fix: docker sandbox: restore ACLs on start

docker/entrypoint.sh

@@ -8,6 +8,13 @@ else
     test -x /etc/rc.d/sshd && /etc/rc.d/sshd onestart
 fi
 
+# If the container was committed and pushed to a registry and later retrieved,
+# the extended ACLs on the filesystem may have silently disappeared,
+# as the registry storage may not support them.
+# cf https://forums.docker.com/t/setfacl-very-long-setting/131897
+# Ensure we repair/restore them before opening the SSH service:
+/opt/bastion/bin/admin/install --minimal
+
 if [ "$1" = "--sandbox" ]; then
     echo "The Bastion sandbox container is running, you can now connect to its port 22 (probably remapped to another port on the host)"
 fi