committing changes in /etc made by "apt install snapd"

Packages with configuration changes:
+snapd 2.49-1+rpi1+deb11u1 armhf

Package changes:
+snapd 2.49-1+rpi1+deb11u1 armhf
+squashfs-tools 1:4.4-2+deb11u2 armhf

.etckeeper

@@ -521,6 +521,7 @@ maybe chmod 0644 'apparmor.d/local/usr.lib.libreoffice.program.oosplash'
 maybe chmod 0644 'apparmor.d/local/usr.lib.libreoffice.program.senddoc'
 maybe chmod 0644 'apparmor.d/local/usr.lib.libreoffice.program.soffice.bin'
 maybe chmod 0644 'apparmor.d/local/usr.lib.libreoffice.program.xpdfimport'
+maybe chmod 0644 'apparmor.d/local/usr.lib.snapd.snap-confine.real'
 maybe chmod 0644 'apparmor.d/local/usr.sbin.chronyd'
 maybe chmod 0644 'apparmor.d/local/usr.sbin.cups-browsed'
 maybe chmod 0644 'apparmor.d/local/usr.sbin.cupsd'
@@ -553,6 +554,7 @@ maybe chmod 0644 'apparmor.d/usr.lib.libreoffice.program.oosplash'
 maybe chmod 0644 'apparmor.d/usr.lib.libreoffice.program.senddoc'
 maybe chmod 0644 'apparmor.d/usr.lib.libreoffice.program.soffice.bin'
 maybe chmod 0644 'apparmor.d/usr.lib.libreoffice.program.xpdfimport'
+maybe chmod 0644 'apparmor.d/usr.lib.snapd.snap-confine.real'
 maybe chmod 0644 'apparmor.d/usr.sbin.chronyd'
 maybe chmod 0644 'apparmor.d/usr.sbin.cups-browsed'
 maybe chmod 0644 'apparmor.d/usr.sbin.cupsd'
@@ -566,6 +568,7 @@ maybe chmod 0444 'apt/apt.conf.d/01autoremove-kernels'
 maybe chmod 0644 'apt/apt.conf.d/05etckeeper'
 maybe chmod 0644 'apt/apt.conf.d/20listchanges'
 maybe chmod 0644 'apt/apt.conf.d/20packagekit'
+maybe chmod 0644 'apt/apt.conf.d/20snapd.conf'
 maybe chmod 0644 'apt/apt.conf.d/50raspi'
 maybe chmod 0644 'apt/apt.conf.d/70debconf'
 maybe chmod 0755 'apt/auth.conf.d'
@@ -2191,6 +2194,7 @@ maybe chmod 0755 'ppp/ip-up.d/chrony'
 maybe chmod 0644 'profile'
 maybe chmod 0755 'profile.d'
 maybe chmod 0644 'profile.d/Z97-byobu.sh'
+maybe chmod 0644 'profile.d/apps-bin-path.sh'
 maybe chmod 0644 'profile.d/at-dbus-fix.sh'
 maybe chmod 0644 'profile.d/bash_completion.sh'
 maybe chmod 0644 'profile.d/gawk.csh'
@@ -2420,6 +2424,7 @@ maybe chmod 0755 'systemd/system'
 maybe chmod 0644 'systemd/system.conf'
 maybe chmod 0644 'systemd/system/autologin@.service'
 maybe chmod 0755 'systemd/system/bluetooth.target.wants'
+maybe chmod 0755 'systemd/system/cloud-final.service.wants'
 maybe chmod 0755 'systemd/system/default.target.wants'
 maybe chmod 0755 'systemd/system/dev-serial1.device.wants'
 maybe chmod 0755 'systemd/system/dhcpcd.service.d'
@@ -2513,6 +2518,7 @@ maybe chmod 0644 'xdg/autostart/onboard-autostart.desktop'
 maybe chmod 0755 'xdg/autostart/pprompt.desktop'
 maybe chmod 0644 'xdg/autostart/print-applet.desktop'
 maybe chmod 0644 'xdg/autostart/pulseaudio.desktop'
+maybe chmod 0644 'xdg/autostart/snap-userd-autostart.desktop'
 maybe chmod 0644 'xdg/autostart/vnc_xrandr.desktop'
 maybe chmod 0644 'xdg/autostart/xcompmgr.desktop'
 maybe chmod 0644 'xdg/autostart/xdg-user-dirs.desktop'

