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Role mapping resources

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Role mapping resources

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A role mapping resource has the following properties:

enabled

(boolean) Mappings that have enabled set to false are ignored when role mapping is performed.

metadata

(object) Additional metadata that helps define which roles are assigned to each user. Within the metadata object, keys beginning with _ are reserved for system usage.

roles

(list) A list of roles that are granted to the users that match the role mapping rules.

rules

(object) The rules that determine which users should be matched by the mapping. A rule is a logical condition that is expressed by using a JSON DSL. The DSL supports the following rule types:

any: (array of rules) If any of its children are true, it evaluates to true.
all: (array of rules) If all of its children are true, it evaluates to true.
field: (object) See Field rules.

except

(object) A single rule as an object. Only valid as a child of an all rule. If its child is false, the except is true.

Field rules

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The field rule is the primary building block for a role mapping expression. It takes a single object as its value and that object must contain a single member with key F and value V. The field rule looks up the value of F within the user object and then tests whether the user value matches the provided value V.

The value specified in the field rule can be one of the following types:

Type	Description	Example
Simple String	Exactly matches the provided value.	`"esadmin"`
Wildcard String	Matches the provided value using a wildcard.	`"*,dc=example,dc=com"`
Regular Expression	Matches the provided value using a Lucene regexp.	`"/.-admin[0-9]/"`
Number	Matches an equivalent numerical value.	`7`
Null	Matches a null or missing value.	`null`
Array	Tests each element in the array in accordance with the above definitions. If any of elements match, the match is successful.	`["admin", "operator"]`

User fields

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The user object against which rules are evaluated has the following fields:

username: (string) The username by which the Elasticsearch security features knows this user. For example, "username": "jsmith".
dn: (string) The Distinguished Name of the user. For example, "dn": "cn=jsmith,ou=users,dc=example,dc=com",.
groups: (array of strings) The groups to which the user belongs. For example, "groups" : [ "cn=admin,ou=groups,dc=example,dc=com","cn=esusers,ou=groups,dc=example,dc=com ].
metadata: (object) Additional metadata for the user. For example, "metadata": { "cn": "John Smith" }.
realm: (object) The realm that authenticated the user. The only field in this object is the realm name. For example, "realm": { "name": "ldap1" }.

The groups field is multi-valued; a user can belong to many groups. When a field rule is applied against a multi-valued field, it is considered to match if at least one of the member values matches. For example, the following rule matches any user who is a member of the admin group, regardless of any other groups they belong to:

{ "field" : { "groups" : "admin" } }

For additional realm-specific details, see Mapping Users and Groups to Roles.

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