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Add docs for new advanced NamespaceTransformer config options #290

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Jul 29, 2022
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Add docs for new advanced NamespaceTransformer config options #290

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25 changes: 18 additions & 7 deletions site/content/en/references/kustomize/builtins/_index.md
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Expand Up @@ -291,8 +291,19 @@ namespace: my-namespace

> [types.ObjectMeta]
>
> SetRoleBindingSubjects string
>
> UnsetOnly bool
>
> FieldSpecs \[\][config.FieldSpec]

`unsetOnly` is false by default. When true, NamespaceTransformer will only set namespace fields that are currently unset (empty string or missing). It is available in Kustomize v4.5.6+.

`setRoleBindingSubjects` controls NamespaceTransformer's handling of `subjects[].namespace` fields within `RoleBinding` and `ClusterRoleBinding` objects. It is available in Kustomize v4.5.6+ and has three possible values:
* `defaultOnly` (default): updates the namespaces of subjects with the name "default".
* `allServiceAccounts`: updates the namespaces of all subjects with `kind: ServiceAccount`.
* `none`: no subjects updated.

#### Example
>
> ```bash
Expand All @@ -301,17 +312,17 @@ namespace: my-namespace
> metadata:
> name: not-important-to-example
> namespace: test
> setRoleBindingSubjects: none
> unsetOnly: true
> fieldSpecs:
> - path: metadata/namespace
> - path: metadata/name
> kind: Namespace
> create: true
> - path: subjects
> kind: RoleBinding
> group: rbac.authorization.k8s.io
> - path: subjects
> kind: ClusterRoleBinding
> group: rbac.authorization.k8s.io
> ```

This example will update the `metadata/name` field of all Namespace objects and the `metadata/namespace` field of all other objects (no fieldspec is required for this), if and only if they do not already have a value.


## _PatchesJson6902_

### Usage via `kustomization.yaml`
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