{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "functions": [
    {
      "namespace": "quickstart",
      "members": {
        "uniqueName": {
          "parameters": [
            {
              "name": "namePrefix",
              "type": "string"
            }
          ],
          "output": {
            "type": "string",
            "value": "[concat(toLower(parameters('namePrefix')), uniqueString(resourceGroup().id))]"
          }
        }
      }
    }
  ],
  "parameters": {
    "vmName": {
      "type": "string",
      "defaultValue": "simpleLinuxVM",
      "metadata": {
        "description": "The name of you Virtual Machine."
      }
    },
    "adminUsername": {
      "type": "string",
      "metadata": {
        "description": "Username for the Virtual Machine."
      }
    },
    "authenticationType": {
      "type": "string",
      "defaultValue": "password",
      "allowedValues": [
        "sshPublicKey",
        "password"
      ],
      "metadata": {
        "description": "Type of authentication to use on the Virtual Machine. SSH key is recommended."
      }
    },
    "adminPasswordOrKey": {
      "type": "securestring",
      "metadata": {
        "description": "SSH Key or password for the Virtual Machine. SSH key is recommended."
      }
    },
    "dnsLabelPrefix": {
      "type": "string",
      "defaultValue": "[toLower(concat('simplelinuxvm-', uniqueString(resourceGroup().id)))]",
      "metadata": {
        "description": "Unique DNS Name for the Public IP used to access the Virtual Machine."
      }
    },
    "ubuntuOSVersion": {
      "type": "string",
      "defaultValue": "18.04-LTS",
      "allowedValues": [
        "12.04.5-LTS",
        "14.04.5-LTS",
        "16.04.0-LTS",
        "18.04-LTS"
      ],
      "metadata": {
        "description": "The Ubuntu version for the VM. This will pick a fully patched image of this given Ubuntu version."
      }
    },
    "location": {
      "type": "string",
      "defaultValue": "[resourceGroup().location]",
      "metadata": {
        "description": "Location for all resources."
      }
    },
    "VmSize": {
      "type": "string",
      "defaultValue": "Standard_B2s",
      "metadata": {
        "description": "The size of the VM"
      }
    },
    "virtualNetworkName": {
      "type": "string",
      "defaultValue": "vNet",
      "metadata": {
        "description": "Name of the VNET"
      }
    },
    "subnetName": {
      "type": "string",
      "defaultValue": "Subnet",
      "metadata": {
        "description": "Name of the subnet in the virtual network"
      }
    },
    "networkSecurityGroupName": {
      "type": "string",
      "defaultValue": "SecGroupNet",
      "metadata": {
        "description": "Name of the Network Security Group"
      }
    }
  },
  "variables": {
    "publicIpAddressName": "[concat(parameters('vmName'), 'PublicIP' )]",
    "networkInterfaceName": "[concat(parameters('vmName'),'NetInt')]",
    "subnetRef": "[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworkName'), parameters('subnetName'))]",
    "osDiskType": "Standard_LRS",
    "subnetAddressPrefix": "10.1.0.0/24",
    "addressPrefix": "10.1.0.0/16",
    "linuxConfiguration": {
      "disablePasswordAuthentication": true,
      "ssh": {
        "publicKeys": [
          {
            "path": "[concat('/home/', parameters('adminUsername'), '/.ssh/authorized_keys')]",
            "keyData": "[parameters('adminPasswordOrKey')]"
          }
        ]
      }
    }
  },
  "resources": [
    {
      "type": "Microsoft.Network/networkInterfaces",
      "apiVersion": "2020-06-01",
      "name": "[variables('networkInterfaceName')]",
      "location": "[parameters('location')]",
      "dependsOn": [
        "[resourceId('Microsoft.Network/networkSecurityGroups/', parameters('networkSecurityGroupName'))]",
        "[resourceId('Microsoft.Network/virtualNetworks/', parameters('virtualNetworkName'))]",
        "[resourceId('Microsoft.Network/publicIpAddresses/', variables('publicIpAddressName'))]"
      ],
      "properties": {
        "ipConfigurations": [
          {
            "name": "ipconfig1",
            "properties": {
              "subnet": {
