sudo ln -s /etc/apparmor.d/usr /etc/apparmor.d/disable/.sbin.mysqld
sudo service apparmor restart

sudo aa-status

... some more output here
2 processes have profiles defined.
1 processes are in enforce mode.
   /usr/sbin/mysqld (1938)
1 processes are in complain mode.
snap.amazon-ssm-agent.amazon-ssm-agent (1295)
0 processes are unconfined but have a profile defined.