#
# == Class: openstack::compute
#
# Manifest to install/configure nova-compute
#
# === Parameters
#
# See params.pp
#
# === Examples
#
# class { 'openstack::nova::compute':
#   internal_address   => '192.168.2.2',
#   vncproxy_host      => '192.168.1.1',
#   nova_user_password => 'changeme',
# }

class openstack::compute (
  # Required Network
  $internal_address,
  # Required Nova
  $nova_user_password,
  # Required Rabbit
  $rabbit_password,
  # Network
  # DB
  $sql_connection                = false,
  # Nova
  $purge_nova_config              = true,
  # Rabbit
  $rabbit_host                   = false,
  $rabbit_user                   = 'nova',
  # Glance
  $glance_api_servers            = false,
  # Virtualization
  $libvirt_type                  = 'kvm',
  # VNC
  $vnc_enabled                   = true,
  $vncproxy_host                 = undef,
  # General
  $verbose                       = 'False',
  $enabled                       = true
) {

  #
  # indicates that all nova config entries that we did
  # not specifify in Puppet should be purged from file
  #
  if ! defined( Resources[nova_config] ) {
    if ($purge_nova_config) {
      resources { 'nova_config':
        purge => true,
      }
    }
  }

  $final_sql_connection = $sql_connection
  $glance_connection = $glance_api_servers
  $rabbit_connection = $rabbit_host

  class { 'nova':
    sql_connection     => $sql_connection,
    rabbit_userid      => $rabbit_user,
    rabbit_password    => $rabbit_password,
    image_service      => 'nova.image.glance.GlanceImageService',
    glance_api_servers => $glance_api_servers,
    verbose            => $verbose,
    rabbit_host        => $rabbit_host,
  }

  # Install / configure nova-compute
  class { '::nova::compute':
    enabled                       => $enabled,
    vnc_enabled                   => $vnc_enabled,
    vncserver_proxyclient_address => $internal_address,
    vncproxy_host                 => $vncproxy_host,
  }

  # Configure libvirt for nova-compute
  class { 'nova::compute::libvirt':
    libvirt_type     => $libvirt_type,
    vncserver_listen => $internal_address,
  }

  # if the compute node should be configured as a multi-host
  # compute installation
  if $multi_host {
    include keystone::python
    #nova_config {
    #  'multi_host':      value => 'True';
    #  'send_arp_for_ha': value => 'True';
    #}
    #if ! $public_interface {
    #  fail('public_interface must be defined for multi host compute nodes')
    #}
    #$enable_network_service = true
    class { 'nova::api':
      enabled           => true,
      admin_tenant_name => 'services',
      admin_user        => 'nova',
      admin_password    => $nova_user_password,
      # TODO override enabled_apis
    }
  } else {
    #$enable_network_service = false
    #nova_config {
    #  'multi_host':      value => 'False';
    #  'send_arp_for_ha': value => 'False';
    #}
  }

  #class { 'nova::network':
  #  private_interface => $private_interface,
  #  public_interface  => $public_interface,
  #  fixed_range       => $fixed_range,
  #  floating_range    => false,
  #  network_manager   => $network_manager,
  #  config_overrides  => $network_config,
  #  create_networks   => false,
  #  enabled           => $enable_network_service,
  #  install_service   => $enable_network_service,
  #}

}