Greg Mann created MESOS-4902:
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             Summary: Add authentication to agent endpoints /files, /profiler, 
and /logging
                 Key: MESOS-4902
                 URL: https://issues.apache.org/jira/browse/MESOS-4902
             Project: Mesos
          Issue Type: Improvement
          Components: HTTP API
            Reporter: Greg Mann


Adding HTTP authentication to these endpoints is a bit more complicated than is 
the case for the existing authenticated endpoints. {{/profiler}} and 
{{/logging}} endpoints are defined at the libprocess level, while {{/files}} is 
defined in code that is shared by the master and agent.

While working on MESOS-4850, it became apparent that since our tests use the 
same instance of libprocess for both master and agent, different default 
authentication realms must be used for master/agent so that HTTP authentication 
can be independently enabled/disabled for each.

We should establish a mechanism for making an endpoint authenticated that 
allows us to:
1) Install an endpoint like {{/files}} with different authentication realms for 
the master and agent
2) Avoid hard-coding a default authentication realm into libprocess, again to 
permit the use of different authentication realms for the master and agent

Another option would be to use a single default authentication realm and always 
enable or disable HTTP authentication for *both* the master and agent in tests. 
However, this wouldn't allow us to test scenarios where HTTP authentication is 
enabled on one but disabled on the other.



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