apparmor.d/usr.lib.snapd.snap-confine.real

@@ -0,0 +1,589 @@
+# Author: Jamie Strandboge <jamie@canonical.com>
+#include <tunables/global>
+
+/usr/lib/snapd/snap-confine (attach_disconnected) {
+    # Include any additional files that snapd chose to generate.
+    # - for $HOME on NFS
+    # - for $HOME on encrypted media
+    #
+    # Those are discussed on https://forum.snapcraft.io/t/snapd-vs-upstream-kernel-vs-apparmor
+    # and https://forum.snapcraft.io/t/snaps-and-nfs-home/
+    #include "/var/lib/snapd/apparmor/snap-confine"
+
+    # We run privileged, so be fanatical about what we include and don't use
+    # any abstractions
+    /etc/ld.so.cache r,
+    /etc/ld.so.preload r,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}ld-*.so mrix,
+    # libc, you are funny
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libc{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libpthread{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libreadline{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}librt{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libgcc_s.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libncursesw{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libresolv{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libselinux.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libpcre{,2}{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libmount.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libblkid.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libuuid.so* mr,
+    # normal libs in order
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libapparmor.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libcgmanager.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libdl{,-[0-9]*}.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libnih.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libnih-dbus.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libdbus-1.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libudev.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libseccomp.so* mr,
+    /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libcap.so* mr,
+
+    /usr/lib/snapd/snap-confine mr,
+
+    # This rule is needed when executing from a "base: core" devmode snap on 
+    # UC18 and newer where the /usr/lib/snapd/snap-confine inside the 
+    # "base: core" mount namespace always comes from the snapd snap, and thus
+    # we will execute snap-confine via this path, and thus need to be able to
+    # read this path when executing. It's also necessary on classic where both
+    # the snapd and the core snap are installed at the same time.
+    # TODO: remove this rule when we stop supporting executing other snaps from
+    # inside devmode snaps, ideally even in the short term we would only include
+    # this rule on core only, and specifically uc18 and newer where we need it
+    #@VERBATIM_LIBEXECDIR_SNAP_CONFINE@ mr,
+
+    /dev/null rw,
+    /dev/full rw,
+    /dev/zero rw,
+    /dev/random r,
+    /dev/urandom r,
+    /dev/pts/[0-9]* rw,
+    /dev/tty rw,
+
+    # cgroup: devices
+    capability sys_admin,
+    capability dac_read_search,
+    capability dac_override,
+    /sys/fs/cgroup/ r,
+    /sys/fs/cgroup/devices/ r,
+    /sys/fs/cgroup/devices/snap.*/ rw,
+    /sys/fs/cgroup/devices/snap.*/cgroup.procs w,
+    /sys/fs/cgroup/devices/snap.*/devices.{allow,deny} w,
+
+    # cgroup: freezer
+    # Allow creating per-snap cgroup freezers and adding snap command (task)
+    # invocations to the freezer. This allows for reliably enumerating all
+    # running processes for the snap. In addition, allow enumerating processes
+    # in the cgroup to determine if it is occupied.
+    /sys/fs/cgroup/freezer/ r,
+    /sys/fs/cgroup/freezer/snap.*/ w,
+    /sys/fs/cgroup/freezer/snap.*/cgroup.procs rw,
+
+    # querying udev
+    /etc/udev/udev.conf r,
+    /sys/**/uevent r,
+    /run/udev/** rw,
+    /{,usr/}bin/tr ixr,
+    /usr/lib/locale/** r,
+    /usr/lib/@{multiarch}/gconv/gconv-modules r,
+    /usr/lib/@{multiarch}/gconv/gconv-modules.cache r,
+
+    # priv dropping
+    capability setuid,
+    capability setgid,
+
+    # changing profile
+    @{PROC}/[0-9]*/attr/{,apparmor/}exec w,
+    # Reading current profile
+    @{PROC}/[0-9]*/attr/{,apparmor/}current r,
+    # Reading available filesystems
+    @{PROC}/filesystems r,
+
+    # To find where apparmor is mounted
+    @{PROC}/[0-9]*/mounts r,
+    # To find if apparmor is enabled
+    /sys/module/apparmor/parameters/enabled r,
+
+    # Don't allow changing profile to unconfined or profiles that start with
