Bug: Mask fwupd timer on ubuntu images (#12225)

* Bug: Fully remove `fwupd` from ubuntu images

We're running on VMs in Azure and the fwupd package is not needed.

Leaving it enable means periodic refreshes show in network traffic and firewall logs.

* Update check method

* Simplify test

images/ubuntu/scripts/build/configure-environment.sh

@@ -59,9 +59,18 @@ ln -s $HELPER_SCRIPTS/invoke-tests.sh /usr/local/bin/invoke_tests
 # Disable motd updates metadata
 sed -i 's/ENABLED=1/ENABLED=0/g' /etc/default/motd-news
 
+# Remove fwupd if installed. We're running on VMs in Azure and the fwupd package is not needed.
+# Leaving it enable means periodic refreshes show in network traffic and firewall logs
+# Check if fwupd-refresh.timer exists in systemd
+if systemctl list-unit-files fwupd-refresh.timer &>/dev/null; then
+    echo "Masking fwupd-refresh.timer..."
+    systemctl mask fwupd-refresh.timer
+fi
+
+# This is a legacy check, leaving for earlier versions of Ubuntu
+# If fwupd config still exists, disable the motd updates
 if [[ -f "/etc/fwupd/daemon.conf" ]]; then
     sed -i 's/UpdateMotd=true/UpdateMotd=false/g' /etc/fwupd/daemon.conf
-    systemctl mask fwupd-refresh.timer
 fi
 
 # Disable to load providers

images/ubuntu/scripts/tests/System.Tests.ps1

@@ -6,3 +6,10 @@ Describe "Disk free space" -Skip:(-not [String]::IsNullOrEmpty($env:AGENT_NAME)
         $freeSpace | Should -BeGreaterOrEqual 17GB
     }
 }
+
+Describe "fwupd removed" {
+    It "Is not present on box" {
+        $systemctlOutput = & systemctl list-unit-files fwupd-refresh.timer
+        $systemctlOutput | Should -Match "masked"
+    }
+}