ferruzzi commented on code in PR #56150: URL: https://github.com/apache/airflow/pull/56150#discussion_r2395703321
########## airflow-core/src/airflow/utils/otel_config.py: ########## @@ -0,0 +1,189 @@ +# +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +from __future__ import annotations + +import os +from dataclasses import dataclass +from enum import Enum +from functools import lru_cache + +import structlog + +log = structlog.getLogger(__name__) + + +def _parse_kv_str_to_dict(str_var: str) -> dict[str, str]: + """ + Convert a string of key-value pairs to a dictionary. + + Environment variables like 'OTEL_RESOURCE_ATTRIBUTES' or 'OTEL_EXPORTER_OTLP_HEADERS' + accept values with the format "key1=value1,key2=value2,..." + """ + configs = {} + if str_var: + for pair in str_var.split(","): + if "=" in pair: + k, v = pair.split("=", 1) + configs[k.strip()] = v.strip() + return configs + + +class OtelDataType(str, Enum): + """Enum with the different telemetry data types.""" + + TRACES = "traces" + METRICS = "metrics" + LOGS = "logs" + + +@dataclass(frozen=True) +class OtelConfig: + """Immutable class for holding and validating OTel config environment variables.""" + + data_type: OtelDataType # traces | metrics + endpoint: str # url + protocol: str # "grpc" or "http/protobuf" + exporter: str # OTEL_TRACES_EXPORTER | OTEL_METRICS_EXPORTER + service_name: str # default "Airflow" + headers_kv_str: str + headers: dict[str, str] + resource_attributes_kv_str: str + resource_attributes: dict[str, str] + interval_ms: int + validate: bool # true by default + + def __post_init__(self): + """Validate the environment variables where necessary.""" + if self.validate is False: + return + + endpoint_type_specific = ( + "OTEL_EXPORTER_OTLP_TRACES_ENDPOINT" + if self.data_type == OtelDataType.TRACES + else "OTEL_EXPORTER_OTLP_METRICS_ENDPOINT" + ) Review Comment: I'm a sucker for a python one-liner. They don't always make things easier, but when they do, it's beauty LOL I may not have thought through the implications of this is they use an invalid value for self.data_type though. Maybe it needs a safety catch, I'll let you think that over. :P -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
