how <ec2_sd_config> works in china region

[Diannone]

Hi，I am using Prometheus on ec2 in china region, and I found that <ec2_sd_config> can't work because of aws endpoint.

The ec2 endpoint in China region is ec2.cn-north-1.amazonaws.com.cn. And it is different from ec2 endpoint in global.

So how can I pass the china region ec2 endpoint to Prometheus？

[brian-brazil]

Make sure you specify the right region in China.

It makes more sense to ask questions like this on the prometheus-users mailing list rather than in a GitHub issue. On the mailing list, more people are available to potentially respond to your question, and the whole community can benefit from the answers provided.

[brian-brazil]

Actually this might be a bug on our end. Can you share your prometheus.yml?

[elbertwang]

@brian-brazil

• job_name: 'node'
  ec2_sd_configs:
  - region: cn-northwest-1
  access_key: xx
  secret_key: xx
  port: 9100

error log:
level=error ts=2018-03-12T04:42:20.768076165Z caller=ec2.go:174 component="discovery manager scrape" discovery=ec2 msg="Refresh failed" err="could not describe instances: RequestError: send request failed\ncaused by: Post https://ec2.cn-northwest-1.amazonaws.com/: dial tcp: lookup ec2.cn-northwest-1.amazonaws.com on 172.31.0.2:53: server misbehaving"

root cause :
AWS China has two regions: cn-north-1 & cn-northwest-1
both these two regions have different EC2 endpoint from global region which defined in
http://docs.amazonaws.cn/en_us/general/latest/gr/rande.html#cnnorth_region

cn-north-1: ec2.cn-north-1.amazonaws.com.cn
cn-northwest-1: ec2.cn-northwest-1.amazonaws.com.cn

[Diannone]

@elbertwang thx
@brian-brazil just like the above description

[Diannone]

@brian-brazil
Hello,May I know the time when this bug will be repaired？

Our products are all on Amazon Machines,if this bug can't repair on next release,I have to add more than 100 machine's monitor Manually

Thanks

[bege13mot]

Hi,

According to aws/aws-sdk-go#600 the issue caused by missed regions in aws-sdk-go. Made PR to update aws-sdk-go to a new version. Hope, it will be helpful.

[lock]

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