After installing sys-apps/apparmor, sys-libs/libapparmor, sec-policy/apparmor-profiles, and sys-apps/apparmor-utils I added "params += apparmor=1 security=apparmor" to my boot.conf, ran "ego boot update", ran "rc-update add apparmor boot" and rebooted.

apparmor fails on boot and when trying to start it manually with the following errors:

1. /etc/init.d/apparmor start
   /usr/libexec/rc.apparmor.functions: line 131: syntax error near unexpected token `;;'
   /usr/libexec/rc.apparmor.functions: line 131: ` return 2 ;;'

• Starting AppArmor ...
  /etc/init.d/apparmor: line 65: is_apparmor_loaded: command not found
  /etc/init.d/apparmor: line 66: load_module: command not found
• AppArmor kernel support is not present [ !! ]
• ERROR: apparmor failed to start

1. aa-status
   apparmor module is loaded.
   1 profiles are loaded.
   1 profiles are in enforce mode.
   lxd-funtainer_</var/lib/lxd>
   0 profiles are in complain mode.
   0 processes have profiles defined.
   0 processes are in enforce mode.
   0 processes are in complain mode.
   0 processes are unconfined but have a profile defined.