This file is indexed.

/etc/init/zram-config.conf is in zram-config 0.1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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description	"Initializes zram swaping"
author		"Adam Conrad <adconrad@canonical.com>"

start on runlevel [2345]

pre-start script
  # load dependency modules
  NRDEVICES=$(grep -c ^processor /proc/cpuinfo | sed 's/^0$/1/')
  if modinfo zram | grep -q ' zram_num_devices:' 2>/dev/null; then
    MODPROBE_ARGS="zram_num_devices=${NRDEVICES}"
  elif modinfo zram | grep -q ' num_devices:' 2>/dev/null; then
    MODPROBE_ARGS="num_devices=${NRDEVICES}"
  else
    exit 1
  fi
  modprobe zram $MODPROBE_ARGS

  # Calculate memory to use for zram (1/2 of ram)
  totalmem=`free | grep -e "^Mem:" | sed -e 's/^Mem: *//' -e 's/  *.*//'`
  mem=$(((totalmem / 2 / ${NRDEVICES}) * 1024))

  # initialize the devices
  for i in $(seq ${NRDEVICES}); do
    DEVNUMBER=$((i - 1))
    echo $mem > /sys/block/zram${DEVNUMBER}/disksize
    mkswap /dev/zram${DEVNUMBER}
    swapon -p 5 /dev/zram${DEVNUMBER}
  done
end script

post-stop script
  if DEVICES=$(grep zram /proc/swaps | awk '{print $1}'); then
    for i in $DEVICES; do
      swapoff $i
    done
  fi
  rmmod -w zram
end script