Adding upstream version 1.34.4.

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

plugins/outputs/nsq/README.md

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+# NSQ Output Plugin
+
+This plugin writes metrics to the given topic of a [NSQ][nsq] instance as a
+producer in one of the supported [data formats][data_formats].
+
+⭐ Telegraf v0.2.1
+🏷️ messaging
+💻 all
+
+[nsq]: https://nsq.io
+[data_formats]: /docs/DATA_FORMATS_OUTPUT.md
+
+## Global configuration options <!-- @/docs/includes/plugin_config.md -->
+
+In addition to the plugin-specific configuration settings, plugins support
+additional global and plugin configuration settings. These settings are used to
+modify metrics, tags, and field or create aliases and configure ordering, etc.
+See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
+
+[CONFIGURATION.md]: ../../../docs/CONFIGURATION.md#plugins
+
+## Configuration
+
+```toml @sample.conf
+# Send telegraf measurements to NSQD
+[[outputs.nsq]]
+  ## Location of nsqd instance listening on TCP
+  server = "localhost:4150"
+  ## NSQ topic for producer messages
+  topic = "telegraf"
+
+  ## Data format to output.
+  ## Each data format has its own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "influx"
+```

plugins/outputs/nsq/nsq.go

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+//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{}
+	})
+}

plugins/outputs/nsq/nsq_test.go

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+package nsq
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/docker/go-connections/nat"
+	"github.com/stretchr/testify/require"
+	"github.com/testcontainers/testcontainers-go/wait"
+
+	"github.com/influxdata/telegraf/plugins/serializers/influx"
+	"github.com/influxdata/telegraf/testutil"
+)
+
+func TestConnectAndWriteIntegration(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping integration test in short mode")
+	}
+
+	servicePort := "4150"
+	container := testutil.Container{
+		Image:        "nsqio/nsq",
+		ExposedPorts: []string{servicePort},
+		Entrypoint:   []string{"/nsqd"},
+		WaitingFor:   wait.ForListeningPort(nat.Port(servicePort)),
+	}
+	err := container.Start()
+	require.NoError(t, err, "failed to start container")
+	defer container.Terminate()
+
+	server := []string{fmt.Sprintf("%s:%s", container.Address, container.Ports[servicePort])}
+	s := &influx.Serializer{}
+	require.NoError(t, s.Init())
+	n := &NSQ{
+		Server:     server[0],
+		Topic:      "telegraf",
+		serializer: s,
+	}
+
+	// Verify that we can connect to the NSQ daemon
+	err = n.Connect()
+	require.NoError(t, err)
+
+	// Verify that we can successfully write data to the NSQ daemon
+	err = n.Write(testutil.MockMetrics())
+	require.NoError(t, err)
+}

plugins/outputs/nsq/sample.conf

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+# Send telegraf measurements to NSQD
+[[outputs.nsq]]
+  ## Location of nsqd instance listening on TCP
+  server = "localhost:4150"
+  ## NSQ topic for producer messages
+  topic = "telegraf"
+
+  ## Data format to output.
+  ## Each data format has its own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "influx"