DeskPi Super6C | Raspberry Pi CM4 | Enable Memory Cgroup on all nodes over SSH

deskpi_nodes_enable_memory_cgroup.sh

# Variables
USERNAME=
HOSTNAME_BASE=deskpi0
DOMAIN=

# Execute on nodes
for ID in {1..6}
do

echo "===================  $HOSTNAME_BASE$ID.$DOMAIN  ==================="

ssh -T $USERNAME@$HOSTNAME_BASE$ID.$DOMAIN << EOF

FILE=/boot/firmware/cmdline.txt
DO_REBOOT=false
for PHRASE in "cgroup_enable=memory" "cgroup_memory=1"
do
  if ! grep -q \$PHRASE \$FILE; then
      echo "\$(cat \$FILE) \$PHRASE" | sudo tee \$FILE 1>/dev/null
      echo "'\$PHRASE' added to \$FILE"
      DO_REBOOT=true
  fi
done

# Reboot if needed
if \$DO_REBOOT; then
  echo "Rebooting NOW..."
  sudo reboot
fi

EOF

done