Add-AzureAccount with stored credentials

Account.ps1

<#
 # Create PWD File with this command: 
 # Read-Host -AsSecureString | ConvertFrom-SecureString | out-file <<<PATH_TO_FILE>>>
 
 You can find instructions how to add deployment user to your subscription here:
 http://azure.microsoft.com/en-us/documentation/articles/powershell-install-configure/
 
 #>

$pwdFilePath = "<<<PATH_TO_FILE>>>"
if(!(Test-Path $pwdFilePath)) { throw "PWD File not found"; }

$username = "<<<AZURE_USER_NAME>>>";
$password =  cat $pwdFilePath | ConvertTo-SecureString;

$deploymentCreds = New-Object System.Management.Automation.PSCredential($username, $password);

Add-AzureAccount -Credential $deploymentCreds;