Validation on Dev & Platform Engineering Hubhttps://rhidayat.work/topics/validation/Recent content in Validation on Dev & Platform Engineering HubHugo -- gohugo.ioen© 2026 Rachmat HidayatSun, 09 Aug 2026 19:30:00 +0000Crossplane Ep 14: Custom Composition Webhookshttps://rhidayat.work/series/crossplane/advanced/14-custom-composition-webhooks/Sun, 09 Aug 2026 19:30:00 +0000https://rhidayat.work/series/crossplane/advanced/14-custom-composition-webhooks/OpenAPI schema validation (like <code>type: integer</code>) is too basic for enterprise security. What if you need to enforce that a database&rsquo;s storage size is an even number, or that the requested environment matches a specific regex? In this episode, we write a Kubernetes Validating Webhook in Go to intercept and inspect Crossplane Claims.