# Class swift::containerreconciler
#
# == Parameters
#
#  [*enabled*]
#    (optional) Should the service be enabled.
#    Defaults to true
#
#  [*manage_service*]
#    (optional) Whether the service should be managed by Puppet.
#    Defaults to true.
#
#  [*package_ensure*]
#    (optional) Value of package resource parameter 'ensure'.
#    Defaults to 'present'.
#
#  [*pipeline*]
#    (optional) The list of elements of the container reconciler pipeline.
#    Defaults to ['catch_errors', 'proxy-logging', 'cache', 'proxy-server']
#
#  [*interval*]
#    (optional) Minimum time for a pass to take, in seconds.
#    Defaults to 300.
#
#  [*reclaim_age*]
#    (optional) The reconciler will re-attempt reconciliation if the source
#    object is not available up to reclaim_age seconds before it gives up and
#    deletes the entry in the queue.
#    Defaults to 604800 (1 week).
#
#  [*request_tries*]
#    (optional) Server errors from requests will be retried by default
#    Defaults to 3.
#
#  [*service_provider*]
#    (optional)
#    To use the swiftinit service provider to manage swift services, set
#    service_provider to "swiftinit".  When enable is true the provider
#    will populate boot files that start swift using swift-init at boot.
#    See README for more details.
#    Defaults to $::swift::params::service_provider.
#
#  [*memcache_servers*]
#    (optional)
#    A list of the memcache servers to be used. Entries should be in the
#    form host:port. This value is only used if 'cache' is added to the
#    pipeline,
#    e.g. ['catch_errors', 'proxy-logging', 'cache', 'proxy-server']
#    Defaults to ['127.0.0.1:11211']
#
class swift::containerreconciler(
  $manage_service   = true,
  $enabled          = true,
  $package_ensure   = 'present',
  $pipeline         = ['catch_errors', 'proxy-logging', 'proxy-server'],
  $interval         = 300,
  $reclaim_age      = 604800,
  $request_tries    = 3,
  $service_provider = $::swift::params::service_provider,
  $memcache_servers = ['127.0.0.1:11211'],
) inherits ::swift::params {

  include ::swift::deps
  Swift_config<| |> ~> Service['swift-container-reconciler']
  Swift_container_reconciler_config<||> ~> Service['swift-container-reconciler']

  # only add memcache servers if 'cache' is included in the pipeline
  if !empty(grep(any2array($pipeline), 'cache')) {

    swift_container_reconciler_config {
      'filter:cache/memcache_servers': value => join(any2array($memcache_servers), ',');
    }

    # require the memcached class if it is on the same machine
    if !empty(grep(any2array($memcache_servers), '127.0.0.1')) {
      Class['::memcached'] -> Class['::swift::containerreconciler']
    }
  }

  swift_container_reconciler_config {
    'pipeline:main/pipeline':             value => join($pipeline, ' ');
    'container-reconciler/interval':      value => $interval;
    'container-reconciler/reclaim_age':   value => $reclaim_age;
    'container-reconciler/request_tries': value => $request_tries;
  }

  if $manage_service {
    if $enabled {
      $service_ensure = 'running'
    } else {
      $service_ensure = 'stopped'
    }
  }

  swift::service { 'swift-container-reconciler':
    os_family_service_name => $::swift::params::container_reconciler_service_name,
    service_ensure         => $service_ensure,
    enabled                => $enabled,
    config_file_name       => 'container-reconciler.conf',
    service_provider       => $service_provider,
  }

}