Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/outputs/nsq/nsq.go

@@ -0,0 +1,75 @@
+//go:generate ../../../tools/readme_config_includer/generator
+package nsq
+
+import (
+	_ "embed"
+	"fmt"
+
+	"github.com/nsqio/go-nsq"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/outputs"
+)
+
+//go:embed sample.conf
+var sampleConfig string
+
+type NSQ struct {
+	Server string
+	Topic  string
+	Log    telegraf.Logger `toml:"-"`
+
+	producer   *nsq.Producer
+	serializer telegraf.Serializer
+}
+
+func (*NSQ) SampleConfig() string {
+	return sampleConfig
+}
+
+func (n *NSQ) SetSerializer(serializer telegraf.Serializer) {
+	n.serializer = serializer
+}
+
+func (n *NSQ) Connect() error {
+	config := nsq.NewConfig()
+	producer, err := nsq.NewProducer(n.Server, config)
+
+	if err != nil {
+		return err
+	}
+
+	n.producer = producer
+	return nil
+}
+
+func (n *NSQ) Close() error {
+	n.producer.Stop()
+	return nil
+}
+
+func (n *NSQ) Write(metrics []telegraf.Metric) error {
+	if len(metrics) == 0 {
+		return nil
+	}
+
+	for _, metric := range metrics {
+		buf, err := n.serializer.Serialize(metric)
+		if err != nil {
+			n.Log.Debugf("Could not serialize metric: %v", err)
+			continue
+		}
+
+		err = n.producer.Publish(n.Topic, buf)
+		if err != nil {
+			return fmt.Errorf("failed to send NSQD message: %w", err)
+		}
+	}
+	return nil
+}
+
+func init() {
+	outputs.Add("nsq", func() telegraf.Output {
+		return &NSQ{}
+	})
+}