Install and enable AppArmor on all machines.
    
    The default profiles and auditd will be installed by default (unless
    disabled in pillar).
    
    Additional profiles can be added using apparmor pillar data, see
    pillar.example for details.
    
    Note: This might be a candidate for upstreaming to saltstack-formulas on
    github (after some testing, finding out missing parts etc.), therefore I
    used pkg.installed instead of the zypper:packages pillar.