+    # '/'. Use 'unsafe' to support snap-exec on armhf and its reliance on
+    # the environment for determining the capabilities of the architecture.
+    # 'unsafe' is ok here because the kernel will have already cleared the
+    # environment as part of launching snap-confine with CAP_SYS_ADMIN. This
+    # does leave directories as configured by ld.so.preload as well as
+    # LD_PRELOAD to be set to a library which is in a directory configured by
+    # ld.so.conf, but access to those locations is mediated by this profile
+    # (which requires rules for specific locations).
+    change_profile unsafe /** -> [^u/]**,
+    change_profile unsafe /** -> u[^n]**,
+    change_profile unsafe /** -> un[^c]**,
+    change_profile unsafe /** -> unc[^o]**,
+    change_profile unsafe /** -> unco[^n]**,
+    change_profile unsafe /** -> uncon[^f]**,
+    change_profile unsafe /** -> unconf[^i]**,
+    change_profile unsafe /** -> unconfi[^n]**,
+    change_profile unsafe /** -> unconfin[^e]**,
+    change_profile unsafe /** -> unconfine[^d]**,
+    change_profile unsafe /** -> unconfined?**,
+
+    # allow changing to a few not caught above
+    change_profile unsafe /** -> {u,un,unc,unco,uncon,unconf,unconfi,unconfin,unconfine},
+
+    # LP: #1446794 - when this bug is fixed, change the above to:
+    # deny change_profile unsafe /** -> {unconfined,/**},
+    # change_profile unsafe /** -> **,
+
+    # reading seccomp filters
+    /{tmp/snap.rootfs_*/,}var/lib/snapd/seccomp/bpf/*.bin r,
+
+    # LP: #1668659 and parallel instaces of classic snaps
+    mount options=(rw rbind) /snap/ -> /snap/,
+    mount options=(rw rshared) -> /snap/,
+    mount options=(rw rbind) /var/lib/snapd/snap/ -> /var/lib/snapd/snap/,
+    mount options=(rw rshared) -> /var/lib/snapd/snap/,
+
+    # boostrapping the mount namespace
+    mount options=(rw rshared) -> /,
+    mount options=(rw bind) /tmp/snap.rootfs_*/ -> /tmp/snap.rootfs_*/,
+    mount options=(rw unbindable) -> /tmp/snap.rootfs_*/,
+    # the next line is for classic system
+    mount options=(rw rbind) /snap/*/*/ -> /tmp/snap.rootfs_*/,
+    # the next line is for core system
+    mount options=(rw rbind) / -> /tmp/snap.rootfs_*/,
+    # all of the constructed rootfs is a rslave
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/,
+    # bidirectional mounts (for both classic and core)
+    # NOTE: this doesn't capture the MERGED_USR configuration option so that
+    # when a distro with merged /usr and / that uses apparmor shows up it
+    # should be handled here.
+    /{,run/}media/ w,
+    mount options=(rw rbind) /{,run/}media/ -> /tmp/snap.rootfs_*/{,run/}media/,
+    /run/netns/ w,
+    mount options=(rw rbind) /run/netns/ -> /tmp/snap.rootfs_*/run/netns/,
+    # unidirectional mounts (only for classic system)
+    mount options=(rw rbind) /dev/ -> /tmp/snap.rootfs_*/dev/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/dev/,
+
+    mount options=(rw rbind) /etc/ -> /tmp/snap.rootfs_*/etc/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/etc/,
+
+    mount options=(rw rbind) /home/ -> /tmp/snap.rootfs_*/home/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/home/,
+
+    mount options=(rw rbind) /root/ -> /tmp/snap.rootfs_*/root/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/root/,
+
+    mount options=(rw rbind) /proc/ -> /tmp/snap.rootfs_*/proc/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/proc/,
+
+    mount options=(rw rbind) /sys/ -> /tmp/snap.rootfs_*/sys/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/sys/,
+
+    mount options=(rw rbind) /tmp/ -> /tmp/snap.rootfs_*/tmp/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/tmp/,
+
+    mount options=(rw rbind) /var/lib/dhcp/ -> /tmp/snap.rootfs_*/var/lib/dhcp/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/var/lib/dhcp/,
+
+    mount options=(rw rbind) /var/lib/snapd/ -> /tmp/snap.rootfs_*/var/lib/snapd/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/var/lib/snapd/,
+
+    mount options=(rw rbind) /var/snap/ -> /tmp/snap.rootfs_*/var/snap/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/var/snap/,
+
+    mount options=(rw rbind) /var/tmp/ -> /tmp/snap.rootfs_*/var/tmp/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/var/tmp/,
+
+    mount options=(rw rbind) /run/ -> /tmp/snap.rootfs_*/run/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/run/,
+
+    mount options=(rw rbind) /var/lib/extrausers/ -> /tmp/snap.rootfs_*/var/lib/extrausers/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/var/lib/extrausers/,
+
