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Unified wrapper for Elven logs interception and OpenTelemetry instrumentation in Python.

Project description

Unified Observability Py

Pacote unificado para juntar:

  • elven-logs-interceptor-python
  • elven-opentelemetry-instrumentation-py

com uma experiência única de bootstrap, config por env e API manual em Python.

Instalação

Base:

pip install elven-unified-observability-py

Com extras completos do logger:

pip install "elven-unified-observability-py[full]"

Para desenvolvimento:

pip install -e ".[dev]"

O que a lib entrega

  • init(...) manual com config Python-first
  • init_from_env() para bootstrap por ambiente
  • logger, tracer e metrics reexportados como proxies seguros
  • preload zero-code via sitecustomize
  • CLI elven-unified-observability -- <command>
  • shutdown e flush coordenados
  • fallback LOKI_* para LOGS_*
  • aliases legados ENABLE_LOGGING, ENABLE_METRICS, ENABLE_TRACING

Quick Start Manual

from elven_unified_observability import init, logger, metrics, tracer

handle = init(
    {
        "service": {
            "serviceName": "billing-service",
            "serviceVersion": "1.2.3",
            "environment": "production",
        },
        "logging": {
            "transport": {
                "url": "https://loki.example.com/loki/api/v1/push",
                "tenantId": "tenant-a",
                "authToken": "token",
                "compression": "gzip",
            },
            "interceptConsole": True,
        },
        "telemetry": {
            "metrics": {"exportIntervalMillis": 15000},
            "privacy": {"redactDbStatement": True},
        },
        "enableLogging": True,
        "enableMetrics": True,
        "enableTracing": True,
    }
)

logger.info("service started", {"service": "billing-service"})
metrics.increment("bootstrap.success", 1)
tracer.with_span("startup", lambda span: span.set_attribute("boot.ready", True))

handle.force_flush()
handle.shutdown()

Quick Start Zero-Code

  1. Crie um .env com a identidade do serviço e os endpoints.
  2. Rode a app com a CLI:
elven-unified-observability -- python app.py

Também funciona com:

elven-unified-observability -- uvicorn app:app
elven-unified-observability -- celery -A worker.app worker
elven-unified-observability -- python -m my_service

Como a precedence funciona

  1. Config explícita passada para init(...)
  2. Env da wrapper (UO_*)
  3. Env dos componentes (LOGS_*, LOKI_*, OTEL_*)
  4. Defaults das libs-base

Variáveis da wrapper

Variável Descrição
UO_ENABLED Liga/desliga tudo por default
UO_ENABLE_LOGGING Override unificado para logs
UO_ENABLE_METRICS Override unificado para métricas
UO_ENABLE_TRACING Override unificado para tracing
UO_STRICT Falha o bootstrap se qualquer componente falhar
UO_LOAD_DOTENV Controla leitura de .env no preload/CLI
UO_DOTENV_PATH Caminho alternativo para o .env

Aliases legados suportados:

  • ENABLE_LOGGING
  • ENABLE_METRICS
  • ENABLE_TRACING

Identidade unificada

A identidade do serviço é sempre derivada nesta ordem:

  1. OTEL_SERVICE_NAME
  2. LOGS_APP_NAME ou LOKI_APP_NAME
  3. default unknown-service

Versão:

  1. OTEL_SERVICE_VERSION
  2. LOGS_APP_VERSION ou LOKI_APP_VERSION
  3. default 1.0.0

Ambiente:

  1. OTEL_DEPLOYMENT_ENVIRONMENT
  2. LOGS_ENVIRONMENT ou LOKI_ENVIRONMENT
  3. ENVIRONMENT
  4. APP_ENV
  5. default development

Logging

Prefixo principal: LOGS_*

Fallback suportado: LOKI_*

Exemplos mais usados:

LOGS_URL=https://loki.example.com/loki/api/v1/push
LOGS_TENANT=my-tenant
LOGS_TOKEN=secret
LOGS_COMPRESSION=gzip
LOGS_BUFFER_MAX_SIZE=500
LOGS_FILTER_LEVELS=info,warn,error
LOGS_INTERCEPT_CONSOLE=true
LOGS_ENABLE_METRICS=true

LOGS_ENABLE_METRICS controla apenas as métricas internas do logger. Se ele não estiver definido, o pacote usa o valor unificado de UO_ENABLE_METRICS.

Telemetry

A wrapper reaproveita os OTEL_* já suportados pela lib-base.

Mais comuns:

OTEL_SERVICE_NAME=billing-service
OTEL_SERVICE_VERSION=1.2.3
OTEL_DEPLOYMENT_ENVIRONMENT=production
OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318
OTEL_EXPORTER_OTLP_PROTOCOL=http/protobuf
OTEL_TRACES_EXPORTER=otlp
OTEL_METRICS_EXPORTER=otlp
OTEL_METRIC_EXPORT_INTERVAL=15000
OTEL_PRIVACY_REDACT_DB_STATEMENT=true
OTEL_INSTR_FASTAPI=true
OTEL_INSTR_REQUESTS=true

Framework examples

FastAPI

elven-unified-observability -- uvicorn app:app --host 0.0.0.0 --port 8000

Flask

elven-unified-observability -- flask --app app run

Celery

elven-unified-observability -- celery -A worker.app worker -l info

API pública

  • init(config=None)
  • init_from_env(strict=None)
  • load_config_from_env(env=None)
  • get_handle()
  • is_initialized()
  • force_flush()
  • shutdown()
  • logger
  • tracer
  • metrics

Build e publish

Validação local:

ruff check .
pyright
pytest
python -m build
python -m twine check dist/*

Publish local:

./publish.sh --repository testpypi --dry-run
./publish.sh --repository testpypi
./publish.sh --repository pypi

Tokens esperados:

  • TEST_PYPI_API_TOKEN
  • PYPI_API_TOKEN

Segurança

  • Não versione .env real
  • Não grave token em arquivo
  • Use secrets de CI ou variáveis de ambiente locais

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