[chore] Update usage of OTEL libraries (#2725)

* otel to 1.24
* prometheus exporter to 0.46
* bunotel to 1.1.17

Also:
* Use schemaless URL for metrics
* Add software version to tracing schema

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/exporter.go

@@ -104,7 +104,7 @@ func NewUnstarted(client Client) *Exporter {
 	}
 }
 
-// MarshalLog is the marshaling function used by the logging system to represent this exporter.
+// MarshalLog is the marshaling function used by the logging system to represent this Exporter.
 func (e *Exporter) MarshalLog() interface{} {
 	return struct {
 		Type   string

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/doc.go

@@ -28,7 +28,7 @@ The value may additionally a port, a scheme, and a path.
 The value accepts "http" and "https" scheme.
 The value should not contain a query string or fragment.
 OTEL_EXPORTER_OTLP_TRACES_ENDPOINT takes precedence over OTEL_EXPORTER_OTLP_ENDPOINT.
-The configuration can be overridden by [WithEndpoint], [WithInsecure], [WithGRPCConn] options.
+The configuration can be overridden by [WithEndpoint], [WithEndpointURL], [WithInsecure], and [WithGRPCConn] options.
 
 OTEL_EXPORTER_OTLP_INSECURE, OTEL_EXPORTER_OTLP_TRACES_INSECURE (default: "false") -
 setting "true" disables client transport security for the exporter's gRPC connection.

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/internal/otlpconfig/options.go

@@ -20,6 +20,7 @@ package otlpconfig // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/
 import (
 	"crypto/tls"
 	"fmt"
+	"net/url"
 	"path"
 	"strings"
 	"time"
@@ -32,6 +33,7 @@ import (
 
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/internal/retry"
+	"go.opentelemetry.io/otel/internal/global"
 )
 
 const (
@@ -265,6 +267,24 @@ func WithEndpoint(endpoint string) GenericOption {
 	})
 }
 
+func WithEndpointURL(v string) GenericOption {
+	return newGenericOption(func(cfg Config) Config {
+		u, err := url.Parse(v)
+		if err != nil {
+			global.Error(err, "otlptrace: parse endpoint url", "url", v)
+			return cfg
+		}
+
+		cfg.Traces.Endpoint = u.Host
+		cfg.Traces.URLPath = u.Path
+		if u.Scheme != "https" {
+			cfg.Traces.Insecure = true
+		}
+
+		return cfg
+	})
+}
+
 func WithCompression(compression Compression) GenericOption {
 	return newGenericOption(func(cfg Config) Config {
 		cfg.Traces.Compression = compression

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/options.go

@@ -64,14 +64,44 @@ func WithInsecure() Option {
 	return wrappedOption{otlpconfig.WithInsecure()}
 }
 
-// WithEndpoint sets the target endpoint the exporter will connect to. If
-// unset, localhost:4317 will be used as a default.
+// WithEndpoint sets the target endpoint the Exporter will connect to.
+//
+// If the OTEL_EXPORTER_OTLP_ENDPOINT or OTEL_EXPORTER_OTLP_METRICS_ENDPOINT
+// environment variable is set, and this option is not passed, that variable
+// value will be used. If both are set, OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+// will take precedence.
+//
+// If both this option and WithEndpointURL are used, the last used option will
+// take precedence.
+//
+// By default, if an environment variable is not set, and this option is not
+// passed, "localhost:4317" will be used.
 //
 // This option has no effect if WithGRPCConn is used.
 func WithEndpoint(endpoint string) Option {
 	return wrappedOption{otlpconfig.WithEndpoint(endpoint)}
 }
 
+// WithEndpointURL sets the target endpoint URL the Exporter will connect to.
+//
+// If the OTEL_EXPORTER_OTLP_ENDPOINT or OTEL_EXPORTER_OTLP_METRICS_ENDPOINT
+// environment variable is set, and this option is not passed, that variable
+// value will be used. If both are set, OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+// will take precedence.
+//
+// If both this option and WithEndpoint are used, the last used option will
+// take precedence.
+//
+// If an invalid URL is provided, the default value will be kept.
+//
+// By default, if an environment variable is not set, and this option is not
+// passed, "localhost:4317" will be used.
+//
+// This option has no effect if WithGRPCConn is used.
+func WithEndpointURL(u string) Option {
+	return wrappedOption{otlpconfig.WithEndpointURL(u)}
+}
+
 // WithReconnectionPeriod set the minimum amount of time between connection
 // attempts to the target endpoint.
 //

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go

@@ -177,8 +177,11 @@ func (d *client) UploadTraces(ctx context.Context, protoSpans []*tracepb.Resourc
 			if _, err := io.Copy(&respData, resp.Body); err != nil {
 				return err
 			}
+			if respData.Len() == 0 {
+				return nil
+			}
 
-			if respData.Len() != 0 {
+			if resp.Header.Get("Content-Type") == "application/x-protobuf" {
 				var respProto coltracepb.ExportTraceServiceResponse
 				if err := proto.Unmarshal(respData.Bytes(), &respProto); err != nil {
 					return err

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/doc.go

@@ -26,14 +26,14 @@ The value must contain a scheme ("http" or "https") and host.
 The value may additionally contain a port and a path.
 The value should not contain a query string or fragment.
 The configuration can be overridden by OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
-environment variable and by [WithEndpoint], [WithInsecure] options.
+environment variable and by [WithEndpoint], [WithEndpointURL], [WithInsecure] options.
 
