VictoriaMetrics/docs/operator/resources-validation.md
Artem Navoiev 8d238f1bc2
docs: prepare operator docs to migration
Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
2023-01-11 16:59:52 -08:00

45 lines
1.3 KiB
Markdown

---
sort: 11
weight: 11
title: CRD Validation
menu:
docs:
parent: "operator"
weight: 11
aliases:
- /operator/resources-validation.html
---
# CRD Validation
## Description
Operator supports validation admission webhook [docs](https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/)
It checks resources configuration and returns errors to caller before resource will be created at kubernetes api.
This should reduce errors and simplify debugging.
## Configuration
Validation hooks at operator side must be enabled with flags:
```
--webhook.enable
# optional configuration for certDir and tls names.
--webhook.certDir=/tmp/k8s-webhook-server/serving-certs/
--webhook.keyName=tls.key
--webhook.certName=tls.crt
```
You have to mount correct certificates at give directory.
It can be simplified with cert-manager and kustomize command: `kustomize build config/deployments/webhook/ `
## Requirements
- Valid certificate with key must be provided to operator
- Valid CABundle must be added to the `ValidatingWebhookConfiguration`
## Useful links
- [k8s admission webhooks](https://banzaicloud.com/blog/k8s-admission-webhooks/)
- [olm webhooks](https://docs.openshift.com/container-platform/4.5/operators/user/olm-webhooks.html)