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From mxm <...@git.apache.org>
Subject [GitHub] flink pull request #2275: FLINK-3929 Support for Kerberos Authentication wit...
Date Wed, 27 Jul 2016 12:18:33 GMT
Github user mxm commented on a diff in the pull request:

    --- Diff: docs/internals/flink_security.md ---
    @@ -0,0 +1,87 @@
    +title:  "Flink Security"
    +# Top navigation
    +top-nav-group: internals
    +top-nav-pos: 10
    +top-nav-title: Flink Security
    +Licensed to the Apache Software Foundation (ASF) under one
    +or more contributor license agreements.  See the NOTICE file
    +distributed with this work for additional information
    +regarding copyright ownership.  The ASF licenses this file
    +to you under the Apache License, Version 2.0 (the
    +"License"); you may not use this file except in compliance
    +with the License.  You may obtain a copy of the License at
    +  http://www.apache.org/licenses/LICENSE-2.0
    +Unless required by applicable law or agreed to in writing,
    +software distributed under the License is distributed on an
    +KIND, either express or implied.  See the License for the
    +specific language governing permissions and limitations
    +under the License.
    +This document briefly describes how Flink security works in the context of various deployment
mechanism (Standalone/Cluster vs YARN) 
    +and the connectors that participates in Flink Job execution stage. This documentation
can be helpful for both administrators and developers 
    +who plans to run Flink on a secure environment.
    +## Objective
    +The primary goal of Flink security model is to enable secure data access for jobs within
a cluster via connectors. In production deployment scenario, 
    +streaming jobs are understood to run for longer period of time (days/weeks/months) and
the system must be  able to authenticate against secure 
    +data sources throughout the life of the job. The current implementation supports running
Flink cluster (Job Manager/Task Manager/Jobs) under the 
    +context of a Kerberos identity based on Keytab credential supplied during deployment
time. Any jobs submitted will continue to run in the identity of the cluster.
    +## How Flink Security works
    +Flink deployment includes running Job Manager/ZooKeeper, Task Manager(s), Web UI and
Job(s). Jobs (user code) can be submitted through web UI and/or CLI. 
    +A Job program may use one or more connectors (Kafka, HDFS, Cassandra, Flume, Kinesis
etc.,) and each connector may have a specific security 
    +requirements (Kerberos, database based, SSL/TLS, custom etc.,). While satisfying the
security requirements for all the connectors evolve over a period 
    +of time but at this time of writing, the following connectors/services are tested for
Kerberos/Keytab based security.
    --- End diff --

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