RunBook/Start-SingleAzureRmVm.ps1
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Workflow Start-SingleAzureRmVm { Param( [parameter(mandatory=$false)] [String] $CredentialAssetName = "AzureCredential", [parameter(mandatory=$false)] [String] $TenantIdAssetName = "TenantId", [parameter(mandatory=$true)] [String] $ResourceGroupName, [parameter(mandatory=$true)] [String] $VmName, [parameter(mandatory=$false)] [Boolean] $DryRun = $false ) <# Login Azure RM #> function LoginAzureRm { param([String]$CredentialAssetName, [String]$TenantIdAssetName) $Cred = Get-AutomationPSCredential -Name $CredentialAssetName $TenantId = Get-AutomationVariable -Name $TenantIdAssetName if(!$Cred) { Throw "Could not find an Automation Credential Asset named '${CredentialAssetName}'. Make sure you have created one in this Automation Account." } Login-AzureRmAccount -ServicePrincipal -Credential $Cred -TenantId $TenantId } <# Returns true if Virtual Machine already started. #> function IsVmAllocated { param([String]$ResourceGroupName, [String]$VmName) $Vm = Get-AzureRmVM -Name $VmName -ResourceGroupName $ResourceGroupName -Status -ErrorAction Continue if (!$Vm) { Throw "Virtual machine '${VmName}' not found in Resource Group '${ResourceGroupName}'." } $Status = $Vm.Statuses | ?{ $_.Code -eq "PowerState/deallocated" } $Status -eq $null } <# Start virtual machine. Rertrying 3 times until success. #> function StartVm { param([String]$ResourceGroupName, [String]$VmName) $TryCount = 0 Do { $TryCount++ Write-Output "Trying to start Virtual Machine '${VmName}', Count=${TryCount}" $Result = Start-AzureRmVM -ResourceGroupName $ResourceGroupName -Name $VmName -ErrorAction Continue if ($Result.IsSuccessStatusCode) { Write-Output "Virtual Machine '${VmName}' started." } else { Write-Output "Virtual Machine '${VmName}' cannot start." Start-Sleep -Seconds 15 } } while($TryCount -le 3 -and !$Result.IsSuccessStatusCode) } ############ # Main ############ LoginAzureRm -CredentialAssetName $CredentialAssetName -TenantIdAssetName $TenantIdAssetName if (IsVmAllocated -ResourceGroupName $ResourceGroupName -VmName $VmName) { Write-Output "Virtual machine '${VmName}' is already allocated." } else { if ($DryRun) { Write-Output "DryRun mode, nothing to do." } else { StartVm -ResourceGroupName $ResourceGroupName -VmName $VmName } } } |