Change default OTLP/HTTP port number

cmd/configschema/docsgen/docsgen/testdata/otlp-receiver.json

@@ -270,7 +270,7 @@
               "Name": "endpoint",
               "Type": "",
               "Kind": "string",
-              "Default": "0.0.0.0:55681",
+              "Default": "0.0.0.0:4318",
               "Doc": "Endpoint configures the listening address for the server.\n",
               "Fields": null
             },

exporter/otlphttpexporter/README.md

@@ -9,18 +9,18 @@ incompatible way any time.*
 
 The following settings are required:
 
-- `endpoint` (no default): The target base URL to send data to (e.g.: https://example.com:55681).
+- `endpoint` (no default): The target base URL to send data to (e.g.: https://example.com:4318).
   To send each signal a corresponding path will be added to this base URL, i.e. for traces
   "/v1/traces" will appended, for metrics "/v1/metrics" will be appended, for logs
   "/v1/logs" will be appended. 
 
 The following settings can be optionally configured:
 
-- `traces_endpoint` (no default): The target URL to send trace data to (e.g.: https://example.com:55681/v1/traces).
+- `traces_endpoint` (no default): The target URL to send trace data to (e.g.: https://example.com:4318/v1/traces).
    If this setting is present the `endpoint` setting is ignored for traces.
-- `metrics_endpoint` (no default): The target URL to send metric data to (e.g.: https://example.com:55681/v1/metrics).
+- `metrics_endpoint` (no default): The target URL to send metric data to (e.g.: https://example.com:4318/v1/metrics).
    If this setting is present the `endpoint` setting is ignored for metrics.
-- `logs_endpoint` (no default): The target URL to send log data to (e.g.: https://example.com:55681/v1/logs).
+- `logs_endpoint` (no default): The target URL to send log data to (e.g.: https://example.com:4318/v1/logs).
    If this setting is present the `endpoint` setting is ignored logs.
 
 - `insecure` (default = false): when set to true disables verifying the server's
@@ -45,7 +45,7 @@ Example:
 ```yaml
 exporters:
   otlphttp:
-    endpoint: https://example.com:55681/v1/traces
+    endpoint: https://example.com:4318/v1/traces
 ```
 
 The full list of settings exposed for this exporter are documented [here](./config.go)

receiver/otlpreceiver/README.md

@@ -25,7 +25,7 @@ receivers:
 
 The following settings are configurable:
 
-- `endpoint` (default = 0.0.0.0:4317 for grpc protocol, 0.0.0.0:55681 http protocol):
+- `endpoint` (default = 0.0.0.0:4317 for grpc protocol, 0.0.0.0:4318 http protocol):
   host:port to which the receiver is going to receive data. The valid syntax is
   described at https://github.com/grpc/grpc/blob/master/doc/naming.md.
 
@@ -46,7 +46,7 @@ serialization](https://developers.google.com/protocol-buffers/docs/proto3#json).
 
 To write traces with HTTP/JSON, `POST` to `[address]/v1/traces` for traces,
 to `[address]/v1/metrics` for metrics, to `[address]/v1/logs` for logs. The default
-port is `55681`.
+port is `4318`.
 
 The HTTP/JSON endpoint can also optionally configure
 [CORS](https://fetch.spec.whatwg.org/#cors-protocol), which is enabled by
@@ -58,7 +58,7 @@ receivers:
   otlp:
     protocols:
       http:
-        endpoint: "localhost:55681"
+        endpoint: "localhost:4318"
         cors_allowed_origins:
         - http://test.com
         # Origins can have wildcards with *, use * by itself to match any origin.

receiver/otlpreceiver/config.md

@@ -73,7 +73,7 @@ Config defines configuration for OTLP receiver.
 
