services/backup/backup.sh

#!/usr/bin/env sh

set -e

set -a
. "/opt/services/backup/.env"
. "/opt/services/backup/.secret.env"
set +a

hc_url="https://hc-ping.com/$HC_UID"

curl -fsSL --retry 3 "$hc_url/start" >/dev/null
duration_start=$(date +%s)

BACKUP_LOCATION="/tmp/backup-misc"

rm -rf "$BACKUP_LOCATION"
mkdir -p "$BACKUP_LOCATION"
cd "$BACKUP_LOCATION" || exit

_hc_fail () {
	curl -fsSL --retry 3 "$hc_url/fail"
	exit 1
}

_backup_prepare_postgres () {
	mkdir -p "$BACKUP_LOCATION/postgres"
	cd "$BACKUP_LOCATION/postgres" || exit

	postgres_tables=$(sudo -u postgres psql -Atc "SELECT datname FROM pg_database WHERE datistemplate = false;")

	for i in $postgres_tables
	do
		echo "dumping $i"
		sudo -u postgres pg_dump "$i" | gzip >"pg_dump_$i.gz"
		echo "done with $i"
		echo ""
	done

	echo "dumping all"
	sudo -u postgres pg_dumpall | gzip >"pg_dumpall.gz"
}

_backup_prepare_mailcow () {
	export MAILCOW_BACKUP_LOCATION="$BACKUP_LOCATION/mailcow"
	mkdir -p "$MAILCOW_BACKUP_LOCATION"
	/opt/mailcow-dockerized/helper-scripts/backup_and_restore.sh \
		backup all --delete-days 3
}

echo ""
echo "preparing postgres"
time _backup_prepare_postgres >/tmp/backup-postgres.log || _hc_fail
echo ""
echo "preparing mailcow"
time _backup_prepare_mailcow >/tmp/backup-mailcow.log || _hc_fail

cd /opt/services/backup/
docker compose run --rm backup || _hc_fail

duration_end=$(date +%s)
curl -fsSL --retry 3 "$hc_url"

duration=$((duration_end - duration_start))
curl -fsSL --retry 3 "https://status.serguzim.me/api/push/$UPTIME_KUMA_TOKEN?status=up&msg=OK&ping=${duration}000"