Move all of /var/lib to the persistent data volume

Instead of adding e.g. /var/lib/buildkit in a provisioning script,
it makes more sense to move all of /var/lib to /mnt/data/var/lib.

Similarly buildkit seems to create big subdirectories under /tmp
that look like chroots, so lets move that to the data volume as
well to prevent buildkit from running out of space.

Signed-off-by: Jan Dubois <[email protected]>

Author: jandubois

pkg/cidata/cidata.TEMPLATE.d/boot/05-persistent-data-volume.sh

@@ -7,7 +7,7 @@ set -eux -o pipefail
 test -f /etc/alpine-release || exit 0
 
 # Data directories that should be persisted across reboots
-DATADIRS="/etc/ssh /home /usr/local /etc/containerd /var/lib/containerd"
+DATADIRS="/etc/containerd /etc/ssh /home /tmp /usr/local /var/lib"
 
 # When running from RAM try to move persistent data to data-volume
 # FIXME: the test for tmpfs mounts is probably Alpine-specific