Make sure that root is in the sudoers file on Alpine

Because the Alpine cloud image doesn't include /etc/sudoers,
and cloud-init just writes a single line to it:

    #includedir /etc/sudoers.d

Without an entry for root we cannot run user provisioning scripts
because we use `sudo -u $USER …` to do it.

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

Author: jandubois

pkg/cidata/cidata.TEMPLATE.d/boot/00-alpine-user-group.sh

@@ -1,12 +1,21 @@
 #!/bin/sh
-# Remove the user embedded in the image,
-# and use cloud-init for users and groups.
 test -f /etc/alpine-release || exit 0
-test "$LIMA_CIDATA_USER" != "alpine" || exit 0
 
-if [ "$(id -u alpine 2>&1)" = "1000" ]; then
-	userdel alpine
-	rmdir /home/alpine
-	cloud-init clean --logs
-	reboot
+# Make sure that root is in the sudoers file.
+# This is needed to run the user provisioning scripts.
+SUDOERS=/etc/sudoers.d/00-root-user
+if [ ! -f $SUDOERS ]; then
+	echo "root ALL=(ALL) NOPASSWD:ALL" >$SUDOERS
+	chmod 660 $SUDOERS
+fi
+
+# Remove the user embedded in the image,
+# and use cloud-init for users and groups.
+if [ "$LIMA_CIDATA_USER" != "alpine" ]; then
+	if [ "$(id -u alpine 2>&1)" = "1000" ]; then
+		userdel alpine
+		rmdir /home/alpine
+		cloud-init clean --logs
+		reboot
+	fi
 fi