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* update go 1.24.6 * fix non-constant format string error * update golang.org/x/tools@v0.36.0 and github.com/golangci/golangci-lint@v1.64.8 to pass execute golangci-lint * add a verpose diff output to prow test * remove pluginator binary version from generated files
Validation
This is an example of implementing a validation function.
This example is written in go and uses the kyaml libraries for parsing the
input and writing the output. Writing in go is not a requirement.
Function implementation
The function is implemented as an image, and built using make image.
The template is implemented as a go program, which reads a collection of input Resource configuration, and looks for invalid configuration.
Function invocation
The function is invoked by authoring a local Resource
with metadata.annotations.[config.kubernetes.io/function] and running:
kustomize fn run local-resource/
This exists non-zero if there is an error.
Running the Example
Run the validator with:
kustomize fn run local-resource/
This will return an error:
cpu-requests missing for container nginx
Now uncomment the resource reservations and run again:
kustomize fn run local-resource/
This will return success