[Users] API read-only access / roles

Sun Feb 23 06:55:07 UTC 2014

----- Original Message -----
> From: "Juan Hernandez" <jhernand at redhat.com>
> To: "Sven Kieske" <S.Kieske at mittwald.de>, "Users at ovirt.org List" <Users at ovirt.org>
> Cc: "Itamar Heim" <iheim at redhat.com>, "Yair Zaslavsky" <yzaslavs at redhat.com>
> Sent: Saturday, February 22, 2014 2:22:14 PM
> Subject: Re: [Users] API read-only access / roles
> 
> On 02/20/2014 04:51 PM, Itamar Heim wrote:
> > On 02/20/2014 05:24 PM, Sven Kieske wrote:
> >> Hi,
> >>
> >> is nobody interested in this feature at all?
> >> it would be a huge security gain, while lowering
> >> the bars for having a read only user if this could get shipped with 3.4:
> > 
> > we are very interested, but we want to do this based on the
> > authentication re-factoring, which in itself, barely made the 3.4 timeline.
> > Yair - are we "pluggable" yet, that someone could add such a user by
> > dropping a jar somewhere, or still on going work towards 3.5?

As Juan mentioned in his email, it should be possible to plug in at 3.4 as well.
However, we're changing the configuration format at 3.5 as we're changing the mechanism to use the extensions mechanism - both Directory and Authenticator are extensions, the configuration for
directory (authorization extension) and authenciator (authentication extension) will look a bit different.

> > 
> 
> Pugglability of authentication already works in 3.4. By default it uses
> the previous mechanism, but the administrator can change this. In order
> to change you need to create the /etc/ovirt-engine/auth.conf.d directory
> and then create inside one or more "authentication profiles"
> configuration files. An authentication profile is a combination of an
> "authenticator" and a "directory". The authenticator is used to check
> the credentials (the user name and password) and the "directory" is used
> to search users and their details. For example, if you want to use local
> authentication (the users, passwords, and groups of the OS) you can
> create a "local.conf" file with the following content:
> 
>   #
>   # The name of the profile. This is what will be displayed in the
>   # combo box in the login page.
>   #
>   name=local
> 
>   #
>   # Needed to enable the profile, by default all profiles are
>   # disabled.
>   #
>   enabled=true
> 
>   #
>   # The configuration of the authenticator used by the profile. The
>   # type and the module are mandatory, the rest are optional and
>   # the default values are as shown below.
>   #
>   authenticator.type=ssh
>   authenticator.module=org.ovirt.engine.core.authentication.ssh
>   # authenticator.host=localhost
>   # authenticator.port=22
>   # authenticator.timeout=10
> 
>   #
>   # The configuration of the directory:
>   #
>   directory.type=nss
>   directory.module=org.ovirt.engine.core.authentication.nss
> 
> For this to work you need to install some additional modules, which
> aren't currently part of the engine. This is where plugabillity comes in
> place. This modules can be built externally. I created modules for SSH
> authentication and NSS (Name Service Switch) directory. The source is
> available here:
> 
> https://github.com/jhernand/ovirt-engine-ssh-authenticator
> https://github.com/jhernand/ovirt-engine-nss-directory
> 
> The NSS directory also needs JNA (Java Native Access):
> 
> https://github.com/jhernand/ovirt-engine-jna-module
> 
> Installing these extensions is very easy, just build from source and
> uncompress the generated .zip files to /usr/share/ovirt-engine/modules.
> In case you don't want to build from source you can use the RPMs that I
> created. The source for the .spec files is here:
> 
> https://github.com/jhernand/ovirt-engine-rpms
> 
> If you don't want to build form source you can use a yum repository that
> I created with binaries for Fedora 20 (should work in CentOS as well):
> 
> http://jhernand.fedorapeople.org/repo
> 
> So, to summarize:
> 
> # cat > /etc/yum.repos.d/my.repo <<.
> [my]
> name=my
> baseurl=http://jhernand.fedorapeople.org/repo
> enabled=1
> gpgcheck=0
> .
> 
> # yum -y install \
> ovirt-engine-ssh-authenticator \
> ovirt-engine-nss-directory
> 
> # mkdir -p /etc/ovirt-engine/auth.conf.d
> 
> # cat > /etc/ovirt-engine/auth.conf.d/local.conf <<.
> name=local
> enabled=true
> authenticator.type=ssh
> authenticator.module=org.ovirt.engine.core.authentication.ssh
> directory.type=nss
> directory.module=org.ovirt.engine.core.authentication.nss
> .
> 
> # systemctl restart ovirt-engine
> 
> Then you can login with admin at internal, add some local users and
> permissions, and then use them to login to the GUI or the API.
> 
> Take into account that I created these modules as a way to test the new
> authentication infrastructure, so they may have limitations or issues. I
> appreciate any feedback.
> 
> >>
> >> Am 19.02.2014 15:32, schrieb Sven Kieske:> I just looked into my test vm
> >> with the 3.4 beta
> >>> and I can't see such an user there.
> >>>
> >>> I created an RFE at: https://bugzilla.redhat.com/show_bug.cgi?id=1067036
> >>>
> >>>
> >>> I really hope this can get included in 3.4 (I know it's late)
> >>> as it should be a very very minor change at engine-setup.
> >>>
> >>> Thanks
> >>>
> >>> Am 19.02.2014 14:55, schrieb Sven Kieske:
> >>>> Hi,
> >>>>
> >>>> reiterating on this somewhat old mail:
> >>>>
> >>>> Is there a read only user integrated in 3.4?
> >>>>
> >>>> Because it's a huge overhead to install somewhere
> >>>> e.g. a freeipa server just to get read only access.
> >>>>
> >>>> Am 21.11.2013 09:52, schrieb Sander Grendelman:
> >>>>> Hi Doron,
> >>>>>
> >>>>> The user I've defined in [1] works for me.
> >>>>> A built-in login-/read-only role would be nice,
> >>>>> but it's quite easy to define a custom role so
> >>>>> more of a nice-to-have instead of a must-have.
> >>>>>
> >>>>> Thanks for asking!
> >>>>>
> >>>>> Sander.
> >>>>>
> >>>>> On Wed, Nov 20, 2013 at 5:40 PM, Doron Fediuck <dfediuck at redhat.com>
> >> wrote:
> >>>>>> Hi Sander,
> >>>>>> We're closing the ovirt 3.4 scope, and wondering if you're handling
> >>>>>> Zabbix based on [1].
> >>>>>> If so please let me know and I'll update the 3.4 features list.
> >>>>>>
> >>>>>> Thanks,
> >>>>>> Doron
> >>>>>>
> >>>>>> [1] http://lists.ovirt.org/pipermail/users/2013-November/017946.html
> >>>>
> >>>
> > 
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> > 
> 
> 
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