gloo: copy labels from upstream

[knechtionscoding]

Copy the Labels over from the upstream as well as config values. This ensures that gatekeeper or OPA validations can pass.

[saiskee]

glooUpstreamWithConfig.Metadata.Labels right?

[knechtionscoding]

I don't think so? This defines from the configSpec what labels to pass to the other upstream objects. glooUpstreamWithConfig.Metadata.Labels might make sense here: https://github.com/KnechtionsCoding/flagger/blob/35c8957a5585f9aa7d4446fd211c0289baa7a6ea/pkg/router/gloo.go#L310 but I think that declaration is already correct.

But I may be misunderstanding the flow here.

[codecov-commenter]

Codecov Report

Merging #932 (35c8957) into main (8137a25) will decrease coverage by 0.03%.
The diff coverage is 28.57%.

@@            Coverage Diff             @@
##             main     #932      +/-   ##
==========================================
- Coverage   56.92%   56.89%   -0.04%     
==========================================
  Files          70       70              
  Lines        5825     5832       +7     
==========================================
+ Hits         3316     3318       +2     
- Misses       2018     2022       +4     
- Partials      491      492       +1     

Impacted Files	Coverage Δ
pkg/router/gloo.go	73.36% <28.57%> (-1.52%)	⬇️

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[stefanprodan]

Flagger copies labels to the generated objects based on the --include-label-prefix arg. Please use the same logic here.

[stefanprodan]

LGTM

Thanks @knechtionscoding