feat: Allow configuring system wide ignore differences for all resources

[leoluz]

Fix #7926

Signed-off-by: Leonardo Luz Almeida leonardo_almeida@intuit.com

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[codecov]

Codecov Report

Merging #8224 (c5eef88) into master (988d760) will increase coverage by 0.00%.
The diff coverage is 56.25%.

@@           Coverage Diff           @@
##           master    #8224   +/-   ##
=======================================
  Coverage   41.61%   41.61%           
=======================================
  Files         174      174           
  Lines       22717    22725    +8     
=======================================
+ Hits         9453     9458    +5     
- Misses      11908    11910    +2     
- Partials     1356     1357    +1     

Impacted Files	Coverage Δ
controller/sync.go	56.96% <50.00%> (-0.55%)	⬇️
util/argo/diff/normalize.go	44.00% <50.00%> (+4.86%)	⬆️
util/settings/settings.go	47.14% <100.00%> (+0.12%)	⬆️

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[alexmt]

Please add resource.customizations.ignoreDifferences.all to https://github.com/argoproj/argo-cd/blob/master/docs/operator-manual/argocd-cm.yaml as well.

[leoluz]

Good point! Forgot about that file.
Pushed a new commit.

[alexmt]

Add minor comment about updating argocd-cm.yaml. LGTM once it is resolved.

[alexmt]

LGTM