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make all (generate docs) Update examples in cmd docs. make all (generate docs) functions/examples: Whitespace cleanup. functions/examples: Fix some example commands.
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.configFn and running:
kustomize config run local-resource/
This exists non-zero if there is an error.
Running the Example
Run the validator with:
kustomize config run local-resource/
This will return an error:
cpu-requests missing for container nginx
Now uncomment the resource reservations and run again:
kustomize config run local-resource/
This will return success