node-exporter

[lesaux]

App Addition

• I have opened an issue to discuss this app addition before submitting this pull request.
  [App Request]: node-exporter #3970

Description

Adds node-exporter to the community train.

Export OS metrics

App Information

• Upstream: https://github.com/prometheus/node_exporter
• Documentation: https://github.com/prometheus/node_exporter
• App Version: 1.10.2

Testing

Tested locally with:

• [x ] test-values.yaml

All tests passed successfully.

Icons and Screenshots

Please upload the following to the CDN:

• Icon: [https://raw.githubusercontent.com/cncf/artwork/master/projects/prometheus/icon/color/prometheus-icon-color.png]
• Screenshot 1 (optional): [attach or link]

Special Notes

• First-time setup instructions: [if applicable]
• Any other important information

Checklist

• [ x] App runs successfully locally
• [ x] Only modified files under /ix-dev/ or /library/
• [ x] README.md included
• [ x] Multiple test scenarios tested
• [ x] questions.yaml has clear descriptions and follows structure of existing apps
• [ x] All automated CI checks pass