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docs: health check use readiness probe in k8s

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Julien Acroute 2021-11-15 11:14:06 +01:00 • committed by GitHub
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docs/content/routing/services/index.md
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@ -336,11 +336,11 @@ Below are the available options for the health check mechanism:
Traefik keeps monitoring the health of unhealthy servers. Traefik keeps monitoring the health of unhealthy servers.
If a server has recovered (returning `2xx` -> `3xx` responses again), it will be added back to the load balancer rotation pool. If a server has recovered (returning `2xx` -> `3xx` responses again), it will be added back to the load balancer rotation pool.
!!! warning "Health check in Kubernetes" !!! warning "Health check with Kubernetes"
The Traefik health check is not available for `kubernetesCRD` and `kubernetesIngress` providers because Kubernetes Kubernetes has an health check mechanism to remove unhealthy pods from Kubernetes services (cf [readiness probe](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-readiness-probes)).
already has a health check mechanism. As unhealthy pods have no Kubernetes endpoints, Traefik will not forward traffic to them.
Unhealthy pods will be removed by kubernetes. (cf [liveness documentation](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-a-liveness-http-request)) Therefore, Traefik health check is not available for `kubernetesCRD` and `kubernetesIngress` providers.
??? example "Custom Interval & Timeout -- Using the [File Provider](../../providers/file.md)" ??? example "Custom Interval & Timeout -- Using the [File Provider](../../providers/file.md)"