+    mount options=(rw rbind) {,/usr}/lib{,32,64,x32}/modules/ -> /tmp/snap.rootfs_*{,/usr}/lib/modules/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*{,/usr}/lib/modules/,
+
+    mount options=(rw rbind) {,/usr}/lib{,32,64,x32}/firmware/ -> /tmp/snap.rootfs_*{,/usr}/lib/firmware/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*{,/usr}/lib/firmware/,
+
+    mount options=(rw rbind) /var/log/ -> /tmp/snap.rootfs_*/var/log/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/var/log/,
+
+    mount options=(rw rbind) /usr/src/ -> /tmp/snap.rootfs_*/usr/src/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/usr/src/,
+
+    mount options=(rw rbind) /mnt/ -> /tmp/snap.rootfs_*/mnt/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/mnt/,
+
+    # allow making host snap-exec available inside base snaps
+    mount options=(rw bind) /usr/lib/snapd/ -> /tmp/snap.rootfs_*/usr/lib/snapd/,
+    mount options=(rw slave) -> /tmp/snap.rootfs_*/usr/lib/snapd/,
+
+    # allow making re-execed host snap-exec available inside base snaps
+    mount options=(ro bind) /snap/core/*/usr/lib/snapd/ -> /tmp/snap.rootfs_*/usr/lib/snapd/,
+    # allow making snapd snap tools available inside base snaps
+    mount options=(ro bind) /snap/snapd/*/usr/lib/snapd/ -> /tmp/snap.rootfs_*/usr/lib/snapd/,
+
+    mount options=(rw bind) /usr/bin/snapctl -> /tmp/snap.rootfs_*/usr/bin/snapctl,
+    mount options=(rw slave) -> /tmp/snap.rootfs_*/usr/bin/snapctl,
+
+    # /etc/alternatives (classic and normal mode)
+    mount options=(rw bind) /snap/*/*/etc/alternatives/ -> /tmp/snap.rootfs_*/etc/alternatives/,
+    mount options=(rw bind) /snap/*/*/etc/ssl/ -> /tmp/snap.rootfs_*/etc/ssl/,
+    mount options=(rw bind) /snap/*/*/etc/nsswitch.conf -> /tmp/snap.rootfs_*/etc/nsswitch.conf,
+    mount options=(rw bind) /snap/*/*/etc/apparmor/ -> /tmp/snap.rootfs_*/etc/apparmor/,
+    mount options=(rw bind) /snap/*/*/etc/apparmor.d/ -> /tmp/snap.rootfs_*/etc/apparmor.d/,
+
+    # /etc/alternatives (core/legacy mode)
+    mount options=(rw bind) /etc/alternatives/ -> /tmp/snap.rootfs_*/etc/alternatives/,
+
+    # making all those directories slave shared.
+    mount options=(rw slave) -> /tmp/snap.rootfs_*/etc/alternatives/,
+    mount options=(rw slave) -> /tmp/snap.rootfs_*/etc/ssl/,
+    mount options=(rw slave) -> /tmp/snap.rootfs_*/etc/nsswitch.conf,
+    mount options=(rw slave) -> /tmp/snap.rootfs_*/etc/apparmor/,
+    mount options=(rw slave) -> /tmp/snap.rootfs_*/etc/apparmor.d/,
+
+    # the /snap directory
+    mount options=(rw rbind) /snap/ -> /tmp/snap.rootfs_*/snap/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/snap/,
+    # pivot_root preparation and execution
+    mount options=(rw bind) /tmp/snap.rootfs_*/var/lib/snapd/hostfs/ -> /tmp/snap.rootfs_*/var/lib/snapd/hostfs/,
+    mount options=(rw private) -> /tmp/snap.rootfs_*/var/lib/snapd/hostfs/,
+
+    # pivot_root mediation in AppArmor is not complete. See LP: #1791711.
+    # However, we can mediate the new_root and put_old to be what we expect,
+    # and then deny directory creation within old_root to prevent trivial
+    # pivoting into a whitelisted path.
+    pivot_root oldroot=/tmp/snap.rootfs_*/var/lib/snapd/hostfs/ /tmp/snap.rootfs_*/,
+    # Explicitly deny creating the old_root directory in case it is
+    # inadvertently added somewhere else. While this doesn't resolve
+    # LP: #1791711, it provides some hardening.
+    audit deny /tmp/snap.rootfs_*/{var/,var/lib/,var/lib/snapd/,var/lib/snapd/hostfs/} w,
+
+    # cleanup
+    umount /var/lib/snapd/hostfs/tmp/snap.rootfs_*/,
+    umount /var/lib/snapd/hostfs/sys/,
+    umount /var/lib/snapd/hostfs/dev/,
+    umount /var/lib/snapd/hostfs/proc/,
+    mount options=(rw rslave) -> /var/lib/snapd/hostfs/,
+
+    # Hide /writable from view of snaps.
+    mount options=(rprivate) -> /{,var/lib/snapd/hostfs/}writable/,
+    umount /{,var/lib/snapd/hostfs/}writable/,
+
+    # set up user mount namespace
+    mount options=(rslave) -> /,
+
+    # set up mount namespace for parallel instances of classic snaps
+    mount options=(rw rbind) /snap/{,*/} -> /snap/{,*/},
+    mount options=(rslave) -> /snap/,
+    mount options=(rslave) -> /var/snap/,
+    mount options=(rw rbind) /var/snap/{,*/} -> /var/snap/{,*/},
+    mount options=(rw rshared) -> /var/snap/,
+
+    # Allow reading the os-release file (possibly a symlink to /usr/lib).
+    /{etc/,usr/lib/}os-release r,
+
+    # Allow creating /var/lib/snapd/hostfs, if missing
+    /var/lib/snapd/hostfs/ rw,
+
+    # set up snap-specific private /tmp dir
+    capability chown,
+    /tmp/ rw,
+    /tmp/snap.*/ rw,
+    /tmp/snap.*/tmp/ rw,
+    mount options=(rw private) ->  /tmp/,
