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# 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::compute
#
# Nova Compute profile for tripleo
#
# === Parameters
#
# [*step*]
#   (Optional) The current step in deployment. See tripleo-heat-templates
#   for more details.
#   Defaults to hiera('step')
#
# [*cinder_nfs_backend*]
#   (Optional) Whether or not Cinder is backed by NFS.
#   Defaults to hiera('cinder_enable_nfs_backend', false)
#
class tripleo::profile::base::nova::compute (
  $step               = Integer(hiera('step')),
  $cinder_nfs_backend = hiera('cinder_enable_nfs_backend', false),
) {

  if $step >= 4 {
    # deploy basic bits for nova
    include ::tripleo::profile::base::nova

    # deploy basic bits for nova-compute
    include ::nova::compute
    # If Service['nova-conductor'] is in catalog, make sure we start it
    # before nova-compute.
    Service<| title == 'nova-conductor' |> -> Service['nova-compute']


    # deploy bits to connect nova compute to neutron
    include ::nova::network::neutron

    # When utilising images for deployment, we need to reset the iSCSI initiator name to make it unique
    # https://bugzilla.redhat.com/show_bug.cgi?id=1244328
    ensure_resource('package', 'iscsi-initiator-utils', { ensure => 'present' })
    exec { 'reset-iscsi-initiator-name':
      command => '/bin/echo InitiatorName=$(/usr/sbin/iscsi-iname) > /etc/iscsi/initiatorname.iscsi',
      onlyif  => '/usr/bin/test ! -f /etc/iscsi/.initiator_reset',
      before  => File['/etc/iscsi/.initiator_reset'],
      require => Package['iscsi-initiator-utils'],
    }
    file { '/etc/iscsi/.initiator_reset':
      ensure => present,
    }
  }

  # If NFS is used as a Cinder backend
  if $cinder_nfs_backend {
    ensure_packages('nfs-utils', { ensure => present })
    Package['nfs-utils'] -> Service['nova-compute']
    if str2bool($::selinux) {
      selboolean { 'virt_use_nfs':
        value      => on,
        persistent => true,
      }
      Selboolean['virt_use_nfs'] -> Package['nfs-utils']
    }
  }

}