Manila/design/access groups
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Contents
Today we use "manila allow-access" and "manila deny-access" cli to allow and ip address/user the access to a particular share. In case we want a share to be accessible to a subnet OR a set of ip addresses together OR a set users together we have to allow each ip address separately one by one!! If we want to allow a same set of 'n' ip addresses, for each of 'n' shares, then n number of ip addresses will require n iterations for each share that's n^2 operations from user side.
That's cumbersome hence access-groups were proposed.
Requirement
Requirement is to have a mechanism so that a set of ip addresses can be considered as one entity, can be allowed the access to a share together. Henceforth, the same set can be allowed access to any other share in one single request from user. There comes the idea of manila access-groups.
Manila Access groups
A new object named "access_groups" will be created by user. Each "access_group" represents a bunch of "access_rules" of same "access_type & access_level". Bunch of access rules can be either a "set of ip addresses or can be set of users", to be allowed or denied in a go.
Access Group contains a set of "homogeneous access_entries". Each "access_entry" holds either one "ip-address" or one "user-name" at a time. Feature requirement is to provide a mechanism, to allow the access to a share for "a group of ip addresses/users", in one go, instead of allowing each ip-address/user one at a time.
Challenges
A set of rules applied in a bunch using access-groups. Earlier "allow-access/deny-access" api works on individual access rules. So it can interfere and allow/deny any access without any knowledge of access-group. That has to be taken care of.
A parallel interface to serve same purpose but in different granularity, causes redundancy in database and information.
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