DPDK: Validate if creation of vhost_sockets directory is still required in nova-libvirt

[Saravanan KR]

Validate if creation of vhost_sockets directory is still required in nova-libvirt, if required, ensure the new group name (hugetlbfs) is updated to this directory

        # qemu user on host will be cretaed by libvirt package install, ensure
        # the qemu user created with same uid/gid as like libvirt package.
        # These specific values are required since ovs is running on host.
        # Once ovs with DPDK is containerized, we could modify this uid/gid
        # to match with kolla config values.
        - name: ensure qemu group is present on the host
          group:
            name: qemu
            gid: 107
            state: present
        - name: ensure qemu user is present on the host
          user:
            name: qemu
            uid: 107
            group: qemu
            state: present
            shell: /sbin/nologin
            comment: qemu user
        - name: create directory for vhost-user sockets with qemu ownership
          file:
            path: /var/lib/vhost_sockets
            state: directory
            owner: qemu
            group: qemu

[Saravanan KR (skramaja)]

Additional discussion on the BZ - https://bugzilla.redhat.com/show_bug.cgi?id=1549938#c15

Need to set correct selinux type or use command restorecon to set correct types.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/555661

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/555661
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=611830fd7621325fbbea5267492a631312aca767
Submitter: Zuul
Branch: master

commit 611830fd7621325fbbea5267492a631312aca767
Author: Saravanan KR <email address hidden>
Date: Tue Feb 27 17:44:04 2018 +0530

    Apply the vhost group parameter for the vhost_sockets directory creation

    Directory /var/lib/vhost_sockets will be used to create vhost sockets
    which should have the the group name as hugetlbfs, which is common
    between qemu and openvswitch to share the vhost_sockets. And the
    correct selinux context to be applied on the vhost_sockets directory.
    Closes-Bug: #1751711
    Change-Id: Ib917cf86bd9a4ce57af243ab43337ea6c88bf76c

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.openstack.org/559891

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/559891
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=b055eb339b17e1352867a3a082ec6e671f21788a
Submitter: Zuul
Branch: stable/queens

commit b055eb339b17e1352867a3a082ec6e671f21788a
Author: Saravanan KR <email address hidden>
Date: Tue Feb 27 17:44:04 2018 +0530

    Apply the vhost group parameter for the vhost_sockets directory creation

    Directory /var/lib/vhost_sockets will be used to create vhost sockets
    which should have the the group name as hugetlbfs, which is common
    between qemu and openvswitch to share the vhost_sockets. And the
    correct selinux context to be applied on the vhost_sockets directory.
    Closes-Bug: #1751711
    Change-Id: Ib917cf86bd9a4ce57af243ab43337ea6c88bf76c
    (cherry picked from commit 611830fd7621325fbbea5267492a631312aca767)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 9.0.0.0b2 development milestone.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 8.0.2 release.