feat(kuma-cp) localhost is not an admin on kubernetes

[jakubdyszkiewicz]

Summary

Follow up to bootstrap admin token. On Kubernetes, we create token and mesh operator can access it by executing kubectl get secrets -n kuma-system. There is no need to enable localhost is admin functionality.

Issues resolved

No issue

Documentation

• Included in API Server authentication kuma-website#554

Testing

• Unit tests
• E2E tests
• Manual testing on Universal
• Manual testing on Kubernetes

Backwards compatibility

• No backporting

[codecov-commenter]

Codecov Report

Merging #3003 (d0ff354) into master (6f9137a) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #3003      +/-   ##
==========================================
- Coverage   52.26%   52.25%   -0.01%     
==========================================
  Files         913      913              
  Lines       52805    52840      +35     
==========================================
+ Hits        27596    27611      +15     
- Misses      23011    23029      +18     
- Partials     2198     2200       +2     

Impacted Files	Coverage Δ
...atibility/cp_compatibility_kubernetes_multizone.go	0.00% <0.00%> (ø)
test/e2e/helm/kuma_helm_upgrade.go	0.00% <0.00%> (ø)
test/framework/k8s_cluster.go	0.00% <0.00%> (ø)
test/framework/k8s_controlplane.go	0.00% <0.00%> (ø)
pkg/kds/client/sink.go	59.45% <0.00%> (-2.71%)	⬇️
pkg/core/resources/model/rest/resource.go	69.23% <0.00%> (+1.28%)	⬆️
pkg/dns/vips_allocator.go	74.00% <0.00%> (+1.33%)	⬆️
pkg/core/resources/manager/cache.go	85.71% <0.00%> (+2.59%)	⬆️
pkg/plugins/runtime/gateway/route/sorter.go	66.66% <0.00%> (+5.12%)	⬆️
pkg/core/bootstrap/autoconfig.go	54.46% <0.00%> (+8.03%)	⬆️

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[michaelbeaumont]

LGTM

[bartsmykla]

lgtm