#!/usr/bin/env bash
set -e

if [ "$(whoami)" != "postgres" ]; then
  echo -e "This script has to be run as \033[1mpostgres\033[0m user"
  exit 3
fi

DAYS_TO_KEEP=3
DATE=$(date --utc +%F_%H-%M)
BACKUP_DIR=/var/backups/postgresql
BACKUP_FILE=$BACKUP_DIR/backup-$DATE.sql.gz

pg_dump -- lamassu | gzip > $BACKUP_FILE
find $BACKUP_DIR -maxdepth 1 -mtime +$DAYS_TO_KEEP -exec rm -f '{}' ';'