backup & restore of firebird

# Backup
docker run \
-v /path/to/directory/with/backup:/db \
docker.kpsys.cz/kpsys/firebird3 \
/usr/local/firebird/bin/gbak -b -v -user SQLKPWIN -password <PASSWORD> /db/<backup-file-name>.fdb /db/<database-file-name>.fbk

# Restore
docker run \
-v /path/to/directory/with/database:/db \
docker.kpsys.cz/kpsys/firebird3 \
/usr/local/firebird/bin/gbak -r -v -p 16384 -user SQLKPWIN -password <PASSWORD> /db/<backup-file-name>.fbk /db/<database-file-name>.fdb