AWS X-Ray Tracing Exporter for OpenTelemetry Collector

Status
Stability	beta
Supported pipeline types	traces
Distributions	contrib, AWS

This exporter converts OpenTelemetry spans to AWS X-Ray Segment Documents and then sends them directly to X-Ray using the PutTraceSegments API.

Data Conversion

Trace IDs and Span IDs are expected to be originally generated by either AWS API Gateway or AWS ALB and propagated by them using the X-Amzn-Trace-Id HTTP header. However, other generation sources are supported by replacing fully-random Trace IDs with X-Ray formatted Trace IDs where necessary:

AWS X-Ray IDs are the same size as W3C Trace Context IDs but differ in that the first 32 bits of a Trace ID is the Unix epoch time when the trace was started. Since X-Ray only allows submission of Trace IDs from the past 30 days, received Trace IDs are checked and spans without a valid timestamp are dropped.

This means in order for spans to appear in X-Ray, the client SDK MUST use an X-Ray ID generator. For more information, see configuring the X-Ray exporter.

The http object is populated when the component attribute value is grpc as well as http. Other synchronous call types should also result in the http object being populated.

AWS Specific Attributes

The following AWS-specific Span attributes are supported in addition to the standard names and values defined in the OpenTelemetry Semantic Conventions.

Attribute name	Notes and examples	Required?
aws.operation	The name of the API action invoked against an AWS service or resource.	No
aws.account_id	The AWS account number if accessing resource in different account.	No
aws.region	The AWS region if accessing resource in different region from app.	No
aws.request_id	AWS-generated unique identifier for the request.	No
aws.queue_url	For operations on an Amazon SQS queue, the queue's URL.	No
aws.table_name	For operations on a DynamoDB table, the name of the table.	No

Any of these values supplied are used to populate the aws object in addition to any relevant data supplied by the Span Resource object. X-Ray uses this data to generate inferred segments for the remote APIs.

Exporter Configuration

The following exporter configuration parameters are supported. They mirror and have the same affect as the comparable AWS X-Ray Daemon configuration values.

Name	Description	Default
num_workers	Maximum number of concurrent calls to AWS X-Ray to upload documents.	8
endpoint	Optionally override the default X-Ray service endpoint.
request_timeout	Number of seconds before timing out a request.	30
max_retries	Maximun number of attempts to post a batch before failing.	2
no_verify_ssl	Enable or disable TLS certificate verification.	false
proxy_address	Upload segments to AWS X-Ray through a proxy.
region	Send segments to AWS X-Ray service in a specific region.
local_mode	Local mode to skip EC2 instance metadata check.	false
resource_arn	Amazon Resource Name (ARN) of the AWS resource running the collector.
role_arn	IAM role to upload segments to a different account.
indexed_attributes	List of attribute names to be converted to X-Ray annotations.
index_all_attributes	Enable or disable conversion of all OpenTelemetry attributes to X-Ray annotations.	false

AWS Credential Configuration

This exporter follows default credential resolution for the aws-sdk-go.

Follow the guidelines for the credential configuration.