I would add one more general security tip. Always restrict your mapped ports to localhost (as in 127.0.0.1:3306:3306) unless you really want to expose it to the world.
I think it's counterintuitive, but I learned the hard way that 3306:3306 will automatically add a rule to open the firewall on linux and make MySQL publicly accessible.
I think it's counterintuitive, but I learned the hard way that 3306:3306 will automatically add a rule to open the firewall on linux and make MySQL publicly accessible.