Deploys a new template version to S3 and then recreates the stack.

deploy_test_stack.ps1

Import-Module AWSPowerShell

# So our AWS Scripts work well with Proxies.
$Browser = New-Object System.Net.WebClient
$Browser.Proxy.Credentials =[System.Net.CredentialCache]::DefaultNetworkCredentials

$StackName = 'TestStack'
$TemplateKey = '/CloudFormation/template.json'
$FileLocation = 'C:\Temp\template.json'
$BucketName = 'test-bucket'
$RegionUrl = 'https://s3-ex-ampleregion-1.amazonaws.com/'

Write-S3Object -BucketName $BucketName -Key $TemplateKey -File $FileLocation

Try {
    if(Get-CFNStack $StackName) {
        Write-Host 'CloudFormation Stack Exists, deleting.'
        Remove-CFNStack -StackName $StackName -Force
    }

    While(Get-CFNStack $StackName) {
        Start-Sleep 5
        Write-Host 'Waiting for the CloudFormation Stack to be deleted.'
    }
} Catch [Exception] {
    Write-Host ("Stack deletion failed: '" + $_.Message + "'.")
}
Try {
    $Stack = New-CFNStack -StackName $StackName `
        -TemplateURL ($RegionUrl + $BucketName + $TemplateKey)

    While((Get-CFNStack $StackName).StackStatus -ne 'CREATE_COMPLETE') {
        if((Get-CFNStack $StackName).StackStatus -eq 'ROLLBACK_COMPLETE') {
            Throw 'Stack creation failed.'
        }

        Write-Host 'Pending stack creation...'
        Start-Sleep 30
    }

    Write-Host 'Stack deployed successfully.'
} Catch [Exception] {
    Write-Host ("Stack creation failed: '" + $_.Message + "'.")
}