刚刚的一篇Blog采用Json Template的方式从已有的VHD创建了一台新的VM。由于Json Template封装的比较好，可以改的内容不多。
下面将介绍通过用Powershell来从已有的VHD创建一台新的VM。
由于Powershell中的各种变量、参数都是可以定义的，所以可以自己去修改、创建。
下面是具体的脚本：
function
vm-fromvhd{
param(
#The VM resource group
[Parameter(Mandatory=$true)]
[String]$rgname,
#The VM name
[Parameter(Mandatory=$true)]
[String]$vmname,
#The High Avalibility Set name
[Parameter(Mandatory=$true)]
[String]$hasetname,
#The new VM IP name
[Parameter(Mandatory=$true)]
[String]$vmpipname,
#The Vnet Name
[Parameter(Mandatory=$true)]
[String]$vnetname,
#The Subnet Name
[Parameter(Mandatory=$true)]
[String]$subnet1,
#The new VM size
[Parameter(Mandatory=$true)]
[String]$vmsize,
#The existing VHD URL
[Parameter(Mandatory=$true)]
[String]$osDiskURL
)
#Get a random text as the random text
$hash
=
$null
for ($i
=
0; $i
-le
4; $i++){
$j
= (97..122) |
Get-Random
-Count 1
|
% {[char]$_}
$hash
=
$hash
+
$j
}
for ($i
=
0; $i
-le
4; $i++){
$j
= (48..57) |
Get-Random
-Count 1
|
% {[char]$_}
$hash
=
$hash
+
$j
}
#check the Resource Group, if not exist, create
$rgs
=
Get-AzureRmResourceGroup
-Location
"China East"
$rgrslt
=
$false
foreach ($rg
in
$rgs){if($rg.ResourceGroupName -eq $rgname){$rgrslt
=
$true;break}}
if(-not
$rgrslt) {$rg
=
New-AzureRmResourceGroup
-Name
$rgname
-Location
"China East"}
#check the High Avalibility Set, if not exist, create
foreach ($rgh
in
$rgs){
$haset
=
Get-AzureRmAvailabilitySet
-ResourceGroupName
$rgh.ResourceGroupName -Name $hasetname
-ErrorAction
Ignore;
if($haset.name -match $hasetname){
if($haset.ResourceGroupName -match $rgname){break;}
else{write-host
"Please change another haset name";exit;}
}
}
if(-not
$haset.Name) {$haset
=
new-AzureRmAvailabilitySet
-ResourceGroupName
$rgname
-Name
$hasetname
-Location
$rg.Location}
#check the Vnet, if not exist, create
$vnets
=
Get-AzureRmVirtualNetwork
$vnetrslt
=
$false
foreach ($vnet
in
$vnets){if($vnet.Name -eq $vnetname){$vnetrslt
=
$true;break}}
if(-not
$vnetrslt) {$subnet1
=
New-AzureRmVirtualNetworkSubnetConfig
-Name
$subnet1
-AddressPrefix
172.16.1.0/24;$vnet
=
New-AzureRmVirtualNetwork
-Name
$vnetname
-AddressPrefix
172.16.0.0/16
-Subnet
$subnet1
-ResourceGroupName
$rgname
-Location
$rg.Location}
#check the PIP address, if not exist, create
$piprslt
=
Test-AzureRmDnsAvailability
-DomainNameLabel
$vmpipname
-Location
$rg.location
if(-not
$piprslt){$vmpipname
=
$hash
+
$vmpipname}
$pip
=
New-AzureRmPublicIpAddress
-Name
$vmpipname
-AllocationMethod
Dynamic
-DomainNameLabel
$vmpipname
-ResourceGroupName
$rgname
-Location
$rg.Location
#check the NIC, if not exist, create
$nics
=
Get-AzureRmNetworkInterface
$nicrslt
=
$false
foreach($nic
in
$nics){if($nic.name -eq $vmname){$nicrslt
=
$true;break}}
if($nicrslt){$nicname
=
$hash+$vmname}else{$nicname = $vmname}
$nic
=
New-AzureRmNetworkInterface
-Name
$nicname
-ResourceGroupName
$rgname
-Location
$rg.Location -SubnetId $vnet.Subnets[0].Id -PublicIpAddressId
$pip.Id
#create the VM
$vmosname
=
$hash
+
$vmname
+
"osDisk"
$vm
=
New-AzureRmVMConfig
-VMName
$vmname
-VMSize
$vmsize
-AvailabilitySetId
$haset.Id
$vm
=
Add-AzureRmVMNetworkInterface
-VM
$vm
-NetworkInterface
$nic
$vm
=
Set-AzureRmVMOSDisk
-VM
$vm
-Name
$vmosname
-VhdUri
$osDiskURL
-CreateOption
Attach
-Linux
New-AzureRmVM
-ResourceGroupName
$rgname
-Location
"China East"
-VM
$vm
}
$rgname
=
"vnet-bgp"
$vmname
=
"hwfromvhd02"
$hasetname
=
"hwvhdtest"
#Please check the haset isn‘t avalible
$vmpipname
=
"hwvhdtestpip"
$vnetname
=
"vnet-bgp-3"
$subnet1
=
"vlan1"
$vmsize
=
"Standard_D1"
$osDiskURL
=
"https://gwzdiskdisks420.blob.core.chinacloudapi.cn/vhds/hwvntp0120170401203214.vhd"
vm-fromvhd
-rgname
$rgname
-vmname
$vmname
-hasetname
$hasetname
-vmpipname
$vmpipname
-vnetname
$vnetname
-subnet1
$subnet1
-vmsize
$vmsize
-osDiskURL
$osDiskURL