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36 lines
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Markdown
36 lines
997 B
Markdown
# Injection
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This is an example of implementing an injection function.
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This example is written in `go` and uses the `kyaml` libraries for parsing the
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input and writing the output. Writing in `go` is not a requirement.
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## Function implementation
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The function is implemented as an [image](image), and built using `make image`.
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The template is implemented as a go program, which reads a collection of input
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Resource configuration, and looks for invalid configuration.
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## Function invocation
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The function is invoked by authoring a [local Resource](local-resource)
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with `metadata.configFn` and running:
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kustomize config run local-resource/
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This exits non-zero if there is an error.
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## Running the Example
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Run the validator with:
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kustomize config run local-resource/
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This will add resource reservations to the Deployment. Change the `tshirt-size`
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annotation from `medium` to `small` and rerun:
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kustomize config run local-resource/
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Observe that the reservations have changed.
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