awss3exporter: Add Protocol Buf storage format

.chloggen/awss3-add-protobuf-marshaller.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: awss3exporter
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Add the ability to export trace/log/metrics in OTLP ProtoBuf format."
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [30682]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

exporter/awss3exporter/README.md

@@ -40,6 +40,7 @@ The following exporter configuration parameters are supported.
 Marshaler determines the format of data sent to AWS S3. Currently, the following marshalers are implemented:
 
 - `otlp_json` (default): the [OpenTelemetry Protocol format](https://github.com/open-telemetry/opentelemetry-proto), represented as json.
+- `otlp_proto`: the [OpenTelemetry Protocol format](https://github.com/open-telemetry/opentelemetry-proto), represented as Protocol Buffers. A single protobuf message is written into each object.
 - `sumo_ic`: the [Sumo Logic Installed Collector Archive format](https://help.sumologic.com/docs/manage/data-archiving/archive/).
   **This format is supported only for logs.**
 

exporter/awss3exporter/config.go

@@ -26,8 +26,9 @@ type S3UploaderConfig struct {
 type MarshalerType string
 
 const (
-	OtlpJSON MarshalerType = "otlp_json"
-	SumoIC   MarshalerType = "sumo_ic"
+	OtlpProtobuf MarshalerType = "otlp_proto"
+	OtlpJSON     MarshalerType = "otlp_json"
+	SumoIC       MarshalerType = "sumo_ic"
 )
 
 // Config contains the main configuration options for the s3 exporter

exporter/awss3exporter/config_test.go

@@ -179,4 +179,18 @@ func TestMarshallerName(t *testing.T) {
 			MarshalerName: "sumo_ic",
 		},
 	)
+
+	e = cfg.Exporters[component.NewIDWithName("awss3", "proto")].(*Config)
+
+	assert.Equal(t, e,
+		&Config{
+			S3Uploader: S3UploaderConfig{
+				Region:      "us-east-1",
+				S3Bucket:    "bar",
+				S3Partition: "minute",
+			},
+			MarshalerName: "otlp_proto",
+		},
+	)
+
 }

exporter/awss3exporter/marshaler.go

@@ -26,6 +26,11 @@ var (
 func newMarshaler(mType MarshalerType, logger *zap.Logger) (marshaler, error) {
 	marshaler := &s3Marshaler{logger: logger}
 	switch mType {
+	case OtlpProtobuf:
+		marshaler.logsMarshaler = &plog.ProtoMarshaler{}
+		marshaler.tracesMarshaler = &ptrace.ProtoMarshaler{}
+		marshaler.metricsMarshaler = &pmetric.ProtoMarshaler{}
+		marshaler.fileFormat = "binpb"
 	case OtlpJSON:
 		marshaler.logsMarshaler = &plog.JSONMarshaler{}
 		marshaler.tracesMarshaler = &ptrace.JSONMarshaler{}

exporter/awss3exporter/marshaler_test.go

@@ -18,6 +18,12 @@ func TestMarshaler(t *testing.T) {
 		require.NotNil(t, m)
 		assert.Equal(t, m.format(), "json")
 	}
+	{
+		m, err := newMarshaler("otlp_proto", zap.NewNop())
+		assert.NoError(t, err)
+		require.NotNil(t, m)
+		assert.Equal(t, m.format(), "binpb")
+	}
 	{
 		m, err := newMarshaler("sumo_ic", zap.NewNop())
 		assert.NoError(t, err)

exporter/awss3exporter/testdata/marshaler.yaml

@@ -7,6 +7,12 @@ exporters:
       s3_bucket: "foo"
     marshaler: sumo_ic
 
+  awss3/proto:
+    s3uploader:
+      s3_bucket: "bar"
+    marshaler: otlp_proto
+
+
 processors:
   nop:
 
@@ -15,4 +21,4 @@ service:
     traces:
       receivers: [nop]
       processors: [nop]
-      exporters: [awss3]
+      exporters: [awss3, awss3/proto]