Missing required Elasticsearch permissions documentation

[petergvizd-s1]

Describe the feature:
Currently I was not able to find permissions, that Janusgraph require to be able to successfully work with Elasticsearch. Would it be possible to add this section to documentation?

Describe a specific use case for the feature:
I think it would be beneficial for all users of Janusgraph to grant at least privilege to Elasticsearch user.

[michielboekhoff]

Not sure if this is applicable to your use-case, but I found that deploying The Hive (which uses Janusgraph) with this ES role worked:

hive_elastic_role:
  cluster: [ "manage" ]
  indices:
  - names: [ "thehive*" ]
    privileges: [ "all" ]