Get-CloudManagementTools

This PowerShell script can be used to download some of the common cloud (Azure and AWS) management tools available on Windows Platform.

Earlier I had seen Download and Install SharePoint 2013 Prerequisites on Windows Server 2012.  However this technet script uses Start-BitsTransfer cmdlet from BitsTransfer module. I was toying with similar idea while working on my last workshop (Cloud Automation Using PowerShell) preparation. Since some of the URLs do redirect the Start-BitsTransfer wasn’t working for me initially.

I started with simple Invoke-WebRequest cmdlet and added second variation to handle redirected URLs and pass it to Start-BitsTransfer. So let’s go through the script and output for the both the approaches.

I am using Downloads directory to store the files. For demo I have created CloudTools folder inside. I already have AWS Tools for Windows PowerShell downloaded in the folder.

15012017-01

I am already into the working directory where the script is saved.

15012017-02

Started the script execution and you can notice it finds AWS Tools For Windows PowerShell and skips the download for it.

15012017-03

On my Windows Server 2012 R2 VM it created a CloudTools folder which was missing before download starts.

15012017-03-01

# The folder location where the downloads will be saved
$DestinationFolder = "$ENV:homedrive$env:homepath\Downloads\CloudTools"
If (!(Test-Path $DestinationFolder)){
 New-Item $DestinationFolder -ItemType Directory -Force
}

Download is in progress…

15012017-04

Before this, I have created hash table with Download URL and File Name After Downloaded

# Specify download url's for various cloud management tools. Do not change unless Microsoft changes the downloads themselves in future
$Downloads = @{
 # Latest Azure PowerShell
 # Github: https://github.com/Azure/azure-powershell/releases/latest
 # WebPI: https://www.microsoft.com/web/handlers/webpi.ashx/getinstaller/WindowsAzurePowershellGet.3f.3f.3fnew.appids
 "https://aka.ms/azure-powershellget2" = "$DestinationFolder\Azure-PowerShell.msi"; 
 # Latest Azure Storage Explorer
 "https://go.microsoft.com/fwlink/?LinkId=708343" = "$DestinationFolder\StorageExplorer.exe";
 # Latest AZCopy
 "http://aka.ms/downloadazcopy" = "$DestinationFolder\MicrosoftAzureStorageTools.msi";
 # Latest Azure CLI
 "http://aka.ms/webpi-azure-cli" = "$DestinationFolder\Azure-cli.msi";
 # Azure Storage Emulator
 "https://go.microsoft.com/fwlink/?LinkId=717179&clcid=0x409" = "$DestinationFolder\MicrosoftAzureStorageEmulator.msi";
 # Latest AWS Tools For Windows PowerShell
 "http://sdk-for-net.amazonwebservices.com/latest/AWSToolsAndSDKForNet.msi" = "$DestinationFolder\AWSToolsAndSDKForNet.msi";
 }

Approach 1 – using Invoke-WebRequest cmdlet ,

Then I have a function which loop through the elements in downloads hash table using Invoke-WebRequest cmdlet,

function DownloadFiles(){ 
 Write-Host ""
 Write-Host "====================================================================="
 Write-Host " Downloading Cloud Management Tools for Azure & AWS" 
 Write-Host "====================================================================="
 
 $ReturnCode = 0

$Downloads.GetEnumerator() | ForEach-Object { 
 $DownloadURL = $_.get_key()
 $Filespec = $_.get_value()
 # Get the file name based on the portion of the file path after the last slash 
 $FilePath = Split-Path $Filespec
 $FileName = Split-Path $Filespec -Leaf
 Write-Host "DOWNLOADING: $FileName"
 Write-Host " FROM: $DownloadURL"
 Write-Host " TO: $FilePath"
 
 Try 
 { 
 # Check if file already exists 
 If (!(Test-Path "$Filespec")) 
 { 
 # Begin download 
 Invoke-WebRequest -Uri $DownloadURL -OutFile "$Filespec" -ErrorVariable err
 If ($err) {Throw ""} 
 Write-Host " STATUS: Downloaded"
 Write-Host
 } 
 Else 
 { 
 Write-Host " STATUS: Already exists. Skipping." 
 Write-Host
 } 
 } 
 Catch 
 { 
 $ReturnCode = -1
 Write-Warning " AN ERROR OCCURRED DOWNLOADING `'$FileName`'" 
 Write-Error $_
 Break 
 }
} 
 return $ReturnCode 
}

and the downloads completed.

15012017-05

Approach 2 – using Start-BitsTransfer cmdlet,

First a function Get-RedirectedUrl to get redirected URL

# This function gets the end URL to avoid redirection in URL breaking the Start-BitsTransfer
# Courtesy: http://www.powershellmagazine.com/2013/01/29/pstip-retrieve-a-redirected-url/
Function Get-RedirectedUrl {
 Param (
 [Parameter(Mandatory=$true)]
 [String]$url
 )
 $request = [System.Net.WebRequest]::Create($url)
 $request.AllowAutoRedirect=$true
 try{
 $response=$request.GetResponse()
 $response.ResponseUri.AbsoluteUri
 $response.Close()
 }
 catch{
 “ERROR: $_”
 }
}

Then I have a function which loop through the elements in downloads hash table using Start-BitsTransfer cmdlet,

# Import Required Modules: BITS is used for file transfer
Import-Module BitsTransfer

function DownloadFiles(){ 
 Write-Host ""
 Write-Host "====================================================================="
 Write-Host " Downloading Cloud Management Tools for Azure & AWS" 
 Write-Host "====================================================================="
 
 $ReturnCode = 0

$Downloads.GetEnumerator() | ForEach-Object { 
 $DownloadURL = Get-RedirectedUrl -URL $_.get_key()
 $Filespec = $_.get_value()
 # Get the file name based on the portion of the file path after the last slash 
 $FilePath = Split-Path $Filespec
 $FileName = Split-Path $Filespec -Leaf
 Write-Host "DOWNLOADING: $FileName"
 Write-Host " FROM: $DownloadURL"
 Write-Host " TO: $FilePath"
 
 Try 
 { 
 # Check if file already exists 
 If (!(Test-Path "$Filespec")) 
 { 
 # Begin download 
 Start-BitsTransfer -Source $DownloadURL -Destination "$Filespec" -DisplayName "Downloading `'$FileName`' to $FilePath" -Priority High -Description "From $DownloadURL..." -ErrorVariable err 
 If ($err) {Throw ""} 
 Write-Host " STATUS: Downloaded"
 Write-Host
 } 
 Else 
 { 
 Write-Host " STATUS: Already exists. Skipping." 
 Write-Host
 } 
 } 
 Catch 
 { 
 $ReturnCode = -1
 Write-Warning " AN ERROR OCCURRED DOWNLOADING `'$FileName`'" 
 Write-Error $_
 Break 
 }

} 
 return $ReturnCode 
}

while downloading the progress bar looks different,

15012017-06

I had deleted 2 files and ran the script again and following is the output,

15012017-07

If you want to know more about BITSTransfer & PowerShell you can refer this How to copy files with BITS using PowerShell

You can try both variation scripts by downloading from my (cloudscripts) github. I will be updating it later for more tools.

That’s it for now.

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