Configure privileges for cross-cluster replication

The cross-cluster replication user requires different cluster and index privileges on the remote cluster and local cluster. Use the following requests to create separate roles on the local and remote clusters, and then create a user with the required roles.

On the remote cluster that contains the leader index, the cross-cluster replication role requires the read_ccr cluster privilege, and monitor and read privileges on the leader index.

The following request creates a remote-replication role on the remote cluster:

resp = client.security.put_role(
    name="remote-replication",
    cluster=[
        "read_ccr"
    ],
    indices=[
        {
            "names": [
                "leader-index-name"
            ],
            "privileges": [
                "monitor",
                "read"
            ]
        }
    ],
)
print(resp)

const response = await client.security.putRole({
  name: "remote-replication",
  cluster: ["read_ccr"],
  indices: [
    {
      names: ["leader-index-name"],
      privileges: ["monitor", "read"],
    },
  ],
});
console.log(response);

POST /_security/role/remote-replication
{
  "cluster": [
    "read_ccr"
  ],
  "indices": [
    {
      "names": [
        "leader-index-name"
      ],
      "privileges": [
        "monitor",
        "read"
      ]
    }
  ]
}

On the local cluster that contains the follower index, the remote-replication role requires the manage_ccr cluster privilege, and monitor, read, write, and manage_follow_index privileges on the follower index.

The following request creates a remote-replication role on the local cluster:

resp = client.security.put_role(
    name="remote-replication",
    cluster=[
        "manage_ccr"
    ],
    indices=[
        {
            "names": [
                "follower-index-name"
            ],
            "privileges": [
                "monitor",
                "read",
                "write",
                "manage_follow_index"
            ]
        }
    ],
)
print(resp)

const response = await client.security.putRole({
  name: "remote-replication",
  cluster: ["manage_ccr"],
  indices: [
    {
      names: ["follower-index-name"],
      privileges: ["monitor", "read", "write", "manage_follow_index"],
    },
  ],
});
console.log(response);

POST /_security/role/remote-replication
{
  "cluster": [
    "manage_ccr"
  ],
  "indices": [
    {
      "names": [
        "follower-index-name"
      ],
      "privileges": [
        "monitor",
        "read",
        "write",
        "manage_follow_index"
      ]
    }
  ]
}

After creating the remote-replication role on each cluster, use the create or update users API to create a user on the local cluster cluster and assign the remote-replication role. For example, the following request assigns the remote-replication role to a user named cross-cluster-user:

resp = client.security.put_user(
    username="cross-cluster-user",
    password="l0ng-r4nd0m-p@ssw0rd",
    roles=[
        "remote-replication"
    ],
)
print(resp)

const response = await client.security.putUser({
  username: "cross-cluster-user",
  password: "l0ng-r4nd0m-p@ssw0rd",
  roles: ["remote-replication"],
});
console.log(response);

POST /_security/user/cross-cluster-user
{
  "password" : "l0ng-r4nd0m-p@ssw0rd",
  "roles" : [ "remote-replication" ]
}