{
  "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "vmSSName": {
      "defaultValue": "vmss",
      "type": "String",
      "metadata": {
        "description": "VMSS名"
      }
    },
    "instanceCount": {
      "defaultValue": 1,
      "type": "Int",
      "metadata": {
        "description": "初期インスタンス数"
      }
    },
    "vmSize": {
      "allowedValues": [
        "Standard_D1",
        "Standard_DS1",
        "Standard_D2",
        "Standard_DS2",
        "Standard_D3",
        "Standard_DS3",
        "Standard_D4",
        "Standard_DS4",
        "Standard_D11",
        "Standard_DS11",
        "Standard_D12",
        "Standard_DS12",
        "Standard_D13",
        "Standard_DS13",
        "Standard_D14",
        "Standard_DS14"
      ],
      "type": "String",
      "metadata": {
        "description": "インスタンスサイズ"
      }
    },
    "adminUsername": {
      "defaultValue": "azureuser",
      "type": "String",
      "metadata": {
        "description": "各VMインスタンスの初期ユーザアカウント名"
      }
    },
    "adminPassword": {
      "type": "SecureString",
      "metadata": {
        "description": "各VMインスタンスの初期パスワード"
      }
    },
    "sourceImageName": {
      "defaultValue": "myCustomImage",
      "type": "String",
      "metadata": {
        "description": "作成元のイメージ名"
      }
    },
    "frontEndLBPort": {
      "defaultValue": 3389,
      "type": "Int",
      "metadata": {
        "description": "ロードバランサのフロントエンドポート"
      }
    },
    "backEndLBPort": {
      "defaultValue": 3389,
      "type": "Int",
      "metadata": {
        "description": "ロードバランサのバックエンドポート"
      }
    }
  },
  "variables": {
    "addressPrefix": "10.0.0.0/16",
    "subnetName": "Subnet",
    "subnetPrefix": "10.0.0.0/24",
    "virtualNetworkName": "vmssvnet",
    "vnetID": "[resourceId('Microsoft.Network/virtualNetworks',variables('virtualNetworkName'))]",
    "subnetRef": "[concat(variables('vnetID'),'/subnets/',variables('subnetName'))]",
    "publicIPAddressName": "[concat(parameters('vmSSName'),'publicip1')]",
    "publicIPAddressID": "[resourceId('Microsoft.Network/publicIPAddresses',variables('publicIPAddressName'))]",
    "nicName": "[concat(parameters('vmSSName'),'networkInterface1')]",
    "nicId": "[resourceId('Microsoft.Network/networkInterfaces',variables('nicName'))]",
    "lbName": "[concat(parameters('vmSSName'),'loadbalancer')]",
    "lbID": "[resourceId('Microsoft.Network/loadBalancers',variables('lbName'))]",
    "lbFEName": "loadBalancerFrontEnd",
    "lbWebProbeName": "loadBalancerWebProbe",
    "lbBEAddressPool": "loadBalancerBEAddressPool",
    "lbFEIPConfigID": "[concat(variables('lbID'),'/frontendIPConfigurations/',variables('lbFEName'))]",
    "lbBEAddressPoolID": "[concat(variables('lbID'),'/backendAddressPools/',variables('lbBEAddressPool'))]",
    "lbWebProbeID": "[concat(variables('lbID'),'/probes/',variables('lbWebProbeName'))]",
    "networkApi": "2016-03-30",
    "computeApiVersion": "2017-03-30",
    "networkApiVersion": "2017-04-01"
  },
  "resources": [
    {
      "type": "Microsoft.Network/virtualNetworks",
      "name": "[variables('virtualNetworkName')]",
      "apiVersion": "[variables('networkApiVersion')]",
      "location": "[resourceGroup().location]",
      "properties": {
        "addressSpace": {
          "addressPrefixes": [
            "[variables('addressPrefix')]"
          ]
        },
        "subnets": [
          {
            "name": "[variables('subnetName')]",
            "properties": {
              "addressPrefix": "[variables('subnetPrefix')]"
            }
          }
        ]
      }
    },
    {
      "type": "Microsoft.Network/publicIPAddresses",
      "name": "[variables('publicIPAddressName')]",
      "apiVersion": "[variables('networkApiVersion')]",
      "location": "[resourceGroup().location]",
      "properties": {
        "publicIPAllocationMethod": "Dynamic"
      }
    },
    {
      "type": "Microsoft.Network/loadBalancers",
      "name": "[variables('lbName')]",
      "apiVersion": "[variables('networkApiVersion')]",
      "location": "[resourceGroup().location]",
      "properties": {
        "frontendIPConfigurations": [
          {
            "name": "[variables('lbFEName')]",
            "properties": {
