@@ -48,6 +48,11 @@ useradd $STACK_USER -s /bin/bash -d /opt/stack -G libvirtd

 echo $STACK_USER:$GUEST_PASSWORD | chpasswd

 echo "$STACK_USER ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

+# Add an udev rule, so that new block devices could be written by stack user

+cat > /etc/udev/rules.d/50-openstack-blockdev.rules << EOF

+KERNEL=="xvd[b-z]", GROUP="$STACK_USER", MODE="0660"

+EOF

+

 # Give ownership of /opt/stack to stack user

 chown -R $STACK_USER /opt/stack