Styjun

I am trying to give anonymous user admin level privilege to write to certain indices on Opendistro bundle of Elasticsearch. I have updated the config.yml with http.anonymous_auth_enabled: true and also made required changes to role.yml for anonymous_backendrole role.

But I am still getting this error -

 "error" : "root_cause" : [ "type" : "security_exception", "reason" : "no permissions for [cluster:monitor/health] and User [name=opendistro_security_anonymous, roles=[opendistro_security_anonymous_backendrole], requestedTenant=null]" ], "type" : "security_exception", "reason" : "no permissions for [cluster:monitor/health] and User [name=opendistro_security_anonymous, roles=[opendistro_security_anonymous_backendrole], requestedTenant=null]" , "status" : 403 

Looking for here if anyone could provide correct way to setup the anonymous auth with Opendistro.

Backend roles is really just a confusing name for "roles imported from an external server." In this case, you can ignore them.

Instead, you want a "regular" role, which you can create in Kibana > Security > Roles (or using the REST API). Just make sure it has the same cluster and index permissions as the existing admin role. I named mine anonymous-admin and gave it UNLIMITED for cluster permissions and * for indices.

Then go to Security > Role Mappings > Add a new role mapping. Choose your anonymous-admin role, add the string opendistro_security_anonymous to the Users field, and hit Submit.

Before:

$ curl -XGET https://localhost:9200 -k
"error":"root_cause":["type":"security_exception","reason":"no permissions for [cluster:monitor/main] and User [name=opendistro_security_anonymous, roles=[opendistro_security_anonymous_backendrole], requestedTenant=null]"],"type":"security_exception","reason":"no permissions for [cluster:monitor/main] and User [name=opendistro_security_anonymous, roles=[opendistro_security_anonymous_backendrole], requestedTenant=null]","status":403

After:

$ curl -XGET https://localhost:9200 -k

 "name" : "W8ehfvx",
 "cluster_name" : "odfe-cluster",
 "cluster_uuid" : "Uk67h4MkSL-U_48NJwjeRg",
 "version" : 
 "number" : "6.5.4",
 "build_flavor" : "oss",
 "build_type" : "tar",
 "build_hash" : "d2ef93d",
 "build_date" : "2018-12-17T21:17:40.758843Z",
 "build_snapshot" : false,
 "lucene_version" : "7.5.0",
 "minimum_wire_compatibility_version" : "5.6.0",
 "minimum_index_compatibility_version" : "5.0.0"
 ,
 "tagline" : "You Know, for Search"