[ubuntu] Rename build scripts (#8866)

* [ubuntu] Rename build scripts

* [ubuntu] Change reboot to inline shell

* [ubuntu] Move disk space validation to pester tests

* [ubuntu] Rename helper and tests files

* [ubuntu] Changes to cleanup, post-deployment and r scripts

images/ubuntu/scripts/build/Install-PowerShellAzModules.ps1

@@ -0,0 +1,45 @@
+################################################################################
+##  File:  Install-PowerShellAzModules.ps1
+##  Desc:  Install Az modules for PowerShell
+################################################################################
+
+$ErrorActionPreference = "Stop"
+$ProgressPreference = "SilentlyContinue"
+
+Import-Module "$env:HELPER_SCRIPTS/../tests/Helpers.psm1" -DisableNameChecking
+
+# Get modules content from toolset
+$modules = (Get-ToolsetContent).azureModules
+$installPSModulePath = "/usr/share"
+
+foreach ($module in $modules)
+{
+    $moduleName = $module.name
+    Write-Host "Installing ${moduleName} to the ${installPSModulePath} path..."
+    foreach ($version in $module.versions)
+    {
+        $modulePath = Join-Path -Path $installPSModulePath -ChildPath "${moduleName}_${version}"
+        Write-Host " - $version [$modulePath]"
+        Save-Module -Path $modulePath -Name $moduleName -RequiredVersion $version -Force
+    }
+
+    $assets = Invoke-RestMethod $module.url
+
+    # Get github release asset for each version
+    foreach ($toolVersion in $module.zip_versions) {
+        $asset = $assets | Where-Object version -eq $toolVersion `
+        | Select-Object -ExpandProperty files `
+        | Select-Object -First 1
+
+        Write-Host "Installing $($module.name) $toolVersion ..."
+        if ($null -ne $asset) {
+            Write-Host "Download $($asset.filename)"
+            wget $asset.download_url -nv --retry-connrefused --tries=10 -P $installPSModulePath
+        } else {
+            Write-Host "Asset was not found in versions manifest"
+            exit 1
+        }
+    }
+}
+
+Invoke-PesterTests -TestFile "PowerShellModules" -TestName "AzureModules"