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Karen Bradshaw
2019-03-15 16:34:47 -04:00
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examples/transformerconfigs/README.md
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# Transformer Configurations # Transformer Configurations
Kustomize computes the configuration of a resource by applying a series of transformers: Kustomize creates new resources by applying a series of transformations to an original
set of resources. Kustomize provides the following default transformers:
- namespace transformer - namespace
- prefix/suffix transformer - prefix/suffix
- label transformer - label
- annotation transformer - annotation
- name reference transformer - name reference
- variable reference transformer - variable reference
Each transformer takes a list of resources and modifies certain fields in the resource based upon the transformer's configuration. A transformer's configuration is a list of `fieldSpec`, represented in YAML format. A `fieldSpec` list, in a transformer's configuration, determines which resource types and which fields
within those types the transformer can modify.
## FieldSpec ## FieldSpec
FieldSpec is a type that represents a path to a field in one kind of resource, such as `Job`. FieldSpec is a type that represents a path to a field in one kind of resource.
```yaml ```yaml
group: some-group group: some-group
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## Customizing transformer configurations ## Customizing transformer configurations
Kustomize has a default set of transformer configurations. You can view the default transformer configurations by saving them to a local directory by calling kustomize config save -d. Kustomize has a default set of transformer configurations. You can save the default transformer configurations to a local directory by calling `kustomize config save -d`, and then modify and use these configurations. Kustomize also supports adding new transformer configurations to kustomization.yaml. This tutorial shows how to customize those configurations to:
Kustomize also supports adding extra transformer configurations by adding configuration files in the kustomization.yaml file. This tutorial shows how to customize those configurations to:
- [support a CRD type](crd/README.md) - [support a CRD type](crd/README.md)
- add extra fields for variable substitution - add extra fields for variable substitution
- add extra fields for name reference - add extra fields for name reference