Add CloudWatch EMF exporter foundation with basic Gauge support #382
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This PR introduces the core structure for the CloudWatch EMF (Embedded Metric Format) exporter for OpenTelemetry Python. This foundation includes: Core Features: - CloudWatchEMFExporter class with full initialization - Basic EMF log structure creation - Gauge metric conversion and export - Unit mapping from OTel to CloudWatch units - CloudWatch Logs integration with log group/stream management - Metric grouping by attributes and timestamps - Basic error handling and logging Architecture: - Follows OTel MetricExporter interface - Uses boto3 for CloudWatch Logs integration - Implements proper resource attribute handling - Supports DELTA temporality for CloudWatch compatibility Testing: - Comprehensive unit tests for core functionality - Mock-based testing to avoid AWS dependencies - Tests for initialization, conversion, and basic export flow Future PRs will add: - Support for Sum, Histogram, and ExponentialHistogram metrics - Advanced batching and CloudWatch Logs constraints - Enhanced error handling and validation 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
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thpierce
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Jun 5, 2025
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| Args: | ||
| namespace: CloudWatch namespace for metrics | ||
| log_group_name: CloudWatch log group name | ||
| log_stream_name: CloudWatch log stream name (auto-generated if None) | ||
| aws_region: AWS region (auto-detected if None) | ||
| preferred_temporality: Optional dictionary mapping instrument types to aggregation temporality | ||
| **kwargs: Additional arguments passed to boto3 client |
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I think we may have a requirement on resource_to_telemetry_conversion - lets discuss.
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This PR introduces the core structure for the CloudWatch EMF exporter for sending custom metrics. This foundation includes:
Changes:
Testing:
Future PRs will add:
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