I found file activiti-custom-context.xml in folder apache-tomcat-8.5.59\webapps\activiti-rest\WEB-INF\classes.
Removed comment and put LDAP configuration which works(Try from custom rest service which use activiti 6 and have activiti.cfg.xml file where put ldap configuration and identity service return users from company LDAP).
<property name="configurators">
<list>
<bean class="org.activiti.ldap.LDAPConfigurator">
...
When I ran apache-tomcat-8.5.59 I got exception class not found Ldap.... i use activiti-ldap-6.0.0.jar and put in folder: apache-tomcat-8.5.59\webapps\activiti-rest\WEB-INF\lib
I again started tomcat and didn't get error, looked successfully started, but in activiti-app I didn't found any users or groups. Can someone help me?