# == Class: octavia
#
# Full description of class octavia here.
#
# === Parameters
#
# [*package_ensure*]
#   (optional) The state of aodh packages
#   Defaults to 'present'
#
# [*default_transport_url*]
#    (optional) A URL representing the messaging driver to use and its full
#    configuration. Transport URLs take the form:
#      transport://user:pass@host1:port[,hostN:portN]/virtual_host
#    Defaults to $::os_service_default
#
# [*rpc_response_timeout*]
#  (Optional) Seconds to wait for a response from a call.
#  Defaults to $::os_service_default
#
# [*control_exchange*]
#   (Optional) The default exchange under which topics are scoped. May be
#   overridden by an exchange name specified in the transport_url
#   option.
#   Defaults to $::os_service_default
#
# [*rpc_backend*]
#   (optional) The rpc backend implementation to use, can be:
#     amqp (for AMQP 1.0 protocol)
#     rabbit (for rabbitmq)
#     zmq (for zeromq)
#   Defaults to 'rabbit'
#
# [*rabbit_use_ssl*]
#   (optional) Connect over SSL for RabbitMQ
#   Defaults to $::os_service_default
#
# [*rabbit_ha_queues*]
#   (optional) Use HA queues in RabbitMQ.
#   Defaults to $::os_service_default
#
# [*rabbit_heartbeat_timeout_threshold*]
#   (optional) Number of seconds after which the RabbitMQ broker is considered
#   down if the heartbeat keepalive fails.  Any value >0 enables heartbeats.
#   Heartbeating helps to ensure the TCP connection to RabbitMQ isn't silently
#   closed, resulting in missed or lost messages from the queue.
#   (Requires kombu >= 3.0.7 and amqp >= 1.4.0)
#   Defaults to $::os_service_default
#
# [*rabbit_heartbeat_rate*]
#   (optional) How often during the rabbit_heartbeat_timeout_threshold period to
#   check the heartbeat on RabbitMQ connection.  (i.e. rabbit_heartbeat_rate=2
#   when rabbit_heartbeat_timeout_threshold=60, the heartbeat will be checked
#   every 30 seconds.
#   Defaults to $::os_service_default
#
# [*kombu_ssl_ca_certs*]
#   (optional) SSL certification authority file (valid only if SSL enabled).
#   Defaults to $::os_service_default
#
# [*kombu_ssl_certfile*]
#   (optional) SSL cert file (valid only if SSL enabled).
#   Defaults to $::os_service_default
#
# [*kombu_ssl_keyfile*]
#   (optional) SSL key file (valid only if SSL enabled).
#   Defaults to $::os_service_default
#
# [*kombu_ssl_version*]
#   (optional) SSL version to use (valid only if SSL enabled).
#   Valid values are TLSv1, SSLv23 and SSLv3. SSLv2 may be
#   available on some distributions.
#   Defaults to $::os_service_default
#
# [*kombu_reconnect_delay*]
#   (optional) How long to wait before reconnecting in response to an AMQP
#   consumer cancel notification.
#   Defaults to '$::os_service_default
#
# [*kombu_compression*]
#   (optional) Possible values are: gzip, bz2. If not set compression will not
#   be used. This option may notbe available in future versions. EXPERIMENTAL.
#   (string value)
#   Defaults to $::os_service_default
#
# [*amqp_durable_queues*]
#   (optional) Define queues as "durable" to rabbitmq.
#   Defaults to $::os_service_default
#
# [*amqp_server_request_prefix*]
#   (Optional) Address prefix used when sending to a specific server
#   Defaults to $::os_service_default.
#
# [*amqp_broadcast_prefix*]
#   (Optional) address prefix used when broadcasting to all servers
#   Defaults to $::os_service_default.
#
# [*amqp_group_request_prefix*]
#   (Optional) address prefix when sending to any server in group
#   Defaults to $::os_service_default.
#
# [*amqp_container_name*]
#   (Optional) Name for the AMQP container
#   Defaults to $::os_service_default.
#
# [*amqp_idle_timeout*]
#   (Optional) Timeout for inactive connections
#   Defaults to $::os_service_default.
#
# [*amqp_trace*]
#   (Optional) Debug: dump AMQP frames to stdout
#   Defaults to $::os_service_default.
#
# [*amqp_ssl_ca_file*]
#   (Optional) CA certificate PEM file to verify server certificate
#   Defaults to $::os_service_default.
#
# [*amqp_ssl_cert_file*]
#   (Optional) Identifying certificate PEM file to present to clients
#   Defaults to $::os_service_default.
#
# [*amqp_ssl_key_file*]
#   (Optional) Private key PEM file used to sign cert_file certificate
#   Defaults to $::os_service_default.
