func (publisher *PublisherType) PublishTopology(params ...string) error {
localAddrs := params
if len(params) == 0 {
addrs, err := common.LocalIpAddrsAsStrings(false)
if err != nil {
logp.Err("Getting local IP addresses fails with: %s", err)
return err
}
localAddrs = addrs
}
if publisher.TopologyOutput != nil {
debug("Add topology entry for %s: %s", publisher.name, localAddrs)
err := publisher.TopologyOutput.PublishIPs(publisher.name, localAddrs)
if err != nil {
return err
}
}
return nil
}
func (publisher *PublisherType) init(
beatName string,
configs map[string]*ucfg.Config,
shipper ShipperConfig,
) error {
var err error
publisher.IgnoreOutgoing = shipper.Ignore_outgoing
publisher.disabled = *publishDisabled
if publisher.disabled {
logp.Info("Dry run mode. All output types except the file based one are disabled.")
}
hwm := defaultChanSize
if shipper.QueueSize != nil && *shipper.QueueSize > 0 {
hwm = *shipper.QueueSize
}
bulkHWM := defaultBulkChanSize
if shipper.BulkQueueSize != nil && *shipper.BulkQueueSize >= 0 {
bulkHWM = *shipper.BulkQueueSize
}
publisher.GeoLite = common.LoadGeoIPData(shipper.Geoip)
publisher.wsPublisher.Init()
publisher.wsOutput.Init()
if !publisher.disabled {
plugins, err := outputs.InitOutputs(beatName, configs, shipper.Topology_expire)
if err != nil {
return err
}
var outputers []*outputWorker
var topoOutput outputs.TopologyOutputer
for _, plugin := range plugins {
output := plugin.Output
config := plugin.Config
debug("Create output worker")
outputers = append(outputers,
newOutputWorker(
config,
output,
&publisher.wsOutput,
hwm,
bulkHWM))
if ok, _ := config.Bool("save_topology", 0); !ok {
continue
}
topo, ok := output.(outputs.TopologyOutputer)
if !ok {
logp.Err("Output type %s does not support topology logging",
plugin.Name)
return errors.New("Topology output not supported")
}
if topoOutput != nil {
logp.Err("Multiple outputs defined to store topology. " +
"Please add save_topology = true option only for one output.")
return errors.New("Multiple outputs defined to store topology")
}
topoOutput = topo
logp.Info("Using %s to store the topology", plugin.Name)
}
publisher.Output = outputers
publisher.TopologyOutput = topoOutput
}
if !publisher.disabled {
if len(publisher.Output) == 0 {
logp.Info("No outputs are defined. Please define one under the output section.")
return errors.New("No outputs are defined. Please define one under the output section.")
}
if publisher.TopologyOutput == nil {
logp.Debug("publish", "No output is defined to store the topology. The server fields might not be filled.")
}
}
publisher.shipperName = shipper.Name
publisher.hostname, err = os.Hostname()
if err != nil {
return err
}
if len(publisher.shipperName) > 0 {
publisher.name = publisher.shipperName
} else {
publisher.name = publisher.hostname
}
logp.Info("Publisher name: %s", publisher.name)
publisher.globalEventMetadata = shipper.EventMetadata
//Store the publisher's IP addresses
publisher.IpAddrs, err = common.LocalIpAddrsAsStrings(false)
if err != nil {
logp.Err("Failed to get local IP addresses: %s", err)
return err
}
if !publisher.disabled && publisher.TopologyOutput != nil {
RefreshTopologyFreq := 10 * time.Second
if shipper.Refresh_topology_freq != 0 {
RefreshTopologyFreq = time.Duration(shipper.Refresh_topology_freq) * time.Second
}
publisher.RefreshTopologyTimer = time.Tick(RefreshTopologyFreq)
logp.Info("Topology map refreshed every %s", RefreshTopologyFreq)
// register shipper and its public IP addresses
err = publisher.PublishTopology()
if err != nil {
logp.Err("Failed to publish topology: %s", err)
return err
}
// update topology periodically
go publisher.UpdateTopologyPeriodically()
}
publisher.asyncPublisher = newAsyncPublisher(publisher, hwm, bulkHWM, &publisher.wsPublisher)
publisher.syncPublisher = newSyncPublisher(publisher, hwm, bulkHWM)
publisher.client = newClient(publisher)
return nil
}