200 lines
6.8 KiB
Plaintext
200 lines
6.8 KiB
Plaintext
[[native-realm]]
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=== Native User Authentication
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The easiest way to manage and authenticate users is with the internal `native`
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realm. You can use the REST APIs or Kibana to add and remove users, assign user roles, and
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manage user passwords.
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[[native-realm-configuration]]
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[float]
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==== Configuring a Native Realm
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The native realm is added to the realm chain by default. You don't need to
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explicitly configure a native realm to manage users through the REST APIs.
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IMPORTANT: When you configure realms in `elasticsearch.yml`, only the
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realms you specify are used for authentication. To use the
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`native` realm as a fallback, you must include it in the realm chain.
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You can, however, configure options for the `native` realm in the
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`xpack.security.authc.realms` namespace in `elasticsearch.yml`. Explicitly
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configuring a native realm enables you to set the order in which it appears in
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the realm chain, temporary disable the realm, and control its cache options.
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To configure a native realm:
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. Add a realm configuration of type `native` to `elasticsearch.yml` under the
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`xpack.security.authc.realms` namespace. At a minimum, you must set the realm
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`type` to `native`. If you are configuring multiple realms, you should also
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explicitly set the `order` attribute. See <<native-settings, Native Realm Settings>>
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for all of the options you can set for the `native` realm.
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+
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For example, the following snippet shows a `native` realm configuration that
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sets the `order` to zero so the realm is checked first:
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+
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[source, yaml]
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------------------------------------------------------------
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xpack:
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security:
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authc:
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realms:
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native1:
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type: native
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order: 0
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------------------------------------------------------------
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. Restart Elasticsearch.
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[[native-settings]]
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.Native Realm Settings
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[cols="4,^3,10"]
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|=======================
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| Setting | Required | Description
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| `type` | yes | Indicates the realm type. Must be set to `native`.
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| `order` | no | Indicates the priority of this realm within
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the realm chain. Realms with a lower order
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are consulted first. Although not required,
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we recommend explicitly setting this value
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when you configure multiple realms. Defaults
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to `Integer.MAX_VALUE`.
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| `enabled` | no | Indicates whether this realm is enabled or
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disabled. When set to `false`, the realm is
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not added to the realm chain and therefore
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is inactive. Defaults to `true`.
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| `cache.ttl` | no | Specifies the time-to-live for cached user
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entries. A user's credentials are cached for
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this period of time. Specify the time period
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using the standard Elasticsearch
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{ref}/common-options.html#time-units[time units].
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Defaults to `20m`.
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| `cache.max_users` | no | Specifies the maximum number of user entries
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that can be cached at any given time. Defaults
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to 100,000.
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| `cache.hash_algo` | no | Specifies the hashing algorithm that is used
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for the cached user credentials. See
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<<cache-hash-algo, Cache hash algorithms>>
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for the possible values. (Expert Setting)
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|=======================
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[[managing-native-users]]
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==== Managing Native Users
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You manage users in the `native` realm through the
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{ref}/security-api-users.html[user API].
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[[migrating-from-file]]
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NOTE: To migrate file-based users to the `native` realm, use the
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{ref}/migrate-tool.html[migrate tool].
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[float]
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[[native-add]]
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===== Adding Users
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To add a user, submit a PUT or POST request to the `/_xpack/security/user/<username>`
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endpoint.
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Usernames must be at least 1 and no more than 1024 characters. They can
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contain alphanumeric characters (`a-z`, `A-Z`, `0-9`), spaces, punctuation, and
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printable symbols in the https://en.wikipedia.org/wiki/Basic_Latin_(Unicode_block)[Basic Latin (ASCII) block].
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Leading or trailing whitespace is not allowed.
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[source,js]
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--------------------------------------------------
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POST /_xpack/security/user/jacknich
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{
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"password" : "j@rV1s", <1>
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"roles" : [ "admin", "other_role1" ], <2>
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"full_name" : "Jack Nicholson", <3>
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"email" : "jacknich@example.com", <4>
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"metadata" : { <5>
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"intelligence" : 7
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},
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"enabled": true <6>
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}
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--------------------------------------------------
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// CONSOLE
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<1> You must specify a password when adding a user. Passwords must be at least 6
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characters long.
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<2> You must assign at least one role to the user. The roles determine the user's
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access permissions.
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<3> The user's full name. Optional.
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<4> The user's email address. Optional.
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<5> Arbitrary metadata you want to associate with the user. Optional.
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<6> Specifies whether the user should be enabled. Optional with a default of true.
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[float]
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[[native-list]]
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===== Retrieving Users
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To retrieve all users, submit a GET request to the `/_xpack/security/user` endpoint:
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[source,js]
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--------------------------------------------------
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GET /_xpack/security/user
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--------------------------------------------------
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// CONSOLE
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// TEST[continued]
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To retrieve particular users, specify the users as a comma-separated list:
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[source,js]
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--------------------------------------------------
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GET /_xpack/security/user/jacknich,rdeniro
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--------------------------------------------------
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// CONSOLE
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// TEST[continued]
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An object is returned holding the found users, each keyed by the relevant
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username. Note that user passwords are not included.
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[source,js]
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--------------------------------------------------
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{
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"jacknich" : {
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"username": "jacknich",
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"roles" : [ "admin", "other_role1" ],
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"full_name" : "Jack Nicholson",
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"email" : "jacknich@example.com",
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"enabled" : true,
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"metadata" : {
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"intelligence" : 7
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}
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}
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}
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--------------------------------------------------
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// TESTRESPONSE
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[float]
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[[native-delete]]
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===== Deleting Users
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To delete a user, submit a DELETE request to the `/_xpack/security/user/<username>`
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endpoint:
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[source,js]
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--------------------------------------------------
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DELETE /_xpack/security/user/jacknich
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--------------------------------------------------
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// CONSOLE
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// TEST[continued]
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If the user is successfully deleted, the request returns `{"found": true}`.
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Otherwise, `found` is set to false.
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[source,js]
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--------------------------------------------------
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{
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"found" : true
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}
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--------------------------------------------------
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// TESTRESPONSE
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