create-vms-with-loadbalancer.ps1

$userName = "someusername"
$password = "somepassword"
$secPassword = ConvertTo-SecureString $password -AsPlainText -Force
$creds = New-Object System.Management.Automation.PSCredential( $userName,$secPassword )

# or
# $creds = Get-Credential

$rg                      = "test-rg"
$location                = "japanwest"
$storage                 = "somestorage"
$domain                  = "somedomain"
$vmSize                  = "Standard_A1"

$vnetName                = "myVnet"
$subnetName              = "Subnet-1"
$vnetPrefix              = "10.0.0.0/8"
$subnetPrefix            = "10.0.0.0/24"
$privateIpAddressPrefix  = "10.0.0.{0}"
$publicIpName            = "myPublicIP"
$vmNamePrefix            = "myUbuntu{0}"
$nicNamePrefix           = "myNic{0}"
$loadBalancerName        = "myLoadBalancer"
$avsetName               = "myAvSet"

$unitNum  = 3

$VerbosePreference = "continue"

# リソースグループの作成
Write-Verbose "Createing resource group $rg"
New-AzureResourceGroup -Name $rg -Location $location

# 仮想ネットワーク＆サブネットの作成
Write-Verbose "Creating virtual network and subnets."
$vnet   = New-AzureVirtualNetwork -ResourceGroupName $rg -Location $location `
    -Name $vnetName -AddressPrefix $vnetPrefix 

$vnet   = $vnet | Add-AzureVirtualNetworkSubnetConfig -Name $subnetName -AddressPrefix $subnetPrefix | 
                  Set-AzureVirtualNetwork
$vnet   = Get-AzureVirtualNetwork -ResourceGroupName $rg -Name $vnetName 
$subnet = Get-AzureVirtualNetworkSubnetConfig -Name $subnet1Name -VirtualNetwork $vnet

# アベイラビリティーセットの作成
Write-Verbose "Creating availability set."
$avset = New-AzureAvailabilitySet -ResourceGroupName $rg -Name $avsetName -Location $location 

# パブリックIPアドレスの作成
Write-Verbose "Creating public ip address."
$publicIpAddress = New-AzurePublicIpAddress -ResourceGroupName $rg -Name $publicIpName -Location $location `
    -AllocationMethod Dynamic -DomainNameLabel $domain

# ロードバランサーの設定
Write-Verbose "Creating load balancer config."
$frontendIpConfig  = New-AzureLoadBalancerFrontendIpConfig -Name "FrontEndIP" -PublicIpAddress $publicIpAddress
$backendPoolConfig = New-AzureLoadBalancerBackendAddressPoolConfig -Name "BackEndPool"
$probeConfig       = New-AzureLoadBalancerProbeConfig -Name "HttpProbe" -RequestPath "index.html" `
    -Protocol Http -IntervalInSeconds 5 -ProbeCount 3 -Port 80 
$loadBalancerRuleConfig = New-AzureLoadBalancerRuleConfig -Name "Http" -FrontendIpConfiguration $frontendIpConfig `
    -BackendAddressPool $backendPoolConfig -Probe $probeConfig -Protocol Tcp -FrontendPort 80 -BackendPort 80

$inboundNatRuleConfig = @()

for($i=0; $i -lt $unitNum; $i++) {

    Write-Verbose "Creating NAT Rules $i"
    $inboundNatRuleConfig += New-AzureLoadBalancerInboundNatRuleConfig -Name ("SSH" + $i) -FrontendIpConfiguration $frontendIpConfig `
	-Protocol Tcp -FrontendPort (60000 + $i)  -BackendPort 22
}

Write-Verbose "Creating load balancer."
$loadBalancer = New-AzureLoadBalancer -ResourceGroupName $rg -Name $loadBalancerName -Location $location `
    -FrontendIpConfiguration $frontendIpConfig -InboundNatRule $inboundNatRuleConfig -LoadBalancingRule $loadBalancerRuleConfig `
    -BackendAddressPool $backendPoolConfig -Probe $probeConfig

# ストレージアカウント LRSで作成
Write-Verbose "Creating storage account."
New-AzureStorageAccount -ResourceGroupName $rg -Location $location -Name $storage -Type Standard_LRS

# VMの作成
for($i=0; $i -lt $unitNum; $i++) {

    $osDisk  = "https://{0}.blob.core.windows.net/vhds/OsDisk{1}.vhd" -f $storage, $i
    $nicName = $nicNamePrefix -f $i
    $vmName  = $vmNamePrefix -f $i
    $privateIpAddress = $privateIpAddressPrefix -f ($i+4)

    Write-Verbose "Creating VM $vmName"

    # ネットワークインタフェースの作成 
    $nic  = New-AzureNetworkInterface -ResourceGroupName $rg -Location $location `
	-Name $nicName -PrivateIpAddress $privateIpAddress -Subnet $subnet  `
	-LoadBalancerInboundNatRule     $loadBalancer.InboundNatRules[$i]   `
	-LoadBalancerBackendAddressPool $loadBalancer.BackendAddressPools[0]

    $config = `
	New-AzureVMConfig -VMName $vmName -VMSize $vmSize -AvailabilitySetId $avset.Id |
	Set-AzureVMOperatingSystem -Linux -ComputerName $vmName -Credential $creds  |
	Set-AzureVMSourceImage -PublisherName canonical -Offer UbuntuServer -Skus 14.04.2-LTS -Version 14.04.201506100 |
	Set-AzureVMOSDisk -Name "ubuntuOsDisk" -CreateOption fromImage -Caching ReadWrite -VhdUri $osDisk |
	Add-AzureVMNetworkInterface -Id $nic.Id 

    New-AzureVM -ResourceGroupName $rg -Location $location -VM $config
}