Implement healthcheck monitoring for WhatsApp proxy container

[umairchudary3-art]

Summary

Set up automated monitoring and alerts for the healthcheck status of the WhatsApp proxy container, based on the logic in proxy/src/healthcheck.sh.

Details

• The healthcheck.sh script performs a Layer 4 healthcheck for the *.whatsapp.net backend via HAProxy stats on localhost:8199.
• The script checks if the health check returned anything other than "Layer4 check passed" for *.whatsapp_net entries and will exit with a non-zero code if failures are detected.
• When the check fails, an error message is printed and the container exits with code -1.

Tasks

• Review and document the current healthcheck script implementation.
• Set up monitoring to detect failed healthchecks, triggering an alert or notification whenever the script exits with failure.
• Optionally, extend healthcheck logic for other backends or protocols if needed.
• Ensure logging captures details from failed checks for diagnostics.

Reference

• Source: proxy/src/healthcheck.sh

Acceptance Criteria

• Monitoring and alerting are enabled for healthcheck failures.
• Failure logs include description output for diagnosis.
• No changes to functional healthcheck logic unless explicitly requested.

[sambaccessnow]

this is a basic feature will allow a wide usage of proxies for whatsapp.
The healthcheck will inform the mantainer (and maybe also the user in future) on how the status of the proxy is

Right now if the proxy doesn't work the client doesn't have any feedback from the app, it's just not receiving any messages anymore and it's an issue

To mitigate this and improve the monitoring the proxy should be able to be inform via an healthcheck if the proxy operations are not working correctly

👍 +1 for this

[getreidap-png]

HBI