chore(outputs.amqp): Remove deprecated options from sample config (#15873)

plugins/outputs/amqp/README.md

@@ -33,10 +33,6 @@ to use them.
 ```toml @sample.conf
 # Publishes metrics to an AMQP broker
 [[outputs.amqp]]
-  ## Broker to publish to.
-  ##   deprecated in 1.7; use the brokers option
-  # url = "amqp://localhost:5672/influxdb"
-
   ## Brokers to publish to.  If multiple brokers are specified a random broker
   ## will be selected anytime a connection is established.  This can be
   ## helpful for load balancing when not using a dedicated load balancer.
@@ -85,14 +81,6 @@ to use them.
   ##   One of "transient" or "persistent".
   # delivery_mode = "transient"
 
-  ## InfluxDB database added as a message header.
-  ##   deprecated in 1.7; use the headers option
-  # database = "telegraf"
-
-  ## InfluxDB retention policy added as a message header
-  ##   deprecated in 1.7; use the headers option
-  # retention_policy = "default"
-
   ## Static headers added to each published message.
   # headers = { }
   # headers = {"database" = "telegraf", "retention_policy" = "default"}

plugins/outputs/amqp/amqp.go

@@ -88,29 +88,27 @@ func (q *AMQP) SetSerializer(serializer serializers.Serializer) {
 	q.serializer = serializer
 }
 
-func (q *AMQP) Connect() error {
-	if q.config == nil {
-		clientConfig, err := q.makeClientConfig()
-		if err != nil {
-			return err
-		}
-		q.config = clientConfig
+func (q *AMQP) Init() error {
+	var err error
+	q.config, err = q.makeClientConfig()
+	if err != nil {
+		return err
 	}
 
-	var err error
 	q.encoder, err = internal.NewContentEncoder(q.ContentEncoding)
 	if err != nil {
 		return err
 	}
 
-	q.client, err = q.connect(q.config)
-	if err != nil {
-		return err
-	}
-
 	return nil
 }
 
+func (q *AMQP) Connect() error {
+	var err error
+	q.client, err = q.connect(q.config)
+	return err
+}
+
 func (q *AMQP) Close() error {
 	if q.client != nil {
 		return q.client.Close()
@@ -323,13 +321,15 @@ func connect(clientConfig *ClientConfig) (Client, error) {
 func init() {
 	outputs.Add("amqp", func() telegraf.Output {
 		return &AMQP{
-			URL:             DefaultURL,
-			ExchangeType:    DefaultExchangeType,
-			AuthMethod:      DefaultAuthMethod,
-			Database:        DefaultDatabase,
-			RetentionPolicy: DefaultRetentionPolicy,
-			Timeout:         config.Duration(time.Second * 5),
-			connect:         connect,
+			Brokers:      []string{DefaultURL},
+			ExchangeType: DefaultExchangeType,
+			AuthMethod:   DefaultAuthMethod,
+			Headers: map[string]string{
+				"database":         DefaultDatabase,
+				"retention_policy": DefaultRetentionPolicy,
+			},
+			Timeout: config.Duration(time.Second * 5),
+			connect: connect,
 		}
 	})
 }

plugins/outputs/amqp/amqp_test.go

@@ -52,9 +52,11 @@ func TestConnect(t *testing.T) {
 				ExchangeType:       DefaultExchangeType,
 				ExchangeDurability: "durable",
 				AuthMethod:         DefaultAuthMethod,
-				Database:           DefaultDatabase,
-				RetentionPolicy:    DefaultRetentionPolicy,
-				Timeout:            config.Duration(time.Second * 5),
+				Headers: map[string]string{
+					"database":         DefaultDatabase,
+					"retention_policy": DefaultRetentionPolicy,
+				},
+				Timeout: config.Duration(time.Second * 5),
 				connect: func(_ *ClientConfig) (Client, error) {
 					return NewMockClient(), nil
 				},
@@ -150,6 +152,7 @@ func TestConnect(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
+			require.NoError(t, tt.output.Init())
 			err := tt.output.Connect()
 			tt.errFunc(t, tt.output, err)
 		})

plugins/outputs/amqp/sample.conf

@@ -1,9 +1,5 @@
 # Publishes metrics to an AMQP broker
 [[outputs.amqp]]
-  ## Broker to publish to.
-  ##   deprecated in 1.7; use the brokers option
-  # url = "amqp://localhost:5672/influxdb"
-
   ## Brokers to publish to.  If multiple brokers are specified a random broker
   ## will be selected anytime a connection is established.  This can be
   ## helpful for load balancing when not using a dedicated load balancer.
@@ -52,14 +48,6 @@
   ##   One of "transient" or "persistent".
   # delivery_mode = "transient"
 
-  ## InfluxDB database added as a message header.
-  ##   deprecated in 1.7; use the headers option
-  # database = "telegraf"
-
-  ## InfluxDB retention policy added as a message header
-  ##   deprecated in 1.7; use the headers option
-  # retention_policy = "default"
-
   ## Static headers added to each published message.
   # headers = { }
   # headers = {"database" = "telegraf", "retention_policy" = "default"}