 OTEL_EXPORTER_OTLP_TRACES_ENDPOINT (default: "https://localhost:4318/v1/traces") -
 target URL to which the exporter sends telemetry.
 The value must contain a scheme ("http" or "https") and host.
 The value may additionally contain a port and a path.
 The value should not contain a query string or fragment.
-The configuration can be overridden by [WithEndpoint], [WitnInsecure], [WithURLPath] options.
+The configuration can be overridden by [WithEndpoint], [WithEndpointURL], [WitnInsecure], and [WithURLPath] options.
 
 OTEL_EXPORTER_OTLP_HEADERS, OTEL_EXPORTER_OTLP_TRACES_HEADERS (default: none) -
 key-value pairs used as headers associated with HTTP requests.

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/internal/otlpconfig/options.go

@@ -20,6 +20,7 @@ package otlpconfig // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/
 import (
 	"crypto/tls"
 	"fmt"
+	"net/url"
 	"path"
 	"strings"
 	"time"
@@ -32,6 +33,7 @@ import (
 
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/internal/retry"
+	"go.opentelemetry.io/otel/internal/global"
 )
 
 const (
@@ -265,6 +267,24 @@ func WithEndpoint(endpoint string) GenericOption {
 	})
 }
 
+func WithEndpointURL(v string) GenericOption {
+	return newGenericOption(func(cfg Config) Config {
+		u, err := url.Parse(v)
+		if err != nil {
+			global.Error(err, "otlptrace: parse endpoint url", "url", v)
+			return cfg
+		}
+
+		cfg.Traces.Endpoint = u.Host
+		cfg.Traces.URLPath = u.Path
+		if u.Scheme != "https" {
+			cfg.Traces.Insecure = true
+		}
+
+		return cfg
+	})
+}
+
 func WithCompression(compression Compression) GenericOption {
 	return newGenericOption(func(cfg Config) Config {
 		cfg.Traces.Compression = compression

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/options.go

@@ -60,15 +60,44 @@ func (w wrappedOption) applyHTTPOption(cfg otlpconfig.Config) otlpconfig.Config
 	return w.ApplyHTTPOption(cfg)
 }
 
-// WithEndpoint allows one to set the address of the collector
-// endpoint that the driver will use to send spans. If
-// unset, it will instead try to use
-// the default endpoint (localhost:4318). Note that the endpoint
-// must not contain any URL path.
+// WithEndpoint sets the target endpoint the Exporter will connect to.
+//
+// If the OTEL_EXPORTER_OTLP_ENDPOINT or OTEL_EXPORTER_OTLP_METRICS_ENDPOINT
+// environment variable is set, and this option is not passed, that variable
+// value will be used. If both are set, OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+// will take precedence.
+//
+// If both this option and WithEndpointURL are used, the last used option will
+// take precedence.
+//
+// By default, if an environment variable is not set, and this option is not
+// passed, "localhost:4317" will be used.
+//
+// This option has no effect if WithGRPCConn is used.
 func WithEndpoint(endpoint string) Option {
 	return wrappedOption{otlpconfig.WithEndpoint(endpoint)}
 }
 
+// WithEndpointURL sets the target endpoint URL the Exporter will connect to.
+//
+// If the OTEL_EXPORTER_OTLP_ENDPOINT or OTEL_EXPORTER_OTLP_METRICS_ENDPOINT
+// environment variable is set, and this option is not passed, that variable
+// value will be used. If both are set, OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+// will take precedence.
+//
+// If both this option and WithEndpoint are used, the last used option will
+// take precedence.
+//
+// If an invalid URL is provided, the default value will be kept.
+//
+// By default, if an environment variable is not set, and this option is not
+// passed, "localhost:4317" will be used.
+//
+// This option has no effect if WithGRPCConn is used.
+func WithEndpointURL(u string) Option {
+	return wrappedOption{otlpconfig.WithEndpointURL(u)}
+}
+
 // WithCompression tells the driver to compress the sent data.
 func WithCompression(compression Compression) Option {
 	return wrappedOption{otlpconfig.WithCompression(otlpconfig.Compression(compression))}

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/version.go

@@ -16,5 +16,5 @@ package otlptrace // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace"
 
 // Version is the current release version of the OpenTelemetry OTLP trace exporter in use.
 func Version() string {
-	return "1.20.0"
+	return "1.24.0"
 }