Don Bosco Durai created RANGER-698:
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             Summary: Ranger policy should support variables like $user
                 Key: RANGER-698
                 URL: https://issues.apache.org/jira/browse/RANGER-698
             Project: Ranger
          Issue Type: Improvement
            Reporter: Don Bosco Durai
             Fix For: 0.6.0


It would be good to support variables in resources and users.

E.g.

HDFS Resource =  /home/$user  
or
Table Resource = ${user}_*

Users allowed = $user

Where $user will be expanded to the current user. 

I think, resource substitution will be easy. For permission, we can use key 
word like we use for all users group="public". We can use key word like "USER" 
or something like that.




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