+    mount options=(rw bind) /tmp/snap.*/tmp/ -> /tmp/,
+    mount fstype=devpts options=(rw) devpts -> /dev/pts/,
+    mount options=(rw bind) /dev/pts/ptmx -> /dev/ptmx,     # for bind mounting
+    mount options=(rw bind) /dev/pts/ptmx -> /dev/pts/ptmx, # for bind mounting under LXD
+    # Workaround for LP: #1584456 on older kernels that mistakenly think
+    # /dev/pts/ptmx needs a trailing '/'
+    mount options=(rw bind) /dev/pts/ptmx/ -> /dev/ptmx/,
+    mount options=(rw bind) /dev/pts/ptmx/ -> /dev/pts/ptmx/,
+
+    # for running snaps on classic
+    /snap/ r,
+    /snap/** r,
+    /snap/ r,
+    /snap/** r,
+
+    # NOTE: at this stage the /snap directory is stable as we have called
+    # pivot_root already.
+
+    # nvidia handling, glob needs /usr/** and the launcher must be
+    # able to bind mount the nvidia dir
+    /sys/module/nvidia/version r,
+    /sys/**/drivers/nvidia{,_*}/* r,
+    /sys/**/nvidia*/uevent r,
+    /sys/module/nvidia{,_*}/* r,
+    /dev/nvidia[0-9]* r,
+    /dev/nvidiactl r,
+    /dev/nvidia-uvm r,
+    /usr/** r,
+    mount options=(rw bind) /usr/lib{,32}/nvidia-*/ -> /{tmp/snap.rootfs_*/,}var/lib/snapd/lib/gl{,32}/,
+    mount options=(rw bind) /usr/lib{,32}/nvidia-*/ -> /{tmp/snap.rootfs_*/,}var/lib/snapd/lib/gl{,32}/,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/gl{,32}/{,*} w,
+    mount fstype=tmpfs options=(rw nodev noexec) none -> /tmp/snap.rootfs_*/var/lib/snapd/lib/gl{,32}/,
+    mount options=(remount ro bind) -> /tmp/snap.rootfs_*/var/lib/snapd/lib/gl{,32}/,
+
+    # Vulkan support
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/vulkan/{,*} w,
+    mount fstype=tmpfs options=(rw nodev noexec) none -> /tmp/snap.rootfs_*/var/lib/snapd/lib/vulkan/,
+    mount options=(remount ro bind) -> /tmp/snap.rootfs_*/var/lib/snapd/lib/vulkan/,
+
+    # GLVND EGL vendor
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/glvnd/{,*} w,
+    mount fstype=tmpfs options=(rw nodev noexec) none -> /tmp/snap.rootfs_*/var/lib/snapd/lib/glvnd/,
+    mount options=(remount ro bind) -> /tmp/snap.rootfs_*/var/lib/snapd/lib/glvnd/,
+
+    # create gl dirs as needed
+    /tmp/snap.rootfs_*/ r,
+    /tmp/snap.rootfs_*/var/ r,
+    /tmp/snap.rootfs_*/var/lib/ r,
+    /tmp/snap.rootfs_*/var/lib/snapd/ r,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/ r,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/gl{,32}/ r,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/gl{,32}/** rw,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/vulkan/ r,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/vulkan/** rw,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/glvnd/ r,
+    /tmp/snap.rootfs_*/var/lib/snapd/lib/glvnd/** rw,
+
+    # for chroot on steroids, we use pivot_root as a better chroot that makes
+    # apparmor rules behave the same on classic and outside of classic.
+
+    # for creating the user data directories: ~/snap, ~/snap/<name> and
+    # ~/snap/<name>/<version>
+    / r,
+    @{HOMEDIRS}/ r,
+    # These should both have 'owner' match but due to LP: #1466234, we can't
+    # yet
+    @{HOME}/ r,
+    @{HOME}/snap/{,*/,*/*/} rw,
+
+    # Special case for *classic* snaps that are used by users with existing dirs
+    # in /var/lib/. Like jenkins, postgresql, mysql, puppet, ...
+    # (see https://forum.snapcraft.io/t/9717)
+    # TODO: this can be removed once we support home-dirs outside of /home
+    #       better
+    /var/ r,
+    /var/lib/ r,
+    # These should both have 'owner' match but due to LP: #1466234, we can't
+    # yet
+    /var/lib/*/ r,
+    /var/lib/*/snap/{,*/,*/*/} rw,
+
+    # for creating the user shared memory directories
+    /{dev,run}/{,shm/} r,
+    # This should both have 'owner' match but due to LP: #1466234, we can't yet
+    /{dev,run}/shm/{,*/,*/*/} rw,
+
+    # for creating the user XDG_RUNTIME_DIR: /run/user, /run/user/UID and
+    # /run/user/UID/<name>
+    /run/user/{,[0-9]*/,[0-9]*/*/} rw,
+
+    # Workaround https://launchpad.net/bugs/359338 until upstream handles
+    # stacked filesystems generally.
+    # encrypted ~/.Private and old-style encrypted $HOME
+    @{HOME}/.Private/ r,
+    @{HOME}/.Private/** mrwlk,
+    # new-style encrypted $HOME
+    @{HOMEDIRS}/.ecryptfs/*/.Private/ r,
+    @{HOMEDIRS}/.ecryptfs/*/.Private/** mrwlk,
+
+    # Allow snap-confine to move to the void, creating it if necessary.
+    /var/lib/snapd/void/ rw,
+
+    # Allow snap-confine to read snap contexts
+    /var/lib/snapd/context/snap.* r,
+
+    # Allow snap-confine to unmount stale mount namespaces.
+    umount /run/snapd/ns/*.mnt,
+    /run/snapd/ns/snap.*.fstab w,
