Private/Wait-PSCFNStack.ps1
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function Wait-PSCFNStack { <# .SYNOPSIS Wait for a stack to do something, printing events along the way. .PARAMETER StackArn Stack(s) to wait on. .PARAMETER CredentialArguments Hash of common credetial and region arguments. .PARAMETER StartTime Time the stack update command was issued .OUTPUTS [bool] true if operation succeeded; else false #> param ( [string[]]$StackArn, [hashtable]$CredentialArguments, [DateTime]$StartTime ) $checkTime = $StartTime # Copy input array so as not to trash it. $arns = $StackArn | Foreach-Object { $_ } # States indicating any stack operation complete $completionStates = @( 'CREATE_COMPLETE' 'CREATE_FAILED' 'DELETE_COMPLETE' 'DELETE_FAILED' 'ROLLBACK_COMPLETE' 'ROLLBACK_FAILED' 'UPDATE_COMPLETE' 'UPDATE_ROLLBACK_COMPLETE' 'UPDATE_ROLLBACK_FAILED' ) # Best guess how wide to make stack name column $stackColumnWidth = $arns | Foreach-Object { Get-CFNStack -StackName $_ @CredentialArguments } | Foreach-Object { $stack = $_ # This stack $stack.StackName.Length # Nested stacks Get-CFNStackResourceList -StackName $_.StackId @CredentialArguments | Where-Object { $_.ResourceType -ieq 'AWS::CloudFormation::Stack' } | Foreach-Object { ($stack.StackName + "-" + $_.LogicalResourceId + "-" + ("X" * 12)).Length } } | Measure-Object -Maximum | Select-Object -ExpandProperty Maximum $anyFailed = $false $writeHeaders = $true while (($arns | Measure-Object).Count -gt 0) { Start-Sleep -Seconds 10 $stacks = $arns | Foreach-Object { Get-CFNStack -StackName $_ @CredentialArguments } $completedStackArns = $stacks | Where-Object { if ($_.StackStatus -ilike '*ROLLBACK*' -or $_.StackStatus -ilike '*FAILED*') { $anyFailed = $true } $completionStates -icontains $_.StackStatus } | Select-Object -ExpandProperty StackId if ($completedStackArns) { $arns = Compare-Object -ReferenceObject $arns -DifferenceObject $completedStackArns -PassThru } $ts = Write-StackEvents -StackArn $arns -EventsAfter $checkTime $CredentialArguments -WriteHeaders $writeHeaders -StackColumnWidth $stackColumnWidth $writeHeaders = $false if ($ts) { $checkTime = $ts } } Write-StackEvents -StackArn $StackArn -EventsAfter $checkTime $CredentialArguments -WriteHeaders $false -StackColumnWidth $stackColumnWidth # Output boolean - any final state containing ROLLBACK or FAILED indicates operation unsuccessful -not $anyFailed } |