# 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::api
#
# Nova API profile for tripleo
#
# [*bootstrap_node*]
#   (Optional) The hostname of the node responsible for bootstrapping tasks
#   Defaults to hiera('bootstrap_nodeid')
#
# [*certificates_specs*]
#   (Optional) The specifications to give to certmonger for the certificate(s)
#   it will create.
#   Example with hiera:
#     apache_certificates_specs:
#       httpd-internal_api:
#         hostname: <overcloud controller fqdn>
#         service_certificate: <service certificate path>
#         service_key: <service key path>
#         principal: "haproxy/<overcloud controller fqdn>"
#   Defaults to hiera('apache_certificate_specs', {}).
#
# [*enable_internal_tls*]
#   (Optional) Whether TLS in the internal network is enabled or not.
#   Defaults to hiera('enable_internal_tls', false)
#
# [*generate_service_certificates*]
#   (Optional) Whether or not certmonger will generate certificates for
#   HAProxy. This could be as many as specified by the $certificates_specs
#   variable.
#   Note that this doesn't configure the certificates in haproxy, it merely
#   creates the certificates.
#   Defaults to hiera('generate_service_certificate', false).
#
# [*nova_api_network*]
#   (Optional) The network name where the nova API endpoint is listening on.
#   This is set by t-h-t.
#   Defaults to hiera('nova_api_network', undef)
#
# [*step*]
#   (Optional) The current step in deployment. See tripleo-heat-templates
#   for more details.
#   Defaults to hiera('step')
#
class tripleo::profile::base::nova::api (
  $bootstrap_node                = hiera('bootstrap_nodeid', undef),
  $certificates_specs            = hiera('apache_certificates_specs', {}),
  $enable_internal_tls           = hiera('enable_internal_tls', false),
  $generate_service_certificates = hiera('generate_service_certificates', false),
  $nova_api_network              = hiera('nova_api_network', undef),
  $step                          = hiera('step'),
) {
  if $::hostname == downcase($bootstrap_node) {
    $sync_db = true
  } else {
    $sync_db = false
  }

  include ::tripleo::profile::base::nova

  if $enable_internal_tls {
    if $generate_service_certificates {
      ensure_resources('tripleo::certmonger::httpd', $certificates_specs)
    }

    if !$nova_api_network {
      fail('nova_api_network is not set in the hieradata.')
    }
    $tls_certfile = $certificates_specs["httpd-${nova_api_network}"]['service_certificate']
    $tls_keyfile = $certificates_specs["httpd-${nova_api_network}"]['service_key']
  } else {
    $tls_certfile = undef
    $tls_keyfile = undef
  }

  if ($step >= 3 and $sync_db) {
    $messaging_hosts_real = any2array($::tripleo::profile::base::nova::messaging_hosts)
    # TODO(aschultz): remove sprintf once we properly type the port, needs
    # to be a string for the os_transport_url function.
    $messaging_port_real = sprintf('%s', $::tripleo::profile::base::nova::messaging_port)
    $messaging_use_ssl_real = sprintf('%s', bool2num(str2bool($::tripleo::profile::base::nova::messaging_use_ssl)))

    #TODO(emilien): enable it again when it's fixed upstream in nova
    # https://bugs.launchpad.net/tripleo/+bug/1649341
    # class { '::nova::db::sync_cell_v2':
    #   transport_url => os_transport_url({
    #     'transport' => $::tripleo::profile::base::nova::messaging_driver,
    #     'hosts'     => $messaging_hosts_real,
    #     'port'      => $messaging_port_real,
    #     'username'  => $::tripleo::profile::base::nova::messaging_username,
    #     'password'  => $::tripleo::profile::base::nova::messaging_password,
    #     'ssl'       => $messaging_use_ssl_real,
    #     }),
    # }
  }

  if $step >= 4 or ($step >= 3 and $sync_db) {

    if hiera('nova::use_ipv6', false) {
      $memcache_servers = suffix(any2array(normalize_ip_for_uri(hiera('memcached_node_ips_v6'))), ':11211')
    } else {
      $memcache_servers = suffix(any2array(normalize_ip_for_uri(hiera('memcached_node_ips'))), ':11211')
    }

    class { '::nova::keystone::authtoken':
      memcached_servers => $memcache_servers
    }

    class { '::nova::api':
      sync_db     => $sync_db,
      sync_db_api => $sync_db,
    }
    class { '::nova::wsgi::apache_api':
      ssl_cert => $tls_certfile,
      ssl_key  => $tls_keyfile,
    }
    include ::nova::network::neutron
  }

  if $step >= 5 {
    if hiera('nova_enable_db_purge', true) {
      include ::nova::cron::archive_deleted_rows
    }
  }
}