如何解决无法从asgi应用FastApi连接到在Docker上运行的Datadog Agent
我正在尝试从我的fastapi后端连接到datadog。我目前正在尝试使用docker-compose文件在localhost上执行此操作,以使我的datadog-agent和backend-container都在同一网络中运行。 这是一个最小的例子
dd-minimal
- docker-compose.yml
- backend-client
- Dockerfile
- app
- main.py
docker-compose.yml
version: "3.7"
networks:
my_network:
services:
datadog:
image: datadog/agent:latest
environment:
DD_API_KEY: <my-api-key>
DD_APM_ENABLED: 'true'
volumes:
- /var/run/docker.sock:/var/run/docker.sock
- /proc/:/host/proc/:ro
- /sys/fs/cgroup:/host/sys/fs/cgroup:ro
ports:
- "8126:8126/tcp"
networks:
- my_network
backend-web-client:
image: gql-backend-api
build:
dockerfile: Dockerfile
context: ./backend-client
environment:
DD_TRACE_ANALYTICS_ENABLED: 'true'
DD_AGENT_HOST: 172.21.0.2
ports:
- "5555:8080"
networks:
- my_network
depends_on:
- datadog
Dockerfile
FROM tiangolo/uvicorn-gunicorn-fastapi:python3.8-slim
COPY ./app /app
RUN pip install ddtrace==0.41.0
CMD exec ddtrace-run gunicorn --bind :8080 --workers 1 --threads 8 --timeout 0 main:api -k uvicorn.workers.UvicornWorker
main.py
import os
import uvicorn
from fastapi import FastAPI
api = FastAPI()
if __name__ == "__main__":
uvicorn.run(api,host="127.0.0.1",port=int(os.environ.get("PORT",8080)))
我运行docker-compose up,然后使用以下命令检查我的dd容器的ip
docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' dd-minimal_datadog_1
并在撰写文件中对其进行更新。
当我再次运行docker-compose up时,出现以下错误
- DATADOG TRACER DIAGNOSTIC - Agent not reachable. Exception raised: [Errno 111] Connection refused.
任何帮助将不胜感激
解决方法
您可能需要在datadog代理容器中设置环境变量DD_APM_NON_LOCAL_TRAFFIC=true
。
参考:https://docs.datadoghq.com/agent/docker/apm/?tab=linux#docker-apm-agent-environment-variables