Metrics endpoint throws "Invalid username or password"

[somnathpawar]

Describe the bug
I have MongoDB 4.2 container running on K8s. There is a side container for MongoDB exporter on the same pod. I had DCU mongodb exporter before but it seems off with MongoDB 4.2 upgrade. So now I have replaced the image with Percona docker image "percona/mongodb_exporter:0.31.0". Pod get created properly with both the containers, but somehow when I try to access the pod's /metrics endpoint for mongodb_exporter, it throws following error:

curl -m 2 http://10.210.104.101:9216/metrics
Invalid username or password

I guess that's why the Prometheus also shows "server returned HTTP status 401 Unauthorized" for this endpoint." error on it's dashboard. So metrics are not being exported.

To Reproduce
Steps to reproduce the behavior:

1. I have passed "MONGODB_URI" & "HTTP_AUTH" parameters as environment variables through Kubernetes container config.

Environment

• OS,: Linux
• environment (docker, k8s, etc): K8s
• MongoDB version: 4.2.20

I am not sure if any other parameter/environment variable is required to pass the authentication details, as HTTP_AUTH has been already set with pattern as "{username}:{password}".

Can anyone help with this? Thanks in advance.

[denisok]

Hi @somnathpawar ,

this exporter doesn't support HTTP_AUTH as far as I know. What that env suppose to do?

Maybe related to #380 #559