#
# [*amqp_ssl_key_password*]
#   (Optional) Password for decrypting ssl_key_file (if encrypted)
#   Defaults to $::os_service_default.
#
# [*amqp_allow_insecure_clients*]
#   (Optional) Accept clients using either SSL or plain TCP
#   Defaults to $::os_service_default.
#
# [*amqp_sasl_mechanisms*]
#   (Optional) Space separated list of acceptable SASL mechanisms
#   Defaults to $::os_service_default.
#
# [*amqp_sasl_config_dir*]
#   (Optional) Path to directory that contains the SASL configuration
#   Defaults to $::os_service_default.
#
# [*amqp_sasl_config_name*]
#   (Optional) Name of configuration file (without .conf suffix)
#   Defaults to $::os_service_default.
#
# [*amqp_username*]
#   (Optional) User name for message broker authentication
#   Defaults to $::os_service_default.
#
# [*amqp_password*]
#   (Optional) Password for message broker authentication
#   Defaults to $::os_service_default.
#
# [*notification_transport_url*]
#   (optional) A URL representing the messaging driver to use for notifications
#   and its full configuration. Transport URLs take the form:
#     transport://user:pass@host1:port[,hostN:portN]/virtual_host
#   Defaults to $::os_service_default
#
# [*notification_driver*]
#   (optional) Driver or drivers to handle sending notifications.
#   Value can be a string or a list.
#   Defaults to $::os_service_default
#
# [*notification_topics*]
#   (optional) AMQP topic used for OpenStack notifications
#   Defaults to $::os_service_default
#
# [*topic*]
#   Messaging topic for for controller-worker RPC communication.
#   Defaults to 'octavia-rpc'
#
# [*purge_config*]
#   (optional) Whether to set only the specified config options
#   in the octavia config.
#   Defaults to false.
#
# DEPRECATED PARAMETERS
#
# [*ensure_package*]
#   (optional) The state of aodh packages
#   Defaults to undef
#
class octavia (
  $package_ensure                     = 'present',
  $default_transport_url              = $::os_service_default,
  $rpc_response_timeout               = $::os_service_default,
  $control_exchange                   = $::os_service_default,
  $rpc_backend                        = 'rabbit',
  $rabbit_use_ssl                     = $::os_service_default,
  $rabbit_heartbeat_timeout_threshold = $::os_service_default,
  $rabbit_heartbeat_rate              = $::os_service_default,
  $rabbit_ha_queues                   = $::os_service_default,
  $kombu_ssl_ca_certs                 = $::os_service_default,
  $kombu_ssl_certfile                 = $::os_service_default,
  $kombu_ssl_keyfile                  = $::os_service_default,
  $kombu_ssl_version                  = $::os_service_default,
  $kombu_reconnect_delay              = $::os_service_default,
  $kombu_compression                  = $::os_service_default,
  $amqp_durable_queues                = $::os_service_default,
  $amqp_server_request_prefix         = $::os_service_default,
  $amqp_broadcast_prefix              = $::os_service_default,
  $amqp_group_request_prefix          = $::os_service_default,
  $amqp_container_name                = $::os_service_default,
  $amqp_idle_timeout                  = $::os_service_default,
  $amqp_trace                         = $::os_service_default,
  $amqp_ssl_ca_file                   = $::os_service_default,
  $amqp_ssl_cert_file                 = $::os_service_default,
  $amqp_ssl_key_file                  = $::os_service_default,
  $amqp_ssl_key_password              = $::os_service_default,
  $amqp_allow_insecure_clients        = $::os_service_default,
  $amqp_sasl_mechanisms               = $::os_service_default,
  $amqp_sasl_config_dir               = $::os_service_default,
  $amqp_sasl_config_name              = $::os_service_default,
  $amqp_username                      = $::os_service_default,
  $amqp_password                      = $::os_service_default,
  $notification_transport_url         = $::os_service_default,
  $notification_driver                = $::os_service_default,
  $notification_topics                = $::os_service_default,
  $topic                              = 'octavia-rpc',
  $purge_config                       = false,
  # DEPRECATED PARAMETERS
  $ensure_package                     = undef,
) inherits octavia::params {

