# Kubernetes Operators Fails with Webhook

**URL:** <https://discuss.elastic.co/t/kubernetes-operators-fails-with-webhook/185561>\
**Category:** Elasticsearch\
**Created:** [June 13, 2019, 7:11am UTC](https://discuss.elastic.co/t/kubernetes-operators-fails-with-webhook/185561 "2019-06-13T07:11:12Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![kkensy](https://avatars.discourse-cdn.com/v4/letter/k/edb3f5/32.png) [@kkensy](https://discuss.elastic.co/u/kkensy)\
**Post date:** [July 12, 2019, 10:46am UTC](https://discuss.elastic.co/t/kubernetes-operators-fails-with-webhook/185561/5 "2019-07-12T10:46:28Z")

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Check this out:

> [@Air Gap System: Internal error occurred: failed calling webhook "validation.elasticsearch.elastic.co": Post https://elastic-webhook-service.elastic-system.svc:443/validate-elasticsearches?timeout=30s: Service Unavailable](https://discuss.elastic.co/t/air-gap-system-internal-error-occurred-failed-calling-webhook-validation-elasticsearch-elastic-co-post-https-elastic-webhook-service-elastic-system-svc-443-validate-elasticsearches-timeout-30s-service-unavailable/186396):
>
> Hi, I am following the quick start guide: [https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-quickstart.html](https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-quickstart.html) When I want to deploy the single node elasticsearch I get following error: Internal error occurred: failed calling webhook "validation.elasticsearch.elastic.co": Post https://elastic-webhook-service.elastic-system.svc:443/validate-elasticsearches?timeout=30s: Service Unavailable I assume that the problem is that my cluster is behind a proxy server. It can access a private docker…

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_[View the full topic](https://discuss.elastic.co/t/kubernetes-operators-fails-with-webhook/185561)._