              "publicIPAddress": {
                "id": "[variables('publicIPAddressID')]"
              }
            }
          }
        ],
        "backendAddressPools": [
          {
            "name": "[variables('lbBEAddressPool')]"
          }
        ],
        "loadBalancingRules": [
          {
            "name": "weblb",
            "properties": {
              "frontendIPConfiguration": {
                "id": "[variables('lbFEIPConfigID')]"
              },
              "backendAddressPool": {
                "id": "[variables('lbBEAddressPoolID')]"
              },
              "probe": {
                "id": "[variables('lbWebProbeID')]"
              },
              "protocol": "tcp",
              "frontendPort": "[parameters('frontEndLBPort')]",
              "backendPort": "[parameters('backEndLBPort')]",
              "enableFloatingIP": false
            }
          }
        ],
        "probes": [
          {
            "name": "[variables('lbWebProbeName')]",
            "properties": {
              "protocol": "tcp",
              "port": "[parameters('backEndLBPort')]",
              "intervalInSeconds": "15",
              "numberOfProbes": "5"
            }
          }
        ]
      },
      "dependsOn": [
        "[concat('Microsoft.Network/publicIPAddresses/',variables('publicIPAddressName'))]"
      ]
    },
    {
      "type": "Microsoft.Compute/virtualMachineScaleSets",
      "sku": {
        "name": "[parameters('vmSize')]",
        "tier": "Standard",
        "capacity": "[parameters('instanceCount')]"
      },
      "name": "[parameters('vmSSName')]",
      "apiVersion": "[variables('computeApiVersion')]",
      "location": "[resourceGroup().location]",
      "properties": {
        "overprovision": "true",
        "upgradePolicy": {
          "mode": "Manual"
        },
        "virtualMachineProfile": {
          "storageProfile": {
            "imageReference": {
              "id": "[resourceId('Microsoft.Compute/images', parameters('sourceImageName'))]"
            }
          },
          "osProfile": {
            "computerNamePrefix": "[parameters('vmSSName')]",
            "adminUsername": "[parameters('adminUsername')]",
            "adminPassword": "[parameters('adminPassword')]"
          },
          "networkProfile": {
            "networkInterfaceConfigurations": [
              {
                "name": "nic1",
                "properties": {
                  "primary": "true",
                  "ipConfigurations": [
                    {
                      "name": "ip1",
                      "properties": {
                        "subnet": {
                          "id": "[variables('subnetRef')]"
                        },
                        "loadBalancerBackendAddressPools": [
                          {
                            "id": "[variables('lbBEAddressPoolID')]"
                          }
                        ]
                      }
                    }
                  ]
                }
              }
            ]
          }
        }
      },
      "dependsOn": [
        "[concat('Microsoft.Network/loadBalancers/',variables('lbName'))]",
        "[concat('Microsoft.Network/virtualNetworks/',variables('virtualNetworkName'))]"
      ]
    },
    {
      "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/', parameters('vmSSName'))]",
        "enabled": true,
        "profiles": [
          {
            "name": "Profile1",
            "capacity": {
              "minimum": "1",
              "maximum": "20",
              "default": "[parameters('instanceCount')]"
            },
            "rules": [
              {
                "metricTrigger": {
                  "metricName": "Percentage CPU",
                  "metricNamespace": "",
                  "metricResourceUri": "[concat('/subscriptions/',subscription().subscriptionId, '/resourceGroups/',  resourceGroup().name, '/providers/Microsoft.Compute/virtualMachineScaleSets/', parameters('vmSSName'))]",
                  "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/',parameters('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/', parameters('vmSSName'))]"
      ]
    }
  ],
  "outputs": {}
}