Add an ability to fetch user's membership from
groups of a different type by specifying multiple
group attribute to user attribute value matchers
in the Dex config:
userMatchers:
- userAttr: uid
groupAttr: memberUid
- userAttr: DN
groupAttr: member
In other words the user's groups can be fetched now from
ldap structure similar to the following:
dn: cn=john,ou=People,dc=example,dc=org
objectClass: person
objectClass: inetOrgPerson
sn: doe
cn: john
uid: johndoe
mail: johndoe@example.com
userpassword: bar
dn: cn=qa,ou=Groups,ou=Portland,dc=example,dc=org
objectClass: groupOfNames
cn: qa
member: cn=john,ou=People,dc=example,dc=org
dn: cn=logger,ou=UnixGroups,ou=Portland,dc=example,dc=org
objectClass: posixGroup
gidNumber: 1000
cn: logger
memberUid: johndoe
Signed-off-by: Vitaliy Dmitriev <vi7alya@gmail.com>