 | Name | Type | Default | Docs |
 | ---- | ---- | ------- | ---- |
-| endpoint |string| 0.0.0.0:55681 | Endpoint configures the listening address for the server.  |
+| endpoint |string| 0.0.0.0:4318 | Endpoint configures the listening address for the server.  |
 | tls_settings |[configtls-TLSServerSetting](#configtls-TLSServerSetting)| <no value> | TLSSetting struct exposes TLS client configuration.  |
 | cors_allowed_origins |[]string| <no value> | CorsOrigins are the allowed CORS origins for HTTP/JSON requests to grpc-gateway adapter for the OTLP receiver. See github.com/rs/cors An empty list means that CORS is not enabled at all. A wildcard (*) can be used to match any origin or one or more characters of an origin.  |
 | cors_allowed_headers |[]string| <no value> | CorsHeaders are the allowed CORS headers for HTTP/JSON requests to grpc-gateway adapter for the OTLP receiver. See github.com/rs/cors CORS needs to be enabled first by providing a non-empty list in CorsOrigins A wildcard (*) can be used to match any header.  |

receiver/otlpreceiver/config_test.go

@@ -139,7 +139,7 @@ func TestLoadConfig(t *testing.T) {
 					ReadBufferSize: 512 * 1024,
 				},
 				HTTP: &confighttp.HTTPServerSettings{
-					Endpoint: "0.0.0.0:55681",
+					Endpoint: "0.0.0.0:4318",
 					TLSSetting: &configtls.TLSServerSetting{
 						TLSSetting: configtls.TLSSetting{
 							CertFile: "test.crt",
@@ -155,7 +155,7 @@ func TestLoadConfig(t *testing.T) {
 			ReceiverSettings: config.NewReceiverSettings(config.NewIDWithName(typeStr, "cors")),
 			Protocols: Protocols{
 				HTTP: &confighttp.HTTPServerSettings{
-					Endpoint:    "0.0.0.0:55681",
+					Endpoint:    "0.0.0.0:4318",
 					CorsOrigins: []string{"https://*.test.com", "https://test.com"},
 				},
 			},
@@ -166,7 +166,7 @@ func TestLoadConfig(t *testing.T) {
 			ReceiverSettings: config.NewReceiverSettings(config.NewIDWithName(typeStr, "corsheader")),
 			Protocols: Protocols{
 				HTTP: &confighttp.HTTPServerSettings{
-					Endpoint:    "0.0.0.0:55681",
+					Endpoint:    "0.0.0.0:4318",
 					CorsOrigins: []string{"https://*.test.com", "https://test.com"},
 					CorsHeaders: []string{"ExampleHeader"},
 				},

receiver/otlpreceiver/factory.go

@@ -31,8 +31,9 @@ const (
 	typeStr = "otlp"
 
 	defaultGRPCEndpoint = "0.0.0.0:4317"
-	defaultHTTPEndpoint = "0.0.0.0:55681"
+	defaultHTTPEndpoint = "0.0.0.0:4318"
 	legacyGRPCEndpoint  = "0.0.0.0:55680"
+	legacyHTTPEndpoint  = "0.0.0.0:55681"
 )
 
 // NewFactory creates a new OTLP receiver factory.

receiver/otlpreceiver/otlp.go

@@ -155,6 +155,18 @@ func (r *otlpReceiver) startProtocolServers(host component.Host) error {
 		if err != nil {
 			return err
 		}
+		if r.cfg.HTTP.Endpoint == defaultHTTPEndpoint {
+			r.logger.Info("Setting up a second HTTP listener on legacy endpoint " + legacyHTTPEndpoint)
+
+			// Copy the config.
+			cfgLegacyHTTP := r.cfg.HTTP
+			// And use the legacy endpoint.
+			cfgLegacyHTTP.Endpoint = legacyHTTPEndpoint
+			err = r.startHTTPServer(cfgLegacyHTTP, host)
+			if err != nil {
+				return err
+			}
+		}
 	}
 
 	return err

website_docs/configuration.md

@@ -330,7 +330,7 @@ exporters:
 
   # Data sources: traces, metrics
   otlphttp:
-    endpoint: https://example.com:55681/v1/traces
+    endpoint: https://example.com:4318/v1/traces
 
   # Data sources: metrics
   prometheus: