Your description is exactly how I would expect things to work. However, the
user is not able to access the graph.

The nifi-user.log indicates:

o.a.n.w.s.NiFiAuthenticationFilter Attempting request for (<UserX>) GET
https://<nifi-url>/nifi-api/flow/current-user
o.a.n.w.s.NiFiAuthenticationFilter Authentication success for <UserX>
o.a.n.w.a.c.AccessDeniedExceptionMapper <UserX> does not have permission to
access the requested resource. Returning Forbidden response.



On Fri, Feb 24, 2017 at 12:46 PM, Matt Gilman <[email protected]>
wrote:

> Mark,
>
> Adding the user and then granting that user permissions to 'view the user
> interface' is all that is required for the user to access the UI. If you
> check out the nifi-user.log you should be able to see which request failed.
> In the coming 1.2.0 release, we've made the authorization error messages
> more meaningful which should make it easier to see which policies the user
> is lacking.
>
> Subsequently, the user can be granted to various parts of data flow
> (through the policies access from the canvas Operate palette). This will
> allow the user to see the types/configuration of various components and/or
> modify them. Without these permissions, the user can still see the data
> flow but they will not be able to see details of those components.
>
> Matt
>
> On Fri, Feb 24, 2017 at 12:32 PM, Mark Bean <[email protected]> wrote:
>
> > I am attempting to apply Access Policies appropriately. As a very first
> > step, I want to grant a user access to the UI. From the global menu, I
> > chose Users and added the user. Then, again from the global menu, I chose
> > Policies. I added the user to "view the user interface" and "access the
> > controller" ("view" only; not "modify").
> >
> > When this failed to give the user access, I went to the component level
> > policy at the root of the graph (i.e. "NiFi Flow" process group). I
> granted
> > "view the component".
> >
> > With the above policies, the user receives a message that states "Unable
> to
> > perform the desired action due to insufficient permissions. Contact the
> > system administrator."
> >
> > How do I grant a user access to the UI?
> >
> > The Admin Guide has a section on Access Policy Configuration Examples.
> > However, it begins with "The following scenarios assume User1 is an
> > administrator and User2 is a newly added user that has only been given
> > access to the UI." Suggestion: create a new example scenario which
> > demonstrates "has been given access to the UI".
> >
> > Thanks,
> > Mark
> >
>

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