Hi Michael, There is code in kafka codebase that reads and interprets the topic config JSON which has acls, owner and logconfig properties. There are 3 use cases that we are supporting with current proposal:
* You use out of box simpleAcl authorizer which is tied to the acl stored in topic config and the format is locked down. * You have a custom authorizer and a custom ACL store. Ranger/Argus falls under this as they have their own acl store and ui that users use to configure acls on the cluster and cluster resources like topic. It is upto the custom authorizer to leverage the kafka acl configs or completely ignore them as they have set a user expectation that only acls configured via their ui/system will be effective. * You have a custom authorizer but no custom Acl store. You are completely tied to Acl structure that we have provided in out of box implementation. Thanks Parth On 4/15/15, 10:31 AM, "Michael Herstine" <mherst...@linkedin.com.INVALID<mailto:mherst...@linkedin.com.INVALID>> wrote: Hi Parth, One question that occurred to me at the end of today’s hangout: how tied are we to a particular ACL representation under your proposal? I know that TopicConfigCache will just contain JSON— if a particular site decides they want to represent their ACLs differently, and swap out the authorizer implementation, will that work? I guess what I’m asking is whether there’s any code in the Kafka codebase that will interpret that JSON, or does that logic live exclusively in the authorizer? On 4/14/15, 10:56 PM, "Don Bosco Durai" <bo...@apache.org<mailto:bo...@apache.org>> wrote: I also feel, having just IP would be more appropriate. Host lookup will unnecessary slow things down and would be insecure as you pointed out. With IP, it will be also able to setup policies (in future if needed) with ranges or netmasks and it would be more scalable. Bosco On 4/14/15, 1:40 PM, "Michael Herstine" <mherst...@linkedin.com.INVALID<mailto:mherst...@linkedin.com.INVALID>> wrote: Hi Parth, Sorry to chime in so late, but I’ve got a minor question on the KIP. Several methods take a parameter named “host” of type String. Is that intended to be a hostname, or an IP address? If the former, I’m curious as to how that’s found (in my experience, when accepting an incoming socket connection, you only know the IP address, and there isn’t a way to map that to a hostname without a round trip to a DNS server, which is insecure anyway). On 3/25/15, 1:07 PM, "Parth Brahmbhatt" <pbrahmbh...@hortonworks.com<mailto:pbrahmbh...@hortonworks.com>> wrote: Hi all, I have modified the KIP to reflect the recent change request from the reviewers. I have been working on the code and I have the server side code for authorization ready. I am now modifying the command line utilities. I would really appreciate if some of the committers can spend sometime to review the KIP so we can make progress on this. Thanks Parth On 3/18/15, 2:20 PM, "Michael Herstine" <mherst...@linkedin.com.INVALID<mailto:mherst...@linkedin.com.INVALID>> wrote: Hi Parth, Thanks! A few questions: 1. Do you want to permit rules in your ACLs that DENY access as well as ALLOW? This can be handy setting up rules that have exceptions. E.g. “Allow principal P to READ resource R from all hosts” with “Deny principal P READ access to resource R from host H1” in combination would allow P to READ R from all hosts *except* H1. 2. When a topic is newly created, will there be an ACL created for it? If not, would that not deny subsequent access to it? (nit) Maybe use Principal instead of String to represent principals? On 3/9/15, 11:48 AM, "Don Bosco Durai" <bo...@apache.org<mailto:bo...@apache.org>> wrote: Parth Overall it is looking good. Couple of questionsŠ - Can you give an example how the policies will look like in the default implementation? - In the operations, can we support ³CONNECT² also? This can be used during Session connection - Regarding access control for ³Topic Creation², since we can¹t do it on the server side, can we de-scope it for? And plan it as a future feature request? Thanks Bosco On 3/6/15, 8:10 AM, "Harsha" <ka...@harsha.io<mailto:ka...@harsha.io>> wrote: Hi Parth, Thanks for putting this together. Overall it looks good to me. Although AdminUtils is a concern KIP-4 can probably fix that part. Thanks, Harsha On Thu, Mar 5, 2015, at 10:39 AM, Parth Brahmbhatt wrote: Forgot to add links to wiki and jira. Link to wiki: https://cwiki.apache.org/confluence/display/KAFKA/KIP-11+-+Authoriza t i o n + Interface Link to Jira: https://issues.apache.org/jira/browse/KAFKA-1688 Thanks Parth From: Parth Brahmbhatt <pbrahmbh...@hortonworks.com<mailto:pbrahmbh...@hortonworks.com><mailto:pbrahmbh...@hortonworks.com>> Date: Thursday, March 5, 2015 at 10:33 AM To: "dev@kafka.apache.org<mailto:dev@kafka.apache.org><mailto:dev@kafka.apache.org>" <dev@kafka.apache.org<mailto:dev@kafka.apache.org><mailto:dev@kafka.apache.org>> Subject: [DISCUSS] KIP-11- Authorization design for kafka security Hi, KIP-11 is open for discussion , I have updated the wiki with the design and open questions. Thanks Parth
