码头容器内无法达到数据采集代理 [英] datadog agent not reachable from inside docker container

问题描述

我在亚马逊linux ec2上安装了dd-agent。如果我直接在主机上运行我的python脚本（我使用了名为dogstatsd-python的SDK），所有的指标都可以发送到datadog（我登录到datadoghq.com并看到那里的指标）。
脚本是这样的：

从statsd导入statsd 
 statsd.connect（'localhost' 8125）
 statsd.increment（'mymetrics'）
  

但是，我启动了一个docker容器并从容器内运行相同的脚本：

  c $ c from statsd import statsd 
 statsd.connect（'172.14.0.1 '，8125）
 statsd.increment（'my metrics'）
  

'172.14.0.1 '是主机的IP，它是用命令提取的。

  netstat -nr | grep'^ 0\.0\.0\.0'| awk'{print $ 2}'
  

没有指标发送到datadog .....

我猜这可能是由于某些配置问题，如地址绑定。也许我在主机上安装的dd代理只能从'localhost'接收指标。

希望有人可以帮助我。先谢谢你。

解决方案

您将需要设置 non_local_traffic：yes c $ c> /etc/dd-agent/datadog.conf 文件。否则代理将拒绝来自容器的指标。

设置完成后，您需要重新启动代理才能使更改生效： sudo / etc /init.d/datadog-agent restart 或 sudo service datadog-agent restart

docker-dd-agent 图像启用 non_local_traffic：yes 。

I installed dd-agent on Amazon linux ec2. If I run my python script directly on the host machine (I used the SDK named "dogstatsd-python"), all the metrics can be sent to datadog (I logged in to datadoghq.com and saw the metrics there). the script is something like:

from statsd import statsd
statsd.connect('localhost', 8125)
statsd.increment('mymetrics')

However, I launched a docker container and run the same script from inside the container:

from statsd import statsd
statsd.connect('172.14.0.1', 8125)
statsd.increment('my metrics')

'172.14.0.1' is the IP of the host, which was extracted with command

netstat -nr | grep '^0\.0\.0\.0' | awk '{print $2}'

No metrics were sent to datadog at all.....

I'm guessing that maybe it's due to some configuration issue like "address binding". Maybe the dd-agent I installed on the host can only receive metrics from 'localhost'.

Hope someone could help me. Thank you in advance.

解决方案

You will need to set non_local_traffic: yes in your /etc/dd-agent/datadog.conf file. Otherwise the agent will reject metrics from containers.

After setting, you will need to restart the agent for the change to take effect: sudo /etc/init.d/datadog-agent restart or sudo service datadog-agent restart

The docker-dd-agent image enables non_local_traffic: yes by default.

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