add metric bind addr and auth proxy service

[Matheusafonsouza]

What type of PR is this?

/kind feature

What this PR does / why we need it:

• Add metric bind addr on manage yaml
• Add auth proxy service for cluster

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #3225

Special notes for your reviewer:

Checklist:

• squashed commits
• includes documentation
• adds unit tests
• adds or updates e2e tests

Release note:

None

[k8s-ci-robot]

@Matheusafonsouza: This issue is currently awaiting triage.

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[k8s-ci-robot]

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[k8s-ci-robot]

Hi @Matheusafonsouza. Thanks for your PR.

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[sedefsavas]

Thanks for the PR @Matheusafonsouza!

LGTM after minor comment.

/ok-to-test

[sedefsavas]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sedefsavas

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Needs approval from an approver in each of these files:

• OWNERS [sedefsavas]

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[sedefsavas]

failure was due to irrelevant timeout.

/test pull-cluster-api-provider-aws-test