nwaku-compose/set_storage_retention.sh

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#!/bin/sh
# args <available space on disk MB> <size of existing postgresql dir MB> <margin MB> <min storage size MB> <max storage size MB>
# set SELECTED_STORAGE_SIZE_MB
select_store_size()
{
_AVAIL_SPACE_MB=$1
_PGSQL_SIZE_MB=$2
_MARGIN_MB=$3
_MIN_SIZE_MB=$4
_MAX_SIZE_MB=$5
unset SELECTED_STORAGE_SIZE_MB
if [ -z "$_AVAIL_SPACE_MB" ] || [ -z "$_PGSQL_SIZE_MB" ] || [ -z "$_MARGIN_MB" ] || [ -z "$_MIN_SIZE_MB" ] || [ -z "$_MAX_SIZE_MB" ]; then
>&2 echo "Internal error, not enough arguments passed to select_store_size"
fi
_USABLE_SPACE_MB=$(( _AVAIL_SPACE_MB + _PGSQL_SIZE_MB ))
# Give all the available space to the DB, minus what is already used and 3GB for logs etc
_TARGET_MB=$(( _USABLE_SPACE_MB - _MARGIN_MB))
if [ $_TARGET_MB -lt $_MIN_SIZE_MB ]; then
>&2 echo "Flooring storage retention to ${_MIN_SIZE_MB}MB"
SELECTED_STORAGE_SIZE_MB=$_MIN_SIZE_MB
elif [ $_TARGET_MB -gt $_MAX_SIZE_MB ]; then
>&2 echo "Capping storage retention to ${_MAX_SIZE_MB}MB"
SELECTED_STORAGE_SIZE_MB=$_MAX_SIZE_MB
else
>&2 echo "Storage retention set to ${_TARGET_MB}"
SELECTED_STORAGE_SIZE_MB=$_TARGET_MB
fi
}
if [ "$1" = "test" ]; then
echo "Running tests"
i=0
# avail pgdir marg min max
echo "test $i"; i=$(( i + 1)); select_store_size 10000 0 1000 1000 20000; [ "$SELECTED_STORAGE_SIZE_MB" -eq 9000 ] || echo "fail: $SELECTED_STORAGE_SIZE_MB"
echo "test $i"; i=$(( i + 1)); select_store_size 5000 5000 1000 1000 20000; [ "$SELECTED_STORAGE_SIZE_MB" -eq 9000 ] || echo "fail: $SELECTED_STORAGE_SIZE_MB"
echo "test $i"; i=$(( i + 1)); select_store_size 30000 10000 1000 1000 20000; [ "$SELECTED_STORAGE_SIZE_MB" -eq 20000 ] || echo "fail: $SELECTED_STORAGE_SIZE_MB"
echo "test $i"; i=$(( i + 1)); select_store_size 30000 0 1000 1000 20000; [ "$SELECTED_STORAGE_SIZE_MB" -eq 20000 ] || echo "fail: $SELECTED_STORAGE_SIZE_MB"
echo "test $i"; i=$(( i + 1)); select_store_size 1000 2000 1000 1000 20000; [ "$SELECTED_STORAGE_SIZE_MB" -eq 2000 ] || echo "fail: $SELECTED_STORAGE_SIZE_MB"
echo "test $i"; i=$(( i + 1)); select_store_size 1000 0 1000 1000 20000; [ "$SELECTED_STORAGE_SIZE_MB" -eq 1000 ] || echo "fail: $SELECTED_STORAGE_SIZE_MB"
echo "test $i"; i=$(( i + 1)); select_store_size 500 0 1000 1000 20000; [ "$SELECTED_STORAGE_SIZE_MB" -eq 1000 ] || echo "fail: $SELECTED_STORAGE_SIZE_MB"
exit 0
fi
# Check we are in right folder
if ! [ -f "./run_node.sh" ]; then
>&2 echo "This script must be run from inside the 'nwaku-compose' folder"
exit 1
fi
# check if STORAGE_SIZE is already specified
if [ -f "./.env" ]; then
. ./.env
if [ -n "$STORAGE_SIZE" ]; then
>&2 echo "STORAGE_SIZE is specified in .env file, doing nothing"
exit 0
fi
fi
SUDO=""
PGSQL_SIZE_MB=0
if [ -d "./postgresql" ]; then
# Check if we need to use SUDO moving forward
if [ "$(ls postgresql/* 2>&1 | grep -c "Permission denied")" ]; then
SUDO="sudo"
fi
PGSQL_SIZE_MB=$($SUDO du -sm "./postgresql" | awk '{ print $1 }' | sed 's/^\([0-9]\+\)M$/\1/')
fi
AVAIL_SPACE_MB=$(df -m . | tail -1 | awk '{ print $4 }' | sed 's/^\([0-9]\+\)M$/\1/')
# Select a store size with the following constraints:
# - Margin: 1GB - 1GB will be left over for the system and logs
# - Min: 1GB - The minimum allocated space will be 1GB (old default)
# - Max: 30GB - The maximum allocated space will be 30GB
select_store_size $AVAIL_SPACE_MB $PGSQL_SIZE_MB 1024 1024 $(( 30 * 1024 ))
if [ -z "$SELECTED_STORAGE_SIZE_MB" ]; then
>&2 echo "Failed to selected a storage size"
exit 1
fi
if [ "$1" = "echo-value" ]; then
echo ${SELECTED_STORAGE_SIZE_MB}MB
else
echo "STORAGE_SIZE=${SELECTED_STORAGE_SIZE_MB}MB" >> .env
fi