Hello everyone,

I have been trying to deploy elasticsearch helm chart in my k8s cluster consisting of 4 nodes (1 k8s master, 1 controller and 2 computes) after deploying fluentbit and fluentd helm charts which are deployed with success. I have plan to make the EFK (Elasticsearch-Fluentd-Kibana) stack running in my k8s cluster setup for logs management.

However I face issues while deploying elasticsearch helm chart using the below command :

$ helm install elasticsearch local/elasticsearch --values values_overrides/local-storage.yaml  -n openstack

Error: unable to build kubernetes objects from release manifest: error validating "": error validating data: ValidationError(StatefulSet.spec): unknown field "strategy" in io.k8s.api.apps.v1.StatefulSetSpec

Can anyone point me if I missing anything? 

What are the prerequisites before deploying elasticsearch chart which intended to use local storage/pv in my case avoiding the default S3 storage as per the chart?

Thanks for your pointers and suggestions.

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best regards,

SanjayK