Changed the retrieveal of the configurations

Author: sanderstad

functions/Get-PSDCImage.ps1

@@ -70,17 +70,24 @@
     )
 
     begin {
+        # Get the module configurations
+        $pdcSqlInstance = Get-PSFConfigValue -FullName psdatabaseclone.database.Server
+        $pdcDatabase = Get-PSFConfigValue -FullName psdatabaseclone.database.name
+        if (-not $pdcCredential) {
+            $pdcCredential = Get-PSFConfigValue -FullName psdatabaseclone.database.credential -Fallback $null
+        }
+        else {
+            $pdcCredential = $PSDCSqlCredential
+        }
+
         # Test the module database setup
         try {
-            Test-PSDCConfiguration -SqlCredential $PSDCSqlCredential -EnableException
+            Test-PSDCConfiguration -SqlCredential $pdcCredential -EnableException
         }
         catch {
             Stop-PSFFunction -Message "Something is wrong in the module configuration" -ErrorRecord $_ -Continue
         }
 
-        $pdcSqlInstance = Get-PSFConfigValue -FullName psdatabaseclone.database.server
-        $pdcDatabase = Get-PSFConfigValue -FullName psdatabaseclone.database.name
-
         $query = "
             SELECT ImageID,
                 ImageName,