[processor/resourcedetection][exporter/datadog] Supress unwanted warning logs coming from EC2 metdata provider

.chloggen/dd-exporter-ec2-metadata-suppress-logs.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: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: datadogexporter
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Supress unwanted warnings logs coming from the AWS SDK when fetching EC2 metadata.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [22807]
+
+# (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: []

.chloggen/resourcedetection-ec2-metadata-suppress-logs.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: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: resourcedetectionprocessor
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Supress unwanted warnings logs coming from the AWS SDK when fetching EC2 metadata.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [22807]
+
+# (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: []

internal/metadataproviders/aws/ec2/metadata.go

@@ -6,6 +6,7 @@ package ec2 // import "github.com/open-telemetry/opentelemetry-collector-contrib
 import (
 	"context"
 
+	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/ec2metadata"
 	"github.com/aws/aws-sdk-go/aws/session"
 )
@@ -22,9 +23,14 @@ type metadataClient struct {
 
 var _ Provider = (*metadataClient)(nil)
 
+// New Provider returns a new AWS EC2 metadata provider. The provider is established
+// with a custom logger to suppress any SDK logs, in order to work around an issue in the AWS SDK Go
+// (https://github.com/aws/aws-sdk-go/issues/5116), which causes unwanted output to appear on
+// the stdout. This change can be reverted once the issue is resolved upstream and a new version
+// of the SDK is used in the provider.
 func NewProvider(sess *session.Session) Provider {
 	return &metadataClient{
-		metadata: ec2metadata.New(sess),
+		metadata: ec2metadata.New(sess, aws.NewConfig().WithLogger(aws.LoggerFunc(func(args ...any) {}))),
 	}
 }