This functionality is in alpha status and may be changed or removed completely in a future release. Elastic will take a best effort approach to fix any issues, but alpha features are not subject to the support SLA of official GA features.
Please look in the chart directories for the documentation for each chart. These helm charts are designed to be a lightweight way to configure our official docker images. Links to the relevant docker image documentation has also been added below.
The charts are currently tested against all GKE versions available.