+    # Allow snap-confine to read and write mount namespace information files.
+    /run/snapd/ns/snap.*.info rw,
+    # Required to correctly unmount bound mount namespace.
+    # See LP: #1735459 for details.
+    umount /,
+
+    # support for locking
+    /run/snapd/lock/ rw,
+    /run/snapd/lock/*.lock rwk,
+
+    # support for the mount namespace sharing
+    capability sys_ptrace,
+    # allow snap-confine to read /proc/1/ns/mnt
+    ptrace read peer=unconfined,
+    # https://forum.snapcraft.io/t/custom-kernel-error-on-readlinkat-in-mount-namespace/6097/21
+    ptrace trace peer=unconfined,
+
+    mount options=(rw rbind) /run/snapd/ns/ -> /run/snapd/ns/,
+    mount options=(private) -> /run/snapd/ns/,
+    / rw,
+    /run/ rw,
+    /run/snapd/ rw,
+    /run/snapd/ns/ rw,
+    /run/snapd/ns/*.lock rwk,
+    /run/snapd/ns/*.mnt rw,
+    ptrace (read, readby, tracedby) peer=/usr/lib/snapd/snap-confine//mount-namespace-capture-helper,
+    @{PROC}/*/mountinfo r,
+    capability sys_chroot,
+    capability sys_admin,
+    signal (send, receive) set=(abrt) peer=/usr/lib/snapd/snap-confine,
+    signal (send) set=(int) peer=/usr/lib/snapd/snap-confine//mount-namespace-capture-helper,
+    signal (send, receive) set=(int, alrm, exists) peer=/usr/lib/snapd/snap-confine,
+    signal (receive) set=(exists) peer=/usr/lib/snapd/snap-confine//mount-namespace-capture-helper,
+
+    # workaround for linux 4.13/upstream, see
+    # https://forum.snapcraft.io/t/snapd-2-27-6-2-in-debian-sid-blocked-on-apparmor-in-kernel-4-13-0-1/2813/3
+    ptrace (trace, tracedby) peer=/usr/lib/snapd/snap-confine,
+
+    # Allow reading snap cookies.
+    /var/lib/snapd/cookie/snap.* r,
+
+    # For aa_change_hat() to go into ^mount-namespace-capture-helper
+    @{PROC}/[0-9]*/attr/{,apparmor/}current w,
+
+    # As a special exception allow snap-confine to write to anything in /var/lib.
+    # This code should be changed to allow delegation so that snap-confine can
+    # inherit any file descriptor and pass it to the invoked application but
+    # this is not possible in apparmor yet.
+    # See https://bugs.launchpad.net/snapd/+bug/1815869
+    /var/lib/** rw,
+
+    ^mount-namespace-capture-helper (attach_disconnected) {
+        # We run privileged, so be fanatical about what we include and don't use
+        # any abstractions
+        /etc/ld.so.cache r,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}ld-*.so mrix,
+        # libc, you are funny
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libc{,-[0-9]*}.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libpthread{,-[0-9]*}.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libreadline{,-[0-9]*}.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}librt{,-[0-9]*}.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libgcc_s.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libncursesw{,-[0-9]*}.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libresolv{,-[0-9]*}.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libselinux.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libpcre.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libmount.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libblkid.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libuuid.so* mr,
+        # normal libs in order
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libapparmor.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libcgmanager.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/{,atomics/}}libdl{,-[0-9]*}.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libnih.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libnih-dbus.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libdbus-1.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libudev.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libseccomp.so* mr,
+        /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libcap.so* mr,
+
+        /usr/lib/snapd/snap-confine mr,
+
+        /dev/null rw,
+        /dev/full rw,
+        /dev/zero rw,
+        /dev/random r,
+        /dev/urandom r,
+
+        capability sys_ptrace,
+        capability sys_admin,
+        # This allows us to read and bind mount the namespace file
+        / r,
+        @{PROC}/ r,
+        @{PROC}/*/ r,
+        @{PROC}/*/ns/ r,
+        @{PROC}/*/ns/mnt r,
+        /run/ r,
+        /run/snapd/ r,
+        /run/snapd/ns/ r,
+        /run/snapd/ns/*.mnt rw,
+        # NOTE: the source name is / even though we map /proc/123/ns/mnt
+        mount options=(rw bind) / -> /run/snapd/ns/*.mnt,
+        # This is the SIGALRM that we send and receive if a timeout expires
