# Elasticsearch cluster replace ca file

**URL:** <https://discuss.elastic.co/t/elasticsearch-cluster-replace-ca-file/246703>\
**Category:** Elasticsearch\
**Tags:** elastic-stack-security\
**Created:** [August 28, 2020, 2:45am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-replace-ca-file/246703 "2020-08-28T02:45:55Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![ZMMWMY](https://avatars.discourse-cdn.com/v4/letter/z/a587f6/32.png) [@ZMMWMY](https://discuss.elastic.co/u/ZMMWMY)\
**Post date:** [August 28, 2020, 2:45am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-replace-ca-file/246703/1 "2020-08-28T02:45:55Z")

</div>

How to replace CA files in cluster without downtime  
I referred to this [article Encrypting communications in an Elasticsearch Docker Containeredit](https://www.elastic.co/guide/en/elasticsearch/reference/current/configuring-tls-docker.html) when building a cluster

Now that I have a new node that wants to join the cluster, the CA file will change. What should I do now

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 25, 2020, 2:46am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-replace-ca-file/246703/2 "2020-09-25T02:46:15Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.