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---
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layout: docs
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page_title: Certificate Rotation
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sidebar_title: Certificate Rotation
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description: Rotate Certificate on Kubernetes Cluster safely
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---
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# Rotating Server Certificates
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As of Consul Helm version `0.29.0`, if TLS is enabled, new TLS certificates for the Consul Server
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are issued every time the Helm chart is upgraded. These certificates are signed by the same CA and will
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continue to work as expected in the existing cluster.
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Consul servers read the certificates from Kubernetes secrets during start-up and keep them in memory. In order to ensure the
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2021-02-04 17:44:04 +00:00
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servers use the newer certificate, the server pods need to be [restarted explicitly](/docs/k8s/upgrade#upgrading-consul-servers) in
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a situation where `helm upgrade` does not restart the server pods.
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To explicitly perform server certificate rotation, follow these steps:
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1. Perform a `helm upgrade`:
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```shell-session
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helm upgrade consul hashicorp/consul -f /path/to/my/values.yaml
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```
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This should run the `tls-init` job that will generate new Server certificates.
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2021-02-04 17:13:32 +00:00
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1. Restart the Server pods following the steps [here](/docs/k8s/upgrade#upgrading-consul-servers).
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