Ensure unattended-upgrade processes are getting killed (#1481)

Author: gjulianm

components/os/scripts/apt-disable-unattended-upgrades.sh

@@ -1,5 +1,4 @@
 #!/bin/bash
-apt-get -y remove unattended-upgrades
 
 # Try to disable unattended upgrades and apt automatic updates, should not fail if it is not installed
 sudo systemctl disable unattended-upgrades.service || true
@@ -14,3 +13,18 @@ sudo systemctl disable apt-daily-upgrade.service || true
 sudo systemctl disable apt-daily-upgrade.timer || true
 sudo systemctl stop apt-daily-upgrade.service || true
 sudo systemctl stop apt-daily-upgrade.timer || true
+
+# Send the TERM signal to any remaining unattended-upgrades processes
+pgrep unattended-upgrades | xargs -r -n 1 -t kill -TERM || true
+
+max_to_wait=10
+while pgrep unattended-upgrades && [ $max_to_wait -gt 0 ]; do
+	echo "Waiting for unattended-upgrades to terminate"
+	sleep 1
+	max_to_wait=$((max_to_wait - 1))
+done
+
+# Kill any unattended-upgrades processes that didn't terminate
+pgrep unattended-upgrades | xargs -r -n 1 -t kill -KILL || true
+
+apt-get -y purge unattended-upgrades