Comment 2 for bug 2016029

Reviewed: https://review.opendev.org/c/openstack/os-brick/+/880222
Committed: https://opendev.org/openstack/os-brick/commit/16c90d5fe97da04c7c42cbd3fe5505153ce95a91
Submitter: "Zuul (22348)"
Branch: master

commit 16c90d5fe97da04c7c42cbd3fe5505153ce95a91
Author: Gorka Eguileor <email address hidden>
Date: Wed Apr 12 20:23:47 2023 +0200

    NVMe-oF: Create /etc/nvme/hostid

    The NVMe-oF connector currently create the `/etc/nvme/hostnqn` file if
    it doesn't exist, but it may still be missing the `/etc/nvme/hostid`
    value.

    Some distribution packages create the file on installation but others
    may not.

    It is recommended for the file to be present so that nvme doesn't
    randomly generate it.

    Randomly generating it means that the value will be different for the
    same storage array and the same volume if we connect, disconnect, and
    connect the volume again.

    This patch ensures that the file will exist and will try to use the
    system's UUID as reported by DMI or a randomly generated one.

    Closes-Bug: #2016029
    Change-Id: I0b60f9078f23f8464d8234841645ed520e8ba655