add healthy check and some logs

[River-sh]

No description provided.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (e335917) 36.12% compared to head (44173d7) 36.12%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
pkg/networkengine/vpndriver/libreswan/libreswan.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #157   +/-   ##
=======================================
  Coverage   36.12%   36.12%           
=======================================
  Files          12       12           
  Lines        1431     1431           
=======================================
  Hits          517      517           
  Misses        814      814           
  Partials      100      100           

Flag	Coverage Δ
unittests	36.12% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.