src/private/ConvertFrom-ARM.ps1
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function ConvertFrom-ARM { [CmdletBinding()] param ( [string[]] $Targets, [ValidateSet('Azure Resource Group')] [string] $TargetType = 'Azure Resource Group', [int] $CategoryDepth = 1, [string[]] $ExcludeTypes ) begin { $rank = @{ "Microsoft.Network/publicIPAddresses" = 1 "Microsoft.Network/loadBalancers" = 2 "Microsoft.Network/virtualNetworks" = 3 "Microsoft.Network/networkSecurityGroups" = 4 "Microsoft.Network/networkInterfaces" = 5 "Microsoft.Compute/virtualMachines" = 6 } $Excluded_ARMObjects = $( "Microsoft.Network/virtualNetworks*", "Microsoft.Network/virtualNetworks/subnets*", "Microsoft.Network/networkSecurityGroups*" ) if($ExcludeTypes){ $Excluded_ARMObjects += $ExcludeTypes } # $scriptblock = [scriptblock]::Create($Excluded_ARMObjects.ForEach({'$_.type -NotLike "{0}"' -f $_}) -join ' -and ') # $scriptblock = [scriptblock]::Create($Excluded_ARMObjects.ForEach({'$_.fromcateg -NotLike "{0}" -and $_.tocateg -NotLike "{0}"' -f $_}) -join ' -and ') $scriptblock = [scriptblock]::Create( $Excluded_ARMObjects.ForEach( { '$_.fromcateg -NotLike "{0}" -and $_.tocateg -NotLike "{0}"' -f $_ }) -join ' -and ' ) } process { # $Targets | ForEach-Object -ThrottleLimit 10 -Parallel { # Import-Module Az.Resources # $TargetType = $using:TargetType # $CategoryDepth = $using:CategoryDepth # $Target = $_ # $Rank = $using:Rank # $scriptblock = [scriptblock]::Create($using:condition) Foreach($Target in $Targets){ $temp_armtemplate = New-TemporaryFile # $temp_armtemplate = (Join-Path ([System.IO.Path]::GetTempPath()) "armtemplate.json") #region obtaining-arm-template switch ($TargetType) { 'Azure Resource Group' { Write-CustomHost "Exporting ARM template of Azure resource group: `'$Target`'" -Indentation 1 -color Green $template = (Export-AzResourceGroup -ResourceGroupName $Target -SkipAllParameterization -Force -Path $temp_armtemplate -WarningAction SilentlyContinue -Verbose:$false).Path } 'File' { Write-CustomHost "Accessing ARM template from local file: `'$Target`'" -Indentation 2 -color Green $template = $Target } 'Url' { Write-CustomHost "Downloading ARM template from URL: `'$Target`'" -Indentation 2 -color Green # $Target = 'https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/101-vm-simple-linux/azuredeploy.json' $template = $temp_armtemplate Invoke-WebRequest -Uri $Target -OutFile $template -Verbose:$false # todo test-path the downloaded file } } Write-CustomHost "Processing the ARM template to extract resources" -Indentation 2 -color Green $arm = Get-Content -Path $template | ConvertFrom-Json $resources = $arm.Resources | Where-Object $scriptblock if ($resources) { Write-CustomHost "Total resources found: $($resources.count)" -Indentation 2 -color Green Write-CustomHost "Cleaning up temporary ARM template file at: $template" -Indentation 2 -color Green Remove-Item $template -Force } else { Write-CustomHost "Total resources/sub-resources found: $($resources.count)" -Indentation 2 -color Green Write-CustomHost "Skipping ${TargetType}: `"$Target`" as no resources were found." -Indentation 2 -color Green continue } #endregion obtaining-arm-template #region parsing-arm-template-and-finding-resource-dependencies $data = @() # $excluded_types = @("scheduledqueryrules","containers","solutions","modules","savedSearches") $data += $resources | Where-Object { $_.type.tostring().split("/").count -le $($CategoryDepth + 1) } | ForEach-Object { $dependson = $null if ($_.dependson) { $dependson = $_.DependsOn #| ForEach-Object { $_.ToString().split("parameters('")[1].split("')")[0]} foreach ($dependency in $dependson) { $r = $rank["$($_.type.ToString())"] [PSCustomObject]@{ fromcateg = $_.type.ToString() #.split('/')[-1] from = $_.name.ToString() #.split('/')[-1] #.split("parameters('")[1].split("')")[0] to = $dependency.tostring().replace("[resourceId(", "").replace(")]", "").Split(",")[1].replace("'", "").trim() # -join '/' #.split('/')[-1] tocateg = $dependency.tostring().replace("[resourceId(", "").replace(")]", "").Split(",")[0].replace("'", "").trim().Split("/")[0..1] -join '/' #.split('/')[-1] isdependent = $true rank = if ($r) { $r }else { 9999 } } } } else { $r = $rank["$($_.type.ToString())"] [PSCustomObject]@{ fromcateg = $_.type.ToString() #.split('/')[-1] from = $_.name.ToString() #.split("parameters('")[1].split("')")[0] to = '' tocateg = '' isdependent = $false rank = if ($r) { $r }else { 9999 } } } } | Sort-Object Rank #endregion parsing-arm-template-and-finding-resource-associations [PSCustomObject]@{ Type = $TargetType Name = $Target Resources = $data | Where-Object $scriptblock } } } end { } } |