{
  "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "adminUsername": {
      "type": "string"
    },
    "adminPassword": {
      "type": "securestring"
    },
    "storageAccountName": {
      "type": "string"
    },
    "storageAccountSasToken": {
      "type": "securestring"
    }
  },
  "resources": [
    {
      "type": "Microsoft.Network/virtualNetworks",
      "name": "myVnet",
      "location": "[resourceGroup().location]",
      "apiVersion": "2016-12-01",
      "properties": {
        "addressSpace": {
          "addressPrefixes": [
            "10.0.0.0/16"
          ]
        },
        "subnets": [
          {
            "name": "mySubnet",
            "properties": {
              "addressPrefix": "10.0.0.0/16"
            }
          }
        ]
      }
    },
    {
      "type": "Microsoft.Compute/virtualMachineScaleSets",
      "name": "myScaleSet",
      "location": "[resourceGroup().location]",
      "apiVersion": "2016-04-30-preview",
      "dependsOn": [
        "Microsoft.Network/virtualNetworks/myVnet"
      ],
      "sku": {
        "name": "Standard_A1",
        "capacity": 2
      },
      "properties": {
        "upgradePolicy": {
          "mode": "Manual"
        },
        "virtualMachineProfile": {
          "storageProfile": {
            "imageReference": {
              "publisher": "Canonical",
              "offer": "UbuntuServer",
              "sku": "16.04-LTS",
              "version": "latest"
            }
          },
          "osProfile": {
            "computerNamePrefix": "vm",
            "adminUsername": "[parameters('adminUsername')]",
            "adminPassword": "[parameters('adminPassword')]"
          },
          "networkProfile": {
            "networkInterfaceConfigurations": [
              {
                "name": "myNic",
                "properties": {
                  "primary": "true",
                  "ipConfigurations": [
                    {
                      "name": "myIpConfig",
                      "properties": {
                        "subnet": {
                          "id": "[concat(resourceId('Microsoft.Network/virtualNetworks', 'myVnet'), '/subnets/mySubnet')]"
                        }
                      }
                    }
                  ]
                }
              }
            ]
          },
          "extensionProfile": {
            "extensions": [
              {
                "name": "LinuxDiagnosticExtension",
                "properties": {
                  "publisher": "Microsoft.Azure.Diagnostics",
                  "type": "LinuxDiagnostic",
                  "typeHandlerVersion": "3.0",
                  "settings": {
                    "StorageAccount": "[parameters('storageAccountName')]",
                    "ladCfg": {
                      "diagnosticMonitorConfiguration": {
                        "performanceCounters": {
                          "sinks": "WADMetricJsonBlob",
                          "performanceCounterConfiguration": [
                            {
                              "unit": "percent",
                              "type": "builtin",
                              "class": "memory",
                              "counter": "percentUsedMemory",
                              "counterSpecifier": "/builtin/memory/percentUsedMemory",
                              "condition": "IsAggregate=TRUE"
                            }
                          ]
                        },
                        "metrics": {
                          "metricAggregation": [
                            {
                              "scheduledTransferPeriod": "PT1M"
                            }
                          ],
                          "resourceId": "[resourceId('Microsoft.Compute/virtualMachineScaleSets', 'myScaleSet')]"
                        }
                      }
                    }
                  },
                  "protectedSettings": {
                    "storageAccountName": "[parameters('storageAccountName')]",
                    "storageAccountSasToken": "[parameters('storageAccountSasToken')]",
                    "sinksConfig": {
                      "sink": [
                        {
                          "name": "WADMetricJsonBlob",
                          "type": "JsonBlob"
                        }
                      ]
                    }
                  }
                }
              }
            ]
          }
        }
      }
    },
    {
      "type": "Microsoft.Insights/autoscaleSettings",
      "apiVersion": "2015-04-01",
      "name": "guestMetricsAutoscale",
      "location": "[resourceGroup().location]",
      "dependsOn": [
        "Microsoft.Compute/virtualMachineScaleSets/myScaleSet"
      ],
      "properties": {
        "name": "guestMetricsAutoscale",
        "targetResourceUri": "[resourceId('Microsoft.Compute/virtualMachineScaleSets', 'myScaleSet')]",
        "enabled": true,
        "profiles": [
          {
            "name": "Profile1",
            "capacity": {
              "minimum": "1",
              "maximum": "10",
              "default": "3"
            },
            "rules": [
              {
                "metricTrigger": {
                  "metricName": "/builtin/memory/percentUsedMemory",
                  "metricNamespace": "",
                  "metricResourceUri": "[resourceId('Microsoft.Compute/virtualMachineScaleSets', 'myScaleSet')]",
                  "timeGrain": "PT1M",
                  "statistic": "Average",
                  "timeWindow": "PT5M",
                  "timeAggregation": "Average",
                  "operator": "GreaterThan",
                  "threshold": 60
                },
                "scaleAction": {
                  "direction": "Increase",
                  "type": "ChangeCount",
                  "value": "1",
                  "cooldown": "PT1M"
                }
              },
              {
                "metricTrigger": {
                  "metricName": "/builtin/memory/percentUsedMemory",
                  "metricNamespace": "",
                  "metricResourceUri": "[resourceId('Microsoft.Compute/virtualMachineScaleSets', 'myScaleSet')]",
                  "timeGrain": "PT1M",
                  "statistic": "Average",
                  "timeWindow": "PT5M",
                  "timeAggregation": "Average",
                  "operator": "LessThan",
                  "threshold": 30
                },
                "scaleAction": {
                  "direction": "Decrease",
                  "type": "ChangeCount",
                  "value": "1",
                  "cooldown": "PT1M"
                }
              }
            ]
          }
        ]
      }
    }
  ]
}