How do I re-use a value?

[zhech2]

We have many images with the same tag and private registry:

images:
- name: image1
  newName: privateregistry/image1
  newTag: TAG1
- name: image2
  newName: privateregistry/image2
  newTag: TAG1
# + more

The registry and TAGS are duplicated.

Is there a way to define a local constant (to a file) to prevent this kind of duplication?

[aodinokov]

@zhech2
Here is the old way of doing de-duplication of data: https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/vars/ - most likely will be deprecated, but not clear when.
Here is what is coming (very likely - next release):
#3492

[natasha41575]

Yes, @aodinokov is right. We will deprecate vars and replace it with a replacements field - this will be available next release. It will allow you to copy a field (or part of a field) from one resource to the field (or part of a field) of another resource, or another field of the same resource.

You can see what sorts of things this replacements field will support in the regression tests for the filter here, and our e2e tests here.

You can also see all the fields that will be allowed in a replacement here.

I am working on adding documentation for this feature to the site.