How bad is it to specify credits in crontab?

Question

linux

I want to make database backups every half an hour.
The syntax went something like this:

*/30 * * * * docker exec db mysqldump -u login -p password dbname

Those. login, password, database name are fully disclosed. How bad is this idea, or is this how it's usually done? Despite the fact that only I have the password from the server.

Answer 1

https://stackoverflow.com/questions/9293042/how-to...

Answer 2

https://habr.com/ru/company/southbridge/blog/478930/