Re: Dashboard runs on all manager instances?

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On Tue, Jan 9, 2018 at 6:34 PM, Tim Bishop <tim-lists@xxxxxxxxxxx> wrote:
> Hi,
>
> I've recently upgraded from Jewel to Luminous and I'm therefore new to
> using the Dashboard. I noted this section in the documentation:
>
> http://docs.ceph.com/docs/master/mgr/dashboard/#load-balancer
>
>         "Please note that the dashboard will only start on the
>         manager which is active at that moment. Query the Ceph
>         cluster status to see which manager is active (e.g., ceph
>         mgr dump). In order to make the dashboard available via a
>         consistent URL regardless of which manager daemon is currently
>         active, you may want to set up a load balancer front-end
>         to direct traffic to whichever manager endpoint is available.
>         If you use a reverse http proxy that forwards a subpath to
>         