使用 OpenTelemetry 网关架构脱敏敏感数据

LANGSMITH_OTEL_ENABLED="true"
LANGSMITH_TRACING="true"
LANGSMITH_OTEL_ONLY="true"
LANGSMITH_PROJECT="my-project"
OTEL_EXPORTER_OTLP_ENDPOINT="http://<my-otel-collector-endpoint>:4318"

receivers:
  otlp:
    protocols:
      http:
        endpoint: 0.0.0.0:4318


processors:
  transform/redact:
    error_mode: ignore
    trace_statements:
      - context: span
        statements:
          - replace_pattern(attributes["gen_ai.completion"], "[\\s\\S]*", "[REDACTED]")
          - replace_pattern(attributes["gen_ai.prompt"], "[\\s\\S]*", "[REDACTED]")

exporters:
  otlphttp/langsmith:
    traces_endpoint: "https://api.smith.langchain.com/otel/v1/traces"
    headers:
      x-api-key: "${env:LANGSMITH_API_KEY}"
      Langsmith-Project: "${env:LANGSMITH_PROJECT}"


service:
  pipelines:
    traces:
      receivers: [otlp]
      processors: [transform/redact]
      exporters: [otlphttp/langsmith]

from langchain.agents import create_agent
from langchain.tools import tool
from langchain_openai import ChatOpenAI


@tool
def tell_joke(topic: str) -> str:
   llm = ChatOpenAI()
   response = llm.invoke(f"Tell me a short, funny joke about {topic}.")
   return response.content


agent = create_agent(
   model=ChatOpenAI(),
   tools=[tell_joke],
   system_prompt="When the user asks for jokes, use the tell_joke tool for each topic.",
)


topics = ["programming", "python", "kubernetes", "machine learning"]


result = agent.invoke(
   {"messages": [{"role": "user", "content": f"Tell me jokes about these topics: {', '.join(topics)}"}]}
)


print(result["messages"][-1].content)

import os

from langchain.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
from opentelemetry import trace
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import BatchSpanProcessor


project_name = os.environ["LANGSMITH_PROJECT"]
otlp_endpoint = os.environ["OTEL_EXPORTER_OTLP_ENDPOINT"]


provider = TracerProvider()
provider.add_span_processor(
   BatchSpanProcessor(
       OTLPSpanExporter(
           endpoint=otlp_endpoint+"/v1/traces",
           headers={"Langsmith-Project": project_name},
       )
   )
)
trace.set_tracer_provider(provider)


chain = ChatPromptTemplate.from_template("Tell me a joke about {topic}") | ChatOpenAI()


for topic in ["programming", "python", "databases", "kubernetes", "machine learning"]:
   print(f"Asking about {topic}...")
   result = chain.invoke({"topic": topic})
   print(f"  {result.content[:100]}\n")


provider.force_flush()
provider.shutdown()