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feat: add OpenTelemetry distributed tracing across all DECNET services

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Gated by DECNET_DEVELOPER_TRACING env var (default off, zero overhead).
When enabled, traces flow through FastAPI routes, background workers
(collector, ingester, profiler, sniffer, prober), engine/mutator
operations, and all DB calls via TracedRepository proxy.

Includes Jaeger docker-compose for local dev and 18 unit tests.
This commit is contained in:
anti
2026-04-15 23:23:13 -04:00
parent b437bc8eec
commit 65ddb0b359
14 changed files with 687 additions and 4 deletions
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5
decnet/env.py
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@@ -72,6 +72,11 @@ DECNET_ADMIN_USER: str = os.environ.get("DECNET_ADMIN_USER", "admin")
DECNET_ADMIN_PASSWORD: str = os.environ.get("DECNET_ADMIN_PASSWORD", "admin")
DECNET_DEVELOPER: bool = os.environ.get("DECNET_DEVELOPER", "False").lower() == "true"
# Tracing — set to "true" to enable OpenTelemetry distributed tracing.
# Separate from DECNET_DEVELOPER so tracing can be toggled independently.
DECNET_DEVELOPER_TRACING: bool = os.environ.get("DECNET_DEVELOPER_TRACING", "").lower() == "true"
DECNET_OTEL_ENDPOINT: str = os.environ.get("DECNET_OTEL_ENDPOINT", "http://localhost:4317")
# Database Options
DECNET_DB_TYPE: str = os.environ.get("DECNET_DB_TYPE", "sqlite").lower()
DECNET_DB_URL: Optional[str] = os.environ.get("DECNET_DB_URL")