Containerized overcloud means that kvm doesn't work out of the box on ppc64le

[Jeremy Freudberg]

On some non-x86 hosts, most notably the POWER8 variant of ppc64le, kvm requires some additional setup before VMs can be successfully run.

The qemu-kvm package provides a script that does the necessary setup for POWER8 (and some other host architectures) but the script is meant to be run through a systemd service, and we don't have systemd inside containers.

There are easy workarounds (install the qemu-kvm package directly on the host, or execute the script manually, etc.) but it is best to include the invocation of the script in the definition of the container.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/726901

[Jeremy Freudberg (jfreud)]

script is here https://git.centos.org/rpms/qemu-kvm/blob/c8-stream-rhel/f/SOURCES/kvm-setup

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/726901
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=3873d3607542b46d7cd709e4a980888334e6132f
Submitter: Zuul
Branch: master

commit 3873d3607542b46d7cd709e4a980888334e6132f
Author: Jeremy Freudberg <email address hidden>
Date: Mon May 11 12:33:12 2020 -0400

    Execute kvm-setup inside nova_libvirt container

    On POWER8 (and some others), kvm requires some additional setup before
    VMs can be successfully run. There is a script to perform this setup,
    but it is provided as a systemd service -- we don't have systemd inside
    containers, so let's include the invocation of the script in the
    definition of the container.

    Change-Id: I1e7208e4bd1c7f0c87354b6f6963c0d2df86cc02
    Closes-Bug: #1878048

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/train
Review: https://review.opendev.org/727858

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/727858
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=d92443f96eb0c2a70764c3dfbbe0fb074e925e1d
Submitter: Zuul
Branch: stable/train

commit d92443f96eb0c2a70764c3dfbbe0fb074e925e1d
Author: Jeremy Freudberg <email address hidden>
Date: Mon May 11 12:33:12 2020 -0400

    Execute kvm-setup inside nova_libvirt container

    On POWER8 (and some others), kvm requires some additional setup before
    VMs can be successfully run. There is a script to perform this setup,
    but it is provided as a systemd service -- we don't have systemd inside
    containers, so let's include the invocation of the script in the
    definition of the container.

    Change-Id: I1e7208e4bd1c7f0c87354b6f6963c0d2df86cc02
    Closes-Bug: #1878048
    (cherry picked from commit 3873d3607542b46d7cd709e4a980888334e6132f)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 11.4.0 release.