Support the resolution of remote index names, including those that contain wildcards in the cluster name or index part)
Specifically these work:
- `GET /remote*:foo/_search`
- `GET /*:foo/_search`
- `GET /*:foo,*/_search`
- `GET /remote:*/_search`
- `GET /*:*/_search`
This change assumes that every user is allowed to attempt a cross-cluster search against any remote index, and the actual authorisation of indices happens on the remote nodes. Thus ` GET /*:foo/_search` will expand to search the `foo` index on every registered remote without consideration of the roles and privileges that the user has on the source cluster.
Original commit: elastic/x-pack-elasticsearch@b45041aaa3
Cross cluster search uses ClusterSearchShardsAction under the covers.
Without this change, you would need both "read_cross_cluster" and "view_index_metadata" privilegs in order to have permission to execute searches from a remote cluster.
Original commit: elastic/x-pack-elasticsearch@65a6aff329
This change removes the roles from the user in the remote cluster to show that the roles passed
from the source cluster are used in evaluating the user's permissions during multi-cluster search.
Original commit: elastic/x-pack-elasticsearch@35658168fb
This commit removes the SecuredString class that was previously used throughout the security code
and replaces it with the SecureString class from core that was added as part of the new secure
settings infrastructure.
relates elastic/x-pack-elasticsearch#421
Original commit: elastic/x-pack-elasticsearch@e9cd117ca1
Simon Willnauer
Tim Vernum
Luca Cavanna
Jay Modi
Ryan Ernst