP": false,
							"idleTimeoutInMinutes": 5,
							"probe": {
								"id": "[concat(resourceId('Microsoft.Network/loadBalancers', variables('lbName')), '/probes/', variables('httpsProbeName'))]"
							}
						}
					}
				],
				"probes": [{
						"name": "[variables('httpProbeName')]",
						"properties": {
							"protocol": "Tcp",
							"port": 80,
							"intervalInSeconds": 5,
							"numberOfProbes": 2
						}
					},
					{
						"name": "[variables('httpsProbeName')]",
						"properties": {
							"protocol": "Tcp",
							"port": 443,
							"intervalInSeconds": 5,
							"numberOfProbes": 2
						}
					}
				]
			},
			"dependsOn": [
				"[concat('Microsoft.Network/publicIPAddresses/', variables('pipName'))]"
			]
		},
		{
			"type": "Microsoft.Insights/autoscaleSettings",
			"name": "autoscalesettings",
			"apiVersion": "2015-04-01",
			"location": "[resourceGroup().location]",
			"properties": {
				"name": "autoscalesettings",
				"targetResourceUri": "[concat('/subscriptions/',subscription().subscriptionId, '/resourceGroups/',  resourceGroup().name, '/providers/Microsoft.Compute/virtualMachineScaleSets/', variables('vmssName'))]",
				"enabled": true,
				"profiles": [{
					"name": "Profile1",
					"capacity": {
						"minimum": "2",
						"maximum": "20",
						"default": "[parameters('capacity')]"
					},
					"rules": [{
							"metricTrigger": {
								"metricName": "Percentage CPU",
								"metricNamespace": "",
								"metricResourceUri": "[concat('/subscriptions/',subscription().subscriptionId, '/resourceGroups/',  resourceGroup().name, '/providers/Microsoft.Compute/virtualMachineScaleSets/', variables('vmssuniqueName'))]",
								"timeGrain": "PT1M",
								"statistic": "Average",
								"timeWindow": "PT5M",
								"timeAggregation": "Average",
								"operator": "GreaterThan",
								"threshold": 40
							},
							"scaleAction": {
								"direction": "Increase",
								"type": "ChangeCount",
								"value": "1",
								"cooldown": "PT1M"
							}
						},
						{
							"metricTrigger": {
								"metricName": "Percentage CPU",
								"metricNamespace": "",
								"metricResourceUri": "[concat('/subscriptions/',subscription().subscriptionId, '/resourceGroups/',  resourceGroup().name, '/providers/Microsoft.Compute/virtualMachineScaleSets/',variables('vmssName'))]",
								"timeGrain": "PT1M",
								"statistic": "Average",
								"timeWindow": "PT5M",
								"timeAggregation": "Average",
								"operator": "LessThan",
								"threshold": 30
							},
							"scaleAction": {
								"direction": "Decrease",
								"type": "ChangeCount",
								"value": "1",
								"cooldown": "PT5M"
							}
						}
					]
				}]
			},
			"dependsOn": [
				"[concat('Microsoft.Compute/virtualMachineScaleSets/', variables('vmssName'))]"
			]
		}
	],
	"outputs": {
		"fqdn": {
			"type": "String",
			"value": "[reference(resourceId('Microsoft.Network/publicIPAddresses',variables('pipName')),'2016-03-30').dnsSettings.fqdn]"
		}
	}
}