Prometheus exporter not able to read/open certificate file for tls

[ankitb11]

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Problem

I am trying to enable tls for my prometheus exporter, but for some reason the exported is unable to read cert_file, but is able to read the key file.

vector::sinks::prometheus::exporter: Failed to start Prometheus exporter: Could not open certificate file "/home/pi/vector-cert/cert.pem": No such file or directory (os error 2)

i have the correct permission set for this file

-rwxrwxrwx 1 pi pi 1939 Jan 11 19:38 cert.pem

I generated these files using command

openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -sha256 -days 365

Any pointers about what i am doing wrong?

Configuration

prometheus_metrics:
    type: prometheus_exporter
    inputs:
      - parse_metrics
    address: 0.0.0.0:9598
    flush_period_secs: 30
    tls:
      enabled: true
      crt_file: "/home/pi/vector-cert/cert.pem"
      key_file: "/home/pi/vector-cert/key.pem"
      key_pass: "<>"
      verify_hostname: false
      verify_certificate: false 

Version

vector 0.43.1 (aarch64-unknown-linux-musl e30bf1f 2024-12-10 16:14:47.175528383)

Debug Output

No response

Example Data

No response

Additional Context

No response

References

No response