saving uncommitted changes in /etc prior to apt run

.etckeeper

@@ -86,6 +86,7 @@ maybe chmod 0755 'apt/listchanges.conf.d'
 maybe chmod 0755 'apt/preferences.d'
 maybe chmod 0644 'apt/sources.list'
 maybe chmod 0755 'apt/sources.list.d'
+maybe chmod 0644 'apt/sources.list.d/docker.list'
 maybe chmod 0644 'apt/sources.list.d/raspi.list'
 maybe chmod 0644 'apt/sources.list.d/vscode.list'
 maybe chmod 0644 'apt/trusted.gpg'
@@ -206,6 +207,8 @@ maybe chmod 0644 'dhcp/dhclient-exit-hooks.d/timesyncd'
 maybe chmod 0644 'dhcp/dhclient.conf'
 maybe chgrp 'netdev' 'dhcpcd.conf'
 maybe chmod 0664 'dhcpcd.conf'
+maybe chmod 0755 'docker'
+maybe chmod 0644 'docker/daemon.json'
 maybe chmod 0644 'dphys-swapfile'
 maybe chmod 0755 'dpkg'
 maybe chmod 0644 'dpkg/dpkg.cfg'

apt/sources.list.d/docker.list

@@ -0,0 +1 @@
+deb [arch=armhf signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/raspbian bullseye stable

docker/daemon.json

@@ -0,0 +1,3 @@
+{
+   "data-root": "/docker"
+}