[openstack-dev] [Keystone][Fernet] HA SQL backend for Fernet keys

Lance Bragstad lbragstad at gmail.com
Tue Aug 4 14:56:12 UTC 2015


On Tue, Aug 4, 2015 at 9:28 AM, Boris Bobrov <bbobrov at mirantis.com> wrote:

> On Tuesday 04 August 2015 08:06:21 Lance Bragstad wrote:
> > On Tue, Aug 4, 2015 at 1:37 AM, Boris Bobrov <bbobrov at mirantis.com>
> wrote:
> > > On Monday 03 August 2015 21:05:00 David Stanek wrote:
> > > > On Sat, Aug 1, 2015 at 8:03 PM, Boris Bobrov <bbobrov at mirantis.com>
> > >
> > > wrote:
> > > > > Also, come on, does http://paste.openstack.org/show/406674/ look
> > > > > overly
> > > > > complex? (it should be launched from Fuel master node).
> > > >
> > > > I'm reading this on a small phone, so I may have it wrong, but the
> > > > script
> > > >
> > > > appears to be broken.
> > > >
> > > >
> > > >
> > > > It will ssh to node-1 and rotate. In the simplest case this takes key
> > > > 0
> > >
> > > and
> > >
> > > > moves it to the next highest key number. Then a new key 0 is
> > > > generated.
> > > >
> > > >
> > > >
> > > > Later there is a loop that will again ssh into node-1 and run the
> > >
> > > rotation
> > >
> > > > script. If there is a limit set on the number of keys and you are at
> > > > that
> > > >
> > > > limit a key will be deleted. This extra rotation on node-1 means that
> > >
> > > it's
> > >
> > > > possible that it has a different set of keys than are on node-2 and
> > >
> > > node-3.
> > >
> > >
> > >
> > > You are absolutely right. Node-1 should be excluded from the loop.
> > >
> > >
> > >
> > > pinc also lacks "-c 1".
> > >
> > >
> > >
> > > I am sure that other issues can be found.
> > >
> > >
> > >
> > > In my excuse I want to say that I never ran the script and wrote it
> just
> > > to show how simple it should be. Thank for review though!
> > >
> > >
> > >
> > > I also hope that no one is going to use a script from a mailing list.
> > >
> > > > What's the issue with just a simple rsync of the directory?
> > >
> > > None I think. I just want to reuse the interface provided by
> > > keystone-manage.
> >
> > You wanted to use the interface from keystone-manage to handle the actual
> > promotion of the staged key, right? This is why there were two
> > fernet_rotate commands issued?
>
> Right. Here is the fixed version (please don't use it anyway):
> http://paste.openstack.org/show/406862/


Note, this doesn't take into account the initial key repository creation,
does it?

Here is a similar version that relies on rsync for the distribution after
the initial key rotation [0].

[0] http://cdn.pasteraw.com/d6odnvtt1u9zsw5mg4xetzgufy1mjua


>
>
> --
> Best regards,
> Boris Bobrov
>
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