I'm attempting to integrate Logstash between Beats and Elasticsearch in Kubernetes. I'm utilizing the official Helm Chart available at artifacthub. I followed the guide provided by Elastic at secure-logstash-connections Currently, I'm using a self-managed Elasticsearch cluster, and I'm encountering difficulty locating the ca.key file required to establish the SSL connection between Logstash and Elasticsearch. According to the guide, if the Elasticsearch cluster is self-managed, there's no need to create a new CA, and if I break it, it affects Kibana and co. I just can find the ca.crt in the config folder