checking for annotation changes before any DD API calls

[lucasreed]

This should fix #72

[lucasreed]

Now if an annotation changes, we still see duplicate OnUpdate calls with a new revision number, but at least now if any other part of the deployment/namespace is changed, it shouldn't trigger a GET from the Datadog API to get the current monitor at all.

[codecov]

Codecov Report

Merging #74 into master will decrease coverage by 1.9%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #74      +/-   ##
==========================================
- Coverage   57.82%   55.92%   -1.91%     
==========================================
  Files           7        7              
  Lines         441      456      +15     
==========================================
  Hits          255      255              
- Misses        161      176      +15     
  Partials       25       25

Impacted Files	Coverage Δ
pkg/config/config.go	75.19% <ø> (ø)	⬆️
pkg/controller/controller.go	39.84% <0%> (-3.24%)	⬇️
pkg/handler/handler.go	52.04% <0%> (-2.8%)	⬇️

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[rbren]

Nice!

[mjhuber]

👍