docs: add KRM function developer guide - #4726
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Add a developer guide for writing KRM functions with the Go SDK, covering a tutorial, interface selection (fn.Runner vs fn.ResourceListProcessor), testing, and containerizing. Sourced from the krm-functions-sdk docs and adapted into a Hugo subsection under guides/. Refs kptdev#4725 Signed-off-by: Fiachra Corcoran <fiachra.corcoran@est.tech>
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September 2, 2026 01:02
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Summary
Adds a developer guide for writing KRM functions with the Go SDK, as a new subsection under
guides/krm-functions/:--help/--doc/standalone file mode)fn.Runnervsfn.ResourceListProcessorThe content is sourced from the
krm-functions-sdkrepo docs and adapted into Hugo pages (front matter,relrefcross-links, absolute source links). The parentguides/_index.mdlinks to the new subsection.Testing
hugocontent rendering succeeds with norelrefresolution errors (local CSS post-processing step is blocked by a sandbox fs restriction unrelated to these changes; it builds in CI).Refs #4725
This PR was prepared with AI assistance.