leonlnj / timber

CaraML Logging Control Plane

timber

Overview

Timber comprises of multiple services, central to logging in CaraML ecosystem.

Observation Service provides an interface for reporting observations from Client-owned systems back to CaraML platform. The logged observations will be used for evaluating the effectiveness of a given prediction instance.

Development Environment

Quick Start

a. Build dependencies

# Build Fluentd image
make build-fluentd-image

b. Setup dependencies

Fluentd BQ logging requires a GCP service account to be present at infra/local directory to work properly. Without it, logs will only be flushed to stdout.

# Starts Kafka, Fluentd services
make dependency-services

c. Setup Observation Service

cd observation-service && make observation-service

d. Sample Requests

GRPC requests

# LogObservations API
grpcurl -plaintext -d '{ "observations": [{"prediction_id": "1", "row_id": "1", "target_name": "accepted", "observation_values": [], "observation_context": []}] }' \
  localhost:9001 caraml.upi.v1.ObservationService/LogObservations

# Health checks
grpcurl -plaintext -d '{ "service": "caraml.upi.v1.ObservationService" }' \
  localhost:9001 grpc.health.v1.Health/Watch
grpcurl -plaintext -d '{ "service": "caraml.upi.v1.ObservationService" }' \
  localhost:9001 grpc.health.v1.Health/Check

# Service description
grpcurl -plaintext localhost:9001 describe

Contributing

Timber is still under active development. Please have a look at our contributing and development guides if you want to contribute to the project:

• Contribution Process for Timber

Project Structure

├── common                              # Common code to be reused both in Dataset service and Observation service
├── dataset-service                     # Dataset service implementation.
├── images                              # Docker images
│   └── fluentd                         # FluentD docker image for logwriter and observation service
|   └── observation-service             # Dockerfile for building Observation service
├── infra                               # Infrastructure setup for testing and deployment.
├── logwriter                           # Logwriter implementation.
│   └── fluent-plugin-upi-logs          # FluentD plugin for parsing Universal Prediction Interface protobuf.
├── observation-service                 # Observation service implementation.
├── scripts                             # Miscellaneous scripts.
|   └── vertagen                        # Helper for version string generation.
├── tests                               # Integration and end to end test suites.
├── CONTRIBUTING.md                     # Contributing guide.
├── LICENSE
├── Makefile
├── README.md