{
  "$schema" : "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion" : "1.0.0.0",
  "parameters" : {
    "baseName" : {
      "type" : "string",
      "minLength" : 1,
      "metadata" : {
        "description" : "Base name to be used in resource names (usually the cluster's Infra ID)"
      }
    },
    "workerIgnition" : {
      "type" : "string",
      "metadata" : {
        "description" : "Ignition content for the worker nodes"
      }
    },
    "numberOfNodes" : {
      "type" : "int",
      "defaultValue" : 3,
      "minValue" : 2,
      "maxValue" : 30,
      "metadata" : {
        "description" : "Number of OpenShift compute nodes to deploy"
      }
    },
    "sshKeyData" : {
      "type" : "securestring",
      "metadata" : {
        "description" : "SSH RSA public key file as a string"
      }
    },
    "diagnosticsStorageAccountName": {
      "type": "string"
    },
    "nodeVMSize" : {
      "type" : "string",
      "defaultValue" : "Standard_DS4_v2",
      "metadata" : {
        "description" : "The size of the each Node Virtual Machine"
      }
    }
  },
  "variables" : {
    "location" : "[resourceGroup().location]",
    "virtualNetworkName" : "[concat(parameters('baseName'), '-vnet')]",
    "virtualNetworkID" : "[resourceId('Microsoft.Network/virtualNetworks', variables('virtualNetworkName'))]",
    "nodeSubnetName" : "[concat(parameters('baseName'), '-worker-subnet')]",
    "nodeSubnetRef" : "[concat(variables('virtualNetworkID'), '/subnets/', variables('nodeSubnetName'))]",
    "infraLoadBalancerName" : "[parameters('baseName')]",
    "sshKeyPath" : "/home/core/.ssh/authorized_keys",
    "identityName" : "[concat(parameters('baseName'), '-identity')]",
    "imageName" : "[parameters('baseName')]",
    "masterAvailabilitySetName" : "[concat(parameters('baseName'), '-cluster')]",
    "numberOfNodes" : "[parameters('numberOfNodes')]",
    "vms" : {
      "copy" : [
        {
        "name" : "vmNames",
        "count" :  "[parameters('numberOfNodes')]",
        "input" : {
            "name" : "[concat(parameters('baseName'), string('-worker-'), string(copyIndex('vmNames')))]"
        }
      }
    ]
  }
  },
  "resources" : [
    {
      "name": "[parameters('diagnosticsStorageAccountName')]",
      "type": "Microsoft.Storage/storageAccounts",
      "apiVersion": "2017-10-01",
      "location": "[variables('location')]",
      "properties": {},
      "kind": "Storage",
      "sku": {
        "name": "Standard_LRS"
      }
    },
    {
      "apiVersion" : "2017-10-01",
      "type" : "Microsoft.Network/networkInterfaces",
      "location": "[variables('location')]",
      "copy" : {
        "name" : "nicCopy",
        "count" : "[variables('numberOfNodes')]"
      },
      "name" : "[concat(variables('vms').vmNames[copyIndex()].name, '-nic')]",
      "properties" : {
        "ipConfigurations" : [
          {
            "name" : "pipConfig",
            "properties" : {
              "privateIPAllocationMethod" : "Dynamic",
              "subnet" : {
                "id" : "[variables('nodeSubnetRef')]"
              }
            }
          }
        ]
      }
    },
    {
      "apiVersion" : "2017-12-01",
      "type" : "Microsoft.Compute/virtualMachines",
      "location" : "[variables('location')]",
      "copy" : {
        "name" : "vmCopy",
        "count" : "[variables('numberOfNodes')]"
      },
      "name" : "[variables('vms').vmNames[copyIndex()].name]",
      "dependsOn" : [
        "[concat('Microsoft.Network/networkInterfaces/', concat(variables('vms').vmNames[copyIndex()].name, '-nic'))]",
        "[concat('Microsoft.Storage/storageAccounts/', parameters('diagnosticsStorageAccountName'))]"
      ],
      "properties" : {
        "availabilitySet": {
          "id": "[resourceId('Microsoft.Compute/availabilitySets',variables('masterAvailabilitySetName'))]"
        },
        "hardwareProfile" : {
          "vmSize" : "[parameters('nodeVMSize')]"
        },
        "osProfile" : {
          "computerName" : "[variables('vms').vmNames[copyIndex()].name]",
          "adminUsername" : "core",
          "customData" : "[parameters('workerIgnition')]",
          "linuxConfiguration" : {
            "disablePasswordAuthentication" : true,
            "ssh" : {
              "publicKeys" : [
                {
                  "path" : "[variables('sshKeyPath')]",
                  "keyData" : "[parameters('sshKeyData')]"
                }
              ]
            }
          }
        },
        "storageProfile" : {
          "imageReference": {
            "id": "[resourceId('Microsoft.Compute/images', variables('imageName'))]"
          },
          "osDisk" : {
            "name": "[concat(variables('vms').vmNames[copyIndex()].name,'_OSDisk')]",
            "osType" : "Linux",
            "createOption" : "FromImage",
            "managedDisk": {
              "storageAccountType": "Standard_LRS"
            },
            "diskSizeGB": 128
          }
        },
        "networkProfile" : {
          "networkInterfaces" : [
            {
              "id" : "[resourceId('Microsoft.Network/networkInterfaces', concat(variables('vms').vmNames[copyIndex()].name, '-nic'))]",
              "properties": {
                "primary": true
              }
            }
          ]
        },
        "diagnosticsProfile": {
          "bootDiagnostics": {
            "enabled": true,
            "storageUri": "[reference(resourceId('Microsoft.Storage/storageAccounts', parameters('diagnosticsStorageAccountName'))).primaryEndpoints.blob]"
          }
        }
      }
    }
  ]
}