h.kconfig.LogOnce(context.Background(), err, h.kconfig.Topic)
	}
}

func (h *Target) send(entry any) error {
	if err := h.initKafkaOnce.Do(h.init); err != nil {
		return err
	}
	logJSON, err := json.Marshal(&entry)
	if err != nil {
		return err
	}
	msg := sarama.ProducerMessage{
		Topic: h.kconfig.Topic,
		Value: sarama.ByteEncoder(logJSON),
	}

```
KEY:
notify_mqtt[:name]  publish bucket notifications to MQTT endpoints

ARGS:
broker*              (uri)       MQTT server endpoint e.g. `tcp://localhost:1883`
topic*               (string)    name of the MQTT topic to publish
username             (string)    MQTT username
password             (string)    MQTT password
qos                  (number)    set the quality of service priority, defaults to '0'

///

## GitHub Repositories

Most starred [GitHub repositories with the topic `fastapi`](https://github.com/topics/fastapi):

{% for repo in topic_repos %}

<a href={{repo.html_url}} target="_blank">★ {{repo.stars}} - {{repo.name}}</a> by <a href={{repo.owner_html_url}} target="_blank">@{{repo.owner_login}}</a>.

[[questions]]
== Questions? Problems? Suggestions?

* To report a bug or request a feature, create a
https://github.com/elastic/elasticsearch/issues/new/choose[GitHub Issue]. Please
ensure someone else hasn't created an issue for the same topic.

* Need help using Elasticsearch? Reach out on the
https://discuss.elastic.co[Elastic Forum] or https://ela.st/slack[Slack]. A

	      <Cloudcode>arn:aws:lambda:us-west-2:444455556666:cloud-function-A</Cloudcode>
	      <Event>s3:ObjectCreated:Put</Event>
	   </CloudFunctionConfiguration>
	   <TopicConfiguration>
	      <Topic>arn:aws:sns:us-west-2:444455556666:sns-notification-one</Topic>
	      <Event>s3:ObjectCreated:*</Event>
	  </TopicConfiguration>
	</NotificationConfiguration>
	`)

# MinIO Multi-Tenant Deployment Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![Docker Pulls](https://img.shields.io/docker/pulls/minio/minio.svg?maxAge=604800)](https://hub.docker.com/r/minio/minio/)

This topic provides commands to set up different configurations of hosts, nodes, and drives. The examples provided here can be used as a starting point for other configurations.

1. [Standalone Deployment](#standalone-deployment)

			Key:         target.KafkaBrokers,
			Description: "comma separated list of Kafka broker addresses",
			Type:        "csv",
		},
		config.HelpKV{
			Key:         target.KafkaTopic,
			Description: "Kafka topic used for bucket notifications",
			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{
			Key:         target.KafkaSASLUsername,
			Description: "username for SASL/PLAIN or SASL/SCRAM authentication",

}

// ErrUnsupportedConfiguration - unsupported configuration error.
type ErrUnsupportedConfiguration struct{}

func (err ErrUnsupportedConfiguration) Error() string {
	return "topic or cloud function configuration is not supported"
}

// ErrDuplicateQueueConfiguration - duplicate queue configuration error.
type ErrDuplicateQueueConfiguration struct {
	Queue Queue
}

	QueueDir      = "queue_dir"
	MaxRetry      = "max_retry"
	RetryInterval = "retry_interval"
	Proxy         = "proxy"
	httpTimeout   = "http_timeout"

	KafkaBrokers       = "brokers"
	KafkaTopic         = "topic"
	KafkaTLS           = "tls"
	KafkaTLSSkipVerify = "tls_skip_verify"
	KafkaTLSClientAuth = "tls_client_auth"
	KafkaSASL          = "sasl"
	KafkaSASLUsername  = "sasl_username"
	KafkaSASLPassword  = "sasl_password"

# Security { #security }

There are many ways to handle security, authentication and authorization.

And it normally is a complex and "difficult" topic.

In many frameworks and systems just handling security and authentication takes a big amount of effort and code (in many cases it can be 50% or more of all the code written).