                "id": "[variables('subnetRef')]"
              },
              "privateIPAllocationMethod": "Dynamic",
              "publicIpAddress": {
                "id": "[resourceId('Microsoft.Network/publicIPAddresses',variables('publicIPAddressName'))]"
              }
            }
          }
        ],
        "networkSecurityGroup": {
          "id": "[resourceId('Microsoft.Network/networkSecurityGroups',parameters('networkSecurityGroupName'))]"
        }
      }
    },
    {
      "type": "Microsoft.Network/networkSecurityGroups",
      "apiVersion": "2020-06-01",
      "name": "[parameters('networkSecurityGroupName')]",
      "location": "[parameters('location')]",
      "properties": {
        "securityRules": [
          {
            "name": "SSH",
            "properties": {
              "priority": 1000,
              "protocol": "TCP",
              "access": "Allow",
              "direction": "Inbound",
              "sourceAddressPrefix": "*",
              "sourcePortRange": "*",
              "destinationAddressPrefix": "*",
              "destinationPortRange": "22"
            }
          }
        ]
      }
    },
    {
      "type": "Microsoft.Network/virtualNetworks",
      "apiVersion": "2020-06-01",
      "name": "[parameters('virtualNetworkName')]",
      "location": "[parameters('location')]",
      "properties": {
        "addressSpace": {
          "addressPrefixes": [
            "[variables('addressPrefix')]"
          ]
        },
        "subnets": [
          {
            "name": "[parameters('subnetName')]",
            "properties": {
              "addressPrefix": "[variables('subnetAddressPrefix')]",
              "privateEndpointNetworkPolicies": "Enabled",
              "privateLinkServiceNetworkPolicies": "Enabled"
            }
          }
        ]
      }
    },
    {
      "type": "Microsoft.Network/publicIpAddresses",
      "apiVersion": "2020-06-01",
      "name": "[variables('publicIpAddressName')]",
      "location": "[parameters('location')]",
      "sku": {
        "name": "Basic",
        "tier": "Regional"
      },
      "properties": {
        "publicIpAllocationMethod": "Dynamic",
        "publicIPAddressVersion": "IPv4",
        "dnsSettings": {
          "domainNameLabel": "[parameters('dnsLabelPrefix')]"
        },
        "idleTimeoutInMinutes": 4
      }
    },
    {
      "type": "Microsoft.Compute/virtualMachines",
      "apiVersion": "2020-06-01",
      "name": "[quickstart.uniqueName(parameters('vmName'))]",
      "location": "[parameters('location')]",
      "dependsOn": [
        "[resourceId('Microsoft.Network/networkInterfaces/', variables('networkInterfaceName'))]"
      ],
      "properties": {
        "hardwareProfile": {
          "vmSize": "[parameters('VmSize')]"
        },
        "storageProfile": {
          "osDisk": {
            "createOption": "fromImage",
            "managedDisk": {
              "storageAccountType": "[variables('osDiskType')]"
            }
          },
          "imageReference": {
            "publisher": "Canonical",
            "offer": "UbuntuServer",
            "sku": "[parameters('ubuntuOSVersion')]",
            "version": "latest"
          }
        },
        "networkProfile": {
          "networkInterfaces": [
            {
              "id": "[resourceId('Microsoft.Network/networkInterfaces', variables('networkInterfaceName'))]"
            }
          ]
        },
        "osProfile": {
          "computerName": "[parameters('vmName')]",
          "adminUsername": "[parameters('adminUsername')]",
          "adminPassword": "[parameters('adminPasswordOrKey')]",
          "linuxConfiguration": "[if(equals(parameters('authenticationType'), 'password'), json('null'), variables('linuxConfiguration'))]"
        }
      }
    }
  ],
  "outputs": {
    "adminUsername": {
      "type": "string",
      "value": "[parameters('adminUsername')]"
    },
    "hostname": {
      "type": "string",
      "value": "[reference(variables('publicIPAddressName')).dnsSettings.fqdn]"
    },
    "sshCommand": {
      "type": "string",
      "value": "[concat('ssh ', parameters('adminUsername'), '@', reference(variables('publicIPAddressName')).dnsSettings.fqdn)]"
    }
  }
}