Comment 2 for bug 1732725

Hi Seth,

Sure, no problem. Here are the mount rules for start:

 # ignore DENIED message on / remount
  deny mount options=(ro, remount) -> /,
  deny mount options=(ro, remount, silent) -> /,

  # allow tmpfs mounts everywhere
  mount fstype=tmpfs,

  # allow hugetlbfs mounts everywhere
  mount fstype=hugetlbfs,

  # allow mqueue mounts everywhere
  mount fstype=mqueue,

  # allow fuse mounts everywhere
  mount fstype=fuse,
  mount fstype=fuse.*,

  # deny writes in /proc/sys/fs but allow binfmt_misc to be mounted
  mount fstype=binfmt_misc -> /proc/sys/fs/binfmt_misc/,

  # allow efivars to be mounted, writing to it will be blocked though
  mount fstype=efivarfs -> /sys/firmware/efi/efivars/,

  mount fstype=fusectl -> /sys/fs/fuse/connections/,
  mount fstype=securityfs -> /sys/kernel/security/,
  mount fstype=debugfs -> /sys/kernel/debug/,
  deny mount fstype=debugfs -> /var/lib/ureadahead/debugfs/,
  mount fstype=proc -> /proc/,
  mount fstype=sysfs -> /sys/,
  mount options=(rw, nosuid, nodev, noexec, remount) -> /sys/,

  # note, /sys/kernel/security/** handled below
  mount options=(move) /sys/fs/cgroup/cgmanager/ -> /sys/fs/cgroup/cgmanager.lower/,
  mount options=(ro, nosuid, nodev, noexec, remount, strictatime) -> /sys/fs/cgroup/,

  # allow paths to be made slave, shared, private or unbindable
  # FIXME: This currently doesn't work due to the apparmor parser treating those as allowing all mounts.
# mount options=(rw,make-slave) -> **,
# mount options=(rw,make-rslave) -> **,
# mount options=(rw,make-shared) -> **,
# mount options=(rw,make-rshared) -> **,
# mount options=(rw,make-private) -> **,
# mount options=(rw,make-rprivate) -> **,
# mount options=(rw,make-unbindable) -> **,
# mount options=(rw,make-runbindable) -> **,

  # allow bind-mounts of anything except /proc, /sys and /dev
  mount options=(rw,bind) /[^spd]*{,/**},
  mount options=(rw,bind) /d[^e]*{,/**},
  mount options=(rw,bind) /de[^v]*{,/**},
  mount options=(rw,bind) /dev/.[^l]*{,/**},
  mount options=(rw,bind) /dev/.l[^x]*{,/**},
  mount options=(rw,bind) /dev/.lx[^c]*{,/**},
  mount options=(rw,bind) /dev/.lxc?*{,/**},
  mount options=(rw,bind) /dev/[^.]*{,/**},
  mount options=(rw,bind) /dev?*{,/**},
  mount options=(rw,bind) /p[^r]*{,/**},
  mount options=(rw,bind) /pr[^o]*{,/**},
  mount options=(rw,bind) /pro[^c]*{,/**},
  mount options=(rw,bind) /proc?*{,/**},
  mount options=(rw,bind) /s[^y]*{,/**},
  mount options=(rw,bind) /sy[^s]*{,/**},
  mount options=(rw,bind) /sys?*{,/**},

  # allow moving mounts except for /proc, /sys and /dev
  mount options=(rw,move) /[^spd]*{,/**},
  mount options=(rw,move) /d[^e]*{,/**},
  mount options=(rw,move) /de[^v]*{,/**},
  mount options=(rw,move) /dev/.[^l]*{,/**},
  mount options=(rw,move) /dev/.l[^x]*{,/**},
  mount options=(rw,move) /dev/.lx[^c]*{,/**},
  mount options=(rw,move) /dev/.lxc?*{,/**},
  mount options=(rw,move) /dev/[^.]*{,/**},
  mount options=(rw,move) /dev?*{,/**},
  mount options=(rw,move) /p[^r]*{,/**},
  mount options=(rw,move) /pr[^o]*{,/**},
  mount options=(rw,move) /pro[^c]*{,/**},
  mount options=(rw,move) /proc?*{,/**},
  mount options=(rw,move) /s[^y]*{,/**},
  mount options=(rw,move) /sy[^s]*{,/**},
  mount options=(rw,move) /sys?*{,/**},

  ### Feature: cgroup namespace
  mount fstype=cgroup -> /sys/fs/cgroup/**,

  mount options=(rw,make-slave) -> **,
  mount options=(rw,make-rslave) -> **,
  mount options=(rw,make-shared) -> **,
  mount options=(rw,make-rshared) -> **,
  mount options=(rw,make-private) -> **,
  mount options=(rw,make-rprivate) -> **,
  mount options=(rw,make-unbindable) -> **,
  mount options=(rw,make-runbindable) -> **,

  mount options=(rw,bind),
  mount options=(rw,rbind),