You can manage and authenticate users with the built-in
file internal realm.
All the data about the users for the
file realm is stored in two files on each
node in the cluster:
users_roles. Both files are located in
CONFIG_DIR/ and are read on startup.
users_roles files are managed locally by the node and are
not managed globally by the cluster. This means that with a typical
multi-node cluster, the exact same changes need to be applied on each and every
node in the cluster.
A safer approach would be to apply the change on one of the nodes and have the files distributed or copied to all other nodes in the cluster (either manually or using a configuration management system such as Puppet or Chef).
file realm is added to the realm chain by default. You don’t need to
explicitly configure a
For more information about file realms, see File-based user authentication.
(Optional) Add a realm configuration of type
xpack.security.authc.realmsnamespace. At a minimum, you must set the realm
file. If you are configuring multiple realms, you should also explicitly set the
For example, the following snippet shows a
filerealm configuration that sets the
orderto zero so the realm is checked first:
xpack: security: authc: realms: file1: type: file order: 0
- Restart Elasticsearch.
Add user information to the
CONFIG_DIR/usersfile on each node in the cluster.
usersfile stores all the users and their passwords. Each line in the file represents a single user entry consisting of the username and hashed password.
rdeniro:$2a$10$BBJ/ILiyJ1eBTYoRKxkqbuDEdYECplvxnqQ47uiowE7yGqvCEgj9W alpacino:$2a$10$cNwHnElYiMYZ/T3K4PvzGeJ1KbpXZp2PfoQD.gfaVdImnHOwIuBKS jacknich:$2a$10$GYUNWyABV/Ols/.bcwxuBuuaQzV6WIauW6RdboojxcixBq3LtI3ni
X-Pack security uses
bcryptto hash the user passwords.
While it is possible to modify this files directly using any standard text editor, we strongly recommend using the users tool to apply the required changes.
As the administrator of the cluster, it is your responsibility to ensure the same users are defined on every node in the cluster. X-Pack security does not deliver any mechanism to guarantee this.
Add role information to the
CONFIG_DIR/users_rolesfile on each node in the cluster.
users_rolesfile stores the roles associated with the users. For example:
admin:rdeniro power_user:alpacino,jacknich user:jacknich
Each row maps a role to a comma-separated list of all the users that are associated with that role.
You can use the users tool to update this file. You must ensure that the same changes are made on every node in the cluster.
(Optional) Change how often the
users_rolesfiles are checked.
By default, X-Pack security checks these files for changes every 5 seconds. You can change this default behavior by changing the
resource.reload.interval.highsetting in the
elasticsearch.ymlfile (as this is a common setting in Elasticsearch, changing its value may effect other schedules in the system).