Test volume is not available after reboot

it's a known-limitation, I find there is another BZ or LP somewhere about it already.
the test volume class is really not for production, but for test (hence the class name)... so we don't expect to support reboots.

Feel free to use the solution that I created here:

https://github.com/DeploymentsBook/puppet-deployments/blob/master/manifests/profile/cinder.pp

Fix proposed to branch: master
Review: https://review.openstack.org/465731

Reviewed: https://review.openstack.org/465731
Committed: https://git.openstack.org/cgit/openstack/puppet-cinder/commit/?id=b8f15088b5c3b70ae2c12ecd8185064a0159a6e1
Submitter: Jenkins
Branch: master

commit b8f15088b5c3b70ae2c12ecd8185064a0159a6e1
Author: Alan Bishop <email address hidden>
Date: Wed May 17 15:53:49 2017 -0400

    Restore iscsi loopback LVM volume group on startup

    This change restores the loopback device and LVM volume group used
    by the iscsi driver each time the system restarts. This essentially
    allows the volume group to survive a reboot.

    Closes-Bug: #1581092
    Change-Id: Ifcd74b41d9d14b1c2a176fe9994a3927ae2a552a

This issue was fixed in the openstack/puppet-cinder 11.1.0 release.

It's been reported that the fix didn't completely fix the issue, so reopening this bug

Fix proposed to branch: master
Review: https://review.openstack.org/597202

Reviewed: https://review.openstack.org/597202
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=2040d4f284b1507abb8fb4013ea5a162a9cf96e2
Submitter: Zuul
Branch: master

commit 2040d4f284b1507abb8fb4013ea5a162a9cf96e2
Author: Alan Bishop <email address hidden>
Date: Tue Aug 28 14:27:57 2018 -0400

    Recreate cinder LVM loopback device on startup

    Add a systemd service that creates the loopback device required by
    cinder's iSCSI backend on system startup.

    This patch also consolidates the host_prep_tasks for the HA and non-HA
    versions of the cinder-volume service. The list of tasks is identical,
    and rather than repeating it in each template, the tasks are defined
    once in cinder-common.yaml.

    Closes-Bug: #1581092
    Change-Id: Icc04003a9e90b66720d968c6c8f1c687156b677e

Fix proposed to branch: stable/rocky
Review: https://review.openstack.org/612185

Reviewed: https://review.openstack.org/612185
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=5ef1ade75347da10ec09005d7b74a23474acc861
Submitter: Zuul
Branch: stable/rocky

commit 5ef1ade75347da10ec09005d7b74a23474acc861
Author: Alan Bishop <email address hidden>
Date: Tue Aug 28 14:27:57 2018 -0400

    Recreate cinder LVM loopback device on startup

    Add a systemd service that creates the loopback device required by
    cinder's iSCSI backend on system startup.

    This patch also consolidates the host_prep_tasks for the HA and non-HA
    versions of the cinder-volume service. The list of tasks is identical,
    and rather than repeating it in each template, the tasks are defined
    once in cinder-common.yaml.

    NOTE: This backport does not set the 'setype' when creating cinder's
    persistent directories. Setting the 'setype' is required only in later
    releases.

    Closes-Bug: #1581092
    Change-Id: Icc04003a9e90b66720d968c6c8f1c687156b677e
    (cherry picked from commit 2040d4f284b1507abb8fb4013ea5a162a9cf96e2)

Fix proposed to branch: stable/queens
Review: https://review.openstack.org/613646

Reviewed: https://review.openstack.org/613646
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=769d2145357215eb4e3d6b5f730e096a4431fdcc
Submitter: Zuul
Branch: stable/queens

commit 769d2145357215eb4e3d6b5f730e096a4431fdcc
Author: Alan Bishop <email address hidden>
Date: Tue Aug 28 14:27:57 2018 -0400

    Recreate cinder LVM loopback device on startup

    Add a systemd service that creates the loopback device required by
    cinder's iSCSI backend on system startup.

    This patch also consolidates the host_prep_tasks for the HA and non-HA
    versions of the cinder-volume service. The list of tasks is identical,
    and rather than repeating it in each template, the tasks are defined
    once in cinder-common.yaml.

    NOTE: This backport does not set the 'setype' when creating cinder's
    persistent directories. Setting the 'setype' is required only in later
    releases.

    Closes-Bug: #1581092
    Change-Id: Icc04003a9e90b66720d968c6c8f1c687156b677e
    (cherry picked from commit 2040d4f284b1507abb8fb4013ea5a162a9cf96e2)
    (cherry picked from commit 5ef1ade75347da10ec09005d7b74a23474acc861)

This issue was fixed in the openstack/tripleo-heat-templates 10.1.0 release.

This issue was fixed in the openstack/tripleo-heat-templates 8.1.0 release.

This issue was fixed in the openstack/tripleo-heat-templates 9.1.0 release.