+        signal (send, receive) set=(alrm) peer=/usr/lib/snapd/snap-confine//mount-namespace-capture-helper,
+        # Those two rules are exactly the same but we don't know if the parent process is still alive
+        # and hence has the appropriate label or is already dead and hence has no label.
+        signal (send) set=(exists) peer=/usr/lib/snapd/snap-confine,
+        signal (send) set=(exists) peer=unconfined,
+        # This is so that we can abort
+        signal (send, receive) set=(abrt) peer=/usr/lib/snapd/snap-confine//mount-namespace-capture-helper,
+        #  This is the signal we get if snap-confine dies (we subscribe to it with prctl)
+        signal (receive) set=(int) peer=/usr/lib/snapd/snap-confine,
+        # This allows snap-confine to be killed from the outside.
+        signal (receive) peer=unconfined,
+        # This allows snap-confine to wait for us
+        ptrace (read, trace, tracedby) peer=/usr/lib/snapd/snap-confine,
+    }
+
+    # Allow snap-confine to be killed
+    signal (receive) peer=unconfined,
+
+    # Allow switching to snap-update-ns with a per-snap profile.
+    change_profile -> snap-update-ns.*,
+
+    # Allow executing snap-update-ns when...
+
+    # ...snap-confine is, conceptually, re-executing and uses snap-update-ns
+    # from the distribution package. This is also the location used when using
+    # the core/base snap on all-snap systems. The variants here represent
+    # various locations of libexecdir across distributions.
+    /usr/lib{,exec,64}/snapd/snap-update-ns r,
+
+    # ...snap-confine is not, conceptually, re-executing and uses
+    # snap-update-ns from the distribution package but we are already inside
+    # the constructed mount namespace so we must traverse "hostfs". The
+    # variants here represent various locations of libexecdir across
+    # distributions.
+    /var/lib/snapd/hostfs/usr/lib{,exec,64}/snapd/snap-update-ns r,
+
+    # ..snap-confine is, conceptually, re-executing and uses snap-update-ns
+    # from the core or snapd snaps. Note that the location of the actual snap
+    # varies from distribution to distribution. The variants here represent
+    # different locations of snap mount directory across distributions.
+    /{,var/lib/snapd/}snap/{core,snapd}/*/usr/lib/snapd/snap-update-ns r,
+
+    # ...snap-confine is, conceptually, re-executing and uses snap-update-ns
+    # from the core snap or snapd snap, but we are already inside the
+    # constructed mount namespace. Here the apparmor kernel module
+    # re-constructs the path to snap-update-ns using the "hostfs" mount entry
+    # rather than the more "natural" /snap mount entry but we have no control
+    # over that.  This is reported as (LP: #1716339). The variants here
+    # represent different locations of snap mount directory across
+    # distributions.
+    /var/lib/snapd/hostfs/{,var/lib/snapd/}snap/{core,snapd}/*/usr/lib/snapd/snap-update-ns r,
+
+    # Allow executing snap-discard-ns, just like the set for snap-update-ns
+    # above but with the key difference that snap-discard-ns does not
+    # have a dedicated profile so we need to inherit snap-confine's profile.
+
+    /usr/lib{,exec,64}/snapd/snap-discard-ns rix,
+    /var/lib/snapd/hostfs/usr/lib{,exec,64}/snapd/snap-discard-ns rix,
+    /{,var/lib/snapd/}snap/{core,snapd}/*/usr/lib/snapd/snap-discard-ns rix,
+    /var/lib/snapd/hostfs/{,var/lib/snapd/}snap/{core,snapd}/*/usr/lib/snapd/snap-discard-ns rix,
+
+    # Allow mounting /var/lib/jenkins from the host into the snap.
+    mount options=(rw rbind) /var/lib/jenkins/ -> /tmp/snap.rootfs_*/var/lib/jenkins/,
+    mount options=(rw rslave) -> /tmp/snap.rootfs_*/var/lib/jenkins/,
+
+    # Suppress noisy file_inherit denials (LP: #1850552) until LP: #1849753 is
+    # fixed.
+    deny /dev/shm/.org.chromium.Chromium.* rw,
+
+    # While snap-confine itself doesn't require unix rules and therefore all
+    # unix rules are implicitly denied, adding an explicit deny for unix to
+    # silence noisy denials breaks nested lxd. Until the cause is determined,
+    # do not use an explicit deny for unix. (LP: #1855355)
+    #deny unix,
+
+    # Explicitly deny these accesses which show up on Arch to silence the
+    # denials for this unneeded access.
+    deny /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libnss_files-[0-9]*.so* mr,
+    deny /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libnss_mymachines.[0-9]*.so* mr,
+    deny /{,usr/}lib{,32,64,x32}/{,@{multiarch}/}libnss_systemd.[0-9]*.so* mr,
+    deny /etc/nsswitch.conf r,
+    deny /etc/passwd r,
+}

