Private/Copy-OversizeTemplateToS3.ps1
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function Copy-OversizeTemplateToS3 { <# .SYNOPSIS Copy filesystem templates that are too large to S3 for processing .DESCRIPTION Examine the user's arguments. If they point to a filesystem template that is larger than 51200 bytes, then upload it to S3 and adjust the argumnents that will be passed to New-CFNStack/Update-CFNStack .PARAMETER CredentialArguments Credential arguments passed to public function. .PARAMETER StackArguments Stack arguments passed to public function. #> param ( [hashtable]$CredentialArguments, [hashtable]$StackArguments, [string]$TemplateLocation ) $dateStamp = [DateTime]::UtcNow.ToString('yyyyMMddHHmmss') if (-not $StackArguments.ContainsKey('TemplateBody')) { return } # Measure the body size in bytes if ([System.Text.ASCIIEncoding]::ASCII.GetByteCount($StackArguments['TemplateBody']) -lt 51200) { return } # Oversize - need to upload $bucket = Get-CloudFormationBucket -CredentialArguments $CredentialArguments $key = $dateStamp + '-' + [IO.Path]::GetFileName($TemplateLocation) $ub = New-Object UriBuilder -ArgumentList $bucket.BucketUrl $ub.Path += "/$key" Write-Host "Copying oversize template to $($ub.Uri.ToString())" Write-S3Object -BucketName $bucket.BucketName -Key $key -File (Resolve-Path $TemplateLocation).Path @CredentialArguments # Now adjust the stack arguments to point to what we have just uploaded. $StackArguments.Remove('TemplateBody') $StackArguments.Add('TemplateURL', $ub.Uri.ToString()) } |