Update monitoring mixin

[jpkrohling]

Closes #2956

Signed-off-by: Juraci Paixão Kröhling [email protected]

[jpkrohling]

@gouthamve, as the original author of this mixin, would you like to review it?
@esnible, would you be open to trying this out as well? I tested it locally and seems fine, but would be good to have a confirmation from you as well.

[codecov]

Codecov Report

Merging #3331 (e3251e5) into master (a240917) will decrease coverage by 0.05%.
The diff coverage is n/a.

❗ Current head e3251e5 differs from pull request most recent head 4dcb887. Consider uploading reports for the commit 4dcb887 to get more accurate results

@@            Coverage Diff             @@
##           master    #3331      +/-   ##
==========================================
- Coverage   96.01%   95.96%   -0.06%     
==========================================
  Files         259      259              
  Lines       15434    15434              
==========================================
- Hits        14819    14811       -8     
- Misses        522      528       +6     
- Partials       93       95       +2     

Impacted Files	Coverage Δ
pkg/config/tlscfg/cert_watcher.go	92.63% <0.00%> (-2.11%)	⬇️
cmd/query/app/server.go	94.11% <0.00%> (-1.48%)	⬇️
cmd/query/app/static_handler.go	95.80% <0.00%> (-1.20%)	⬇️
plugin/storage/integration/integration.go	78.88% <0.00%> (-0.40%)	⬇️

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[gouthamve]

LGTM

[jpkrohling]

@jaegertracing/jaeger-maintainers , would one of you please review?

[albertteoh]

LGTM, just a couple of suggestions.