Puppet Class: tripleo::profile::base::nova::libvirt

Defined in:
manifests/profile/base/nova/libvirt.pp

Overview

Copyright 2016 Red Hat, Inc.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Class: tripleo::profile::base::nova::libvirt

Libvirt profile for tripleo. It will deploy Libvirt service and configure it.

Parameters

step

(Optional) The current step in deployment. See tripleo-heat-templates for more details. Defaults to hiera(‘step’)

libvirtd_config

(Optional) Overrides for libvirtd config options Defaults to {}

virtlogd_config

(Optional) Overrides for virtlogd config options Defaults to {}

tls_password

(Optional) SASL Password for libvirtd TLS connections Defaults to ” (disabled)

Parameters:

  • step (Any) (defaults to: Integer(hiera('step')))
  • libvirtd_config (Any) (defaults to: {})
  • virtlogd_config (Any) (defaults to: {})
  • tls_password (Any) (defaults to: '') 


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# File 'manifests/profile/base/nova/libvirt.pp', line 38

class tripleo::profile::base::nova::libvirt (
  $step = Integer(hiera('step')),
  $libvirtd_config = {},
  $virtlogd_config = {},
  $tls_password    = '',
) {
  include tripleo::profile::base::nova::compute_libvirt_shared

  if $step >= 4 {
    include tripleo::profile::base::nova
    include tripleo::profile::base::nova::migration::client
    include nova::compute::libvirt::virtlogd
    include nova::compute::libvirt::services

    $libvirtd_config_default = {
      unix_sock_group    => {value => '"libvirt"'},
      auth_unix_ro       => {value => '"none"'},
      auth_unix_rw       => {value => '"none"'},
      unix_sock_ro_perms => {value => '"0777"'},
      unix_sock_rw_perms => {value => '"0770"'}
    }

    class { 'nova::compute::libvirt::config':
      libvirtd_config => merge($libvirtd_config_default, $libvirtd_config)
    }

    class { 'nova::compute::libvirt::virtlogd::config':
      virtlogd_config => $virtlogd_config
    }

    # This removal of files in /etc/libvirt/qemu should not happen inside containers
    # Avoids LP#1819482
    if $::deployment_type != 'containers' {
      file { ['/etc/libvirt/qemu/networks/autostart/default.xml',
              '/etc/libvirt/qemu/networks/default.xml']:
        ensure  => absent,
        require => Package['libvirt'],
        before  => Service['libvirt'],
      }
    }

    # in case libvirt has been already running before the Puppet run, make
    # sure the default network is destroyed
    exec { 'libvirt-default-net-destroy':
      command => '/usr/bin/virsh net-destroy default',
      onlyif  => '/usr/bin/virsh net-info default | /bin/grep -i "^active:\s*yes"',
      require => Package['libvirt'],
      before  => Service['libvirt'],
    }

    include nova::compute::libvirt::qemu
    include nova::migration::qemu

    $libvirt_sasl_conf = "
mech_list: scram-sha-1
sasldb_path: /etc/libvirt/passwd.db
"

    package { 'cyrus-sasl-scram':
      ensure => present
    }
    ->file { '/etc/sasl2/libvirt.conf':
      content => $libvirt_sasl_conf,
      mode    => '0644',
      owner   => 'root',
      group   => 'root',
      require => Package['libvirt'],
      notify  => Service['libvirt'],
    }

    if !empty($tls_password) {
      $libvirt_sasl_command = "echo \"\${TLS_PASSWORD}\" | saslpasswd2 -p -a libvirt -u overcloud migration"
      $libvirt_auth_ensure = present
      $libvirt_auth_conf = "
[credentials-overcloud]
authname=migration@overcloud
password=${tls_password}

[auth-libvirt-default]
credentials=overcloud
"
    }
    else {
      $libvirt_sasl_command = 'saslpasswd2 -d -a libvirt -u overcloud migration'
      $libvirt_auth_ensure = absent
      $libvirt_auth_conf = ''
    }

    exec{ 'set libvirt sasl credentials':
      environment => ["TLS_PASSWORD=${tls_password}"],
      command     => $libvirt_sasl_command,
      path        => ['/sbin', '/usr/sbin', '/bin', '/usr/bin'],
      require     => File['/etc/sasl2/libvirt.conf'],
      tag         => ['libvirt_tls_password']
    }

    file { '/etc/libvirt/auth.conf':
      ensure  => $libvirt_auth_ensure,
      content => $libvirt_auth_conf,
      mode    => '0600',
      owner   => 'root',
      group   => 'root',
      notify  => Service['libvirt']
    }
  }
}