apt/apt.conf.d/20snapd.conf

@@ -0,0 +1 @@
+AptCli::Hooks::Install { "[ ! -f /usr/bin/snap ] || /usr/bin/snap advise-snap --from-apt 2>/dev/null || true"; };

mailcap

@@ -161,6 +161,7 @@ application/x-app-package; pi-gpk-install-local-file %s; test=test -n "$DISPLAY"
 application/vnclicense-key; vnclicensehelper -key %s; test=test -n "$DISPLAY"
 application/vnc-shortcut; vncviewer %s; test=test -n "$DISPLAY"
 application/x-scratch3; /usr/lib/scratch3/scratch-desktop %s; test=test -n "$DISPLAY"
+x-scheme-handler/snap; /usr/bin/snap handle-link %s; test=test -n "$DISPLAY"
 application/x-image; squeak %s; test=test -n "$DISPLAY"
 application/squeak-image; squeak %s; test=test -n "$DISPLAY"
 application/squeak-project; squeak %s; test=test -n "$DISPLAY"

profile.d/apps-bin-path.sh

@@ -0,0 +1,22 @@
+# shellcheck shell=sh
+
+# Expand $PATH to include the directory where snappy applications go.
+snap_bin_path="/snap/bin"
+if [ -n "${PATH##*${snap_bin_path}}" ] && [ -n "${PATH##*${snap_bin_path}:*}" ]; then
+    export PATH=$PATH:${snap_bin_path}
+fi
+
+# Ensure base distro defaults xdg path are set if nothing filed up some
+# defaults yet.
+if [ -z "$XDG_DATA_DIRS" ]; then
+    export XDG_DATA_DIRS="/usr/local/share:/usr/share"
+fi
+
+# Desktop files (used by desktop environments within both X11 and Wayland) are
+# looked for in XDG_DATA_DIRS; make sure it includes the relevant directory for
+# snappy applications' desktop files.
+snap_xdg_path="/var/lib/snapd/desktop"
+if [ -n "${XDG_DATA_DIRS##*${snap_xdg_path}}" ] && [ -n "${XDG_DATA_DIRS##*${snap_xdg_path}:*}" ]; then
+    export XDG_DATA_DIRS="${XDG_DATA_DIRS}:${snap_xdg_path}"
+fi
+

systemd/system/cloud-final.service.wants/snapd.seeded.service

@@ -0,0 +1 @@
+/lib/systemd/system/snapd.seeded.service

systemd/system/multi-user.target.wants/snapd.recovery-chooser-trigger.service

@@ -0,0 +1 @@
+/lib/systemd/system/snapd.recovery-chooser-trigger.service

systemd/system/multi-user.target.wants/snapd.seeded.service

@@ -0,0 +1 @@
+/lib/systemd/system/snapd.seeded.service

systemd/system/multi-user.target.wants/snapd.service

@@ -0,0 +1 @@
+/lib/systemd/system/snapd.service

systemd/system/sockets.target.wants/snapd.socket

@@ -0,0 +1 @@
+/lib/systemd/system/snapd.socket

xdg/autostart/snap-userd-autostart.desktop

@@ -0,0 +1,6 @@
+[Desktop Entry]
+Name=Snap user application autostart helper
+Comment=Helper program for launching snap applications that are configured to start automatically.
+Exec=/usr/bin/snap userd --autostart
+Type=Application
+NoDisplay=true