Create account in https://sqlbak.com/ and copy the key (You will need after)
Download sqlBak:
Run: docker run --name sqlbak_container -d -v sqlbak_volume:/opt/sqlbak pranasnet/sqlbak
Run the container with your key
Run: docker exec sqlbak_container sqlbak --register --key=YOUR_KEY_HERE -n sqlbak
Now you need to add a connection to DBMS (MySQL, PostgreSQL, MSSQL Server).
Run: docker exec 9d8a0302a4a3 sqlbak -ac -dt <dbms_type> -h <host> -u <user_name> -p <password>