azure-sdk-for-python: OpenTelemetry Container App AzureVMResourceDetector Exception

• azure-monitor-opentelemetry:
• 1.1.0:
• Linux:
• 3.9:

Describe the bug Auto instrumentation of FastAPI Python in Azure Container App results in a error: WARNING:Exception in detector <opentelemetry.resource.detector.azure.vm.AzureVMResourceDetector object at 0x7f011e043ac0>, ignoring The error pointing to the AzureVM detector seems random to me.

To Reproduce Steps to reproduce the behavior:

1. Create Container App Environment, configure logging to Azure Monitor and the correct log workspace you want to use for application insights as well
2. Create container App with an image with the code in the appendix
3. Set Environment variable APPLICATIONINSIGHTS_CONNECTION_STRING to a valid app insights instance
4. The replica will not activate and log : WARNING:Exception in detector <opentelemetry.resource.detector.azure.vm.AzureVMResourceDetector object at 0x7f011e043ac0>, ignoring

main.py:

from typing import Union
import logging
import os

from opentelemetry.trace import (
    SpanKind,
    get_tracer_provider,
    set_tracer_provider,
)
from opentelemetry.propagate import extract

from fastapi import FastAPI, HTTPException

from azure.monitor.opentelemetry import configure_azure_monitor

# Import the tracing api from the `opentelemetry` package.
from opentelemetry import trace

logging.basicConfig(format = "%(asctime)s:%(levelname)s:%(message)s", level = logging.WARNING)
logger = logging.getLogger(__name__)

# Configure OpenTelemetry to use Azure Monitor with the specified connection
# string.
configure_azure_monitor(
    #connection_string = os.environ["APPLICATIONINSIGHTS_CONNECTION_STRING"],
    connection_string = os.getenv("APPLICATIONINSIGHTS_CONNECTION_STRING")
    instrumentation_options = {"azure_sdk": {"enabled": False}}
    disable_offline_storage=True
)

tracer = trace.get_tracer(__name__,
                          tracer_provider=get_tracer_provider())

# Start a new span with the name "hello". This also sets this created span as the current span in this context. This span will be exported to Azure Monitor as part of the trace.
with tracer.start_as_current_span("hello"):
    print("Hello, World!")


app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}

@app.get("/testroute")
def read_root():
    with tracer.start_as_current_span(
        "error_test_request",
        #context=extract(request.headers),
        kind=SpanKind.SERVER
    ):
        logger.error("Error test endpoint was reached. . .")
        raise HTTPException(status_code=500, detail="Inernal Error")
        return {"message": "Error Test!"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}

Dockerfile:

FROM python:3.9
WORKDIR /
COPY ./requirements.txt /requirements.txt
RUN pip install --no-cache-dir --upgrade -r /requirements.txt
COPY ./ /
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "80"]

requirements.txt:

annotated-types==0.6.0
anyio==3.7.1
asgiref==3.7.2
azure-core==1.29.5
azure-core-tracing-opentelemetry==1.0.0b11
azure-monitor-opentelemetry==1.1.0
azure-monitor-opentelemetry-exporter==1.0.0b19
certifi==2023.11.17
charset-normalizer==3.3.2
click==8.1.7
Deprecated==1.2.14
exceptiongroup==1.2.0
fastapi==0.104.1
fixedint==0.1.6
h11==0.14.0
httptools==0.6.1
idna==3.4
importlib-metadata==6.8.0
isodate==0.6.1
msrest==0.7.1
oauthlib==3.2.2
opentelemetry-api==1.21.0
opentelemetry-instrumentation==0.42b0
opentelemetry-instrumentation-asgi==0.42b0
opentelemetry-instrumentation-dbapi==0.42b0
opentelemetry-instrumentation-django==0.42b0
opentelemetry-instrumentation-fastapi==0.42b0
opentelemetry-instrumentation-flask==0.42b0
opentelemetry-instrumentation-psycopg2==0.42b0
opentelemetry-instrumentation-requests==0.42b0
opentelemetry-instrumentation-urllib==0.42b0
opentelemetry-instrumentation-urllib3==0.42b0
opentelemetry-instrumentation-wsgi==0.42b0
opentelemetry-resource-detector-azure==0.1.0
opentelemetry-sdk==1.21.0
opentelemetry-semantic-conventions==0.42b0
opentelemetry-util-http==0.42b0
packaging==23.2
pydantic==2.5.2
pydantic_core==2.14.5
python-dotenv==1.0.0
PyYAML==6.0.1
requests==2.31.0
requests-oauthlib==1.3.1
six==1.16.0
sniffio==1.3.0
starlette==0.27.0
typing_extensions==4.8.0
urllib3==2.1.0
uvicorn==0.24.0.post1
uvloop==0.19.0
watchfiles==0.21.0
websockets==12.0
wrapt==1.16.0
zipp==3.17.0

Expected behavior The container app sends logs and metrics to Azure Monitor and the replica is healthy.

Screenshots