Lint hostapp.sh and robust umount (#406)

* Lint hostapp.sh and robust umount

* Update hostapp.sh

* Update Dockerfile

* Update Dockerfile

* Update hassos.mk

* Update hostapp.sh

* Update Dockerfile

* Update hassos.mk

* Update hostapp.sh

* Update hdd-image.sh

* Update entry.sh

scripts/entry.sh

@@ -9,7 +9,8 @@ dockerd -s vfs &> /dev/null &
 # Setup local user
 if [ "${BUILDER_UID:0}" -ne 0 ] && [ "${BUILDER_GID:0}" -ne 0 ]; then
   groupadd -g "${BUILDER_GID}" builder
-  useradd -m -u "${BUILDER_UID}" -g "${BUILDER_GID}" -G docker builder
+  useradd -m -u "${BUILDER_UID}" -g "${BUILDER_GID}" -G docker,sudo builder
+  echo "builder ALL=(ALL:ALL) NOPASSWD: ALL" >> /etc/sudoers
   USER="builder"
 fi