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[helm] add rbac.proxier config #1451

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alice-sawatzky
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Description of the change

Add options to the Helm chart to configure the proxier Role, and its RoleBinding.

Benefits

This allows the user to override the default RoleBinding that grants system:authenticated the proxier role. system:authenticated is not a very safe option in a lot of clusters, so it's important to expose this option.

Possible drawbacks

This was written to preserve existing behavior by default, so as to not break compatibility. This isn't ideal as the existing behavior is insecure on GKE (and possibly other contexts as well), but since it doesn't directly expose anything damaging (but rather is a defense-in-depth measure), it's probably OK to just highlight the importance of changing this in the documentation.

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Additional information

@alemorcuq
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Thanks for your PR, @alice-sawatzky. We will review it later this week.

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@alemorcuq alemorcuq left a comment

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Thanks for the PR, @alice-sawatzky. Please, check my comments below.

helm/sealed-secrets/templates/role-binding.yaml Outdated Show resolved Hide resolved
helm/sealed-secrets/values.yaml Outdated Show resolved Hide resolved
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@alemorcuq alemorcuq merged commit 883c672 into bitnami-labs:main Feb 14, 2024
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2 participants