  include ::octavia::deps
  include ::octavia::logging

  if $ensure_package {
    warning("octavia::ensure_package is deprecated and will be removed in \
the future release. Please use octavia::package_ensure instead.")
    $package_ensure_real = $ensure_package
  } else {
    $package_ensure_real = $package_ensure
  }

  package { 'octavia':
    ensure => $package_ensure_real,
    name   => $::octavia::params::common_package_name,
    tag    => ['openstack', 'octavia-package'],
  }

  resources { 'octavia_config':
    purge => $purge_config,
  }

  if $rpc_backend == 'rabbit' {
    oslo::messaging::rabbit { 'octavia_config':
      rabbit_ha_queues            => $rabbit_ha_queues,
      heartbeat_timeout_threshold => $rabbit_heartbeat_timeout_threshold,
      heartbeat_rate              => $rabbit_heartbeat_rate,
      rabbit_use_ssl              => $rabbit_use_ssl,
      kombu_reconnect_delay       => $kombu_reconnect_delay,
      kombu_ssl_version           => $kombu_ssl_version,
      kombu_ssl_keyfile           => $kombu_ssl_keyfile,
      kombu_ssl_certfile          => $kombu_ssl_certfile,
      kombu_ssl_ca_certs          => $kombu_ssl_ca_certs,
      kombu_compression           => $kombu_compression,
      amqp_durable_queues         => $amqp_durable_queues,
    }
  }
  elsif $rpc_backend == 'amqp' {
    oslo::messaging::amqp { 'octavia_config':
      server_request_prefix  => $amqp_server_request_prefix,
      broadcast_prefix       => $amqp_broadcast_prefix,
      group_request_prefix   => $amqp_group_request_prefix,
      container_name         => $amqp_container_name,
      idle_timeout           => $amqp_idle_timeout,
      trace                  => $amqp_trace,
      ssl_ca_file            => $amqp_ssl_ca_file,
      ssl_cert_file          => $amqp_ssl_cert_file,
      ssl_key_file           => $amqp_ssl_key_file,
      ssl_key_password       => $amqp_ssl_key_password,
      allow_insecure_clients => $amqp_allow_insecure_clients,
      sasl_mechanisms        => $amqp_sasl_mechanisms,
      sasl_config_dir        => $amqp_sasl_config_dir,
      sasl_config_name       => $amqp_sasl_config_name,
      username               => $amqp_username,
      password               => $amqp_password,
    }
  }

  oslo::messaging::default { 'octavia_config':
    transport_url        => $default_transport_url,
    rpc_response_timeout => $rpc_response_timeout,
    control_exchange     => $control_exchange,
  }

  oslo::messaging::notifications { 'octavia_config':
    transport_url => $notification_transport_url,
    driver        => $notification_driver,
    topics        => $notification_topics,
  }

  # This isn't really an oslo_messaging configuration, but an octavia specific configuration item
  # that has been imported into the oslo_messaging configuration group by octavia.
  octavia_config {
    'oslo_messaging/topic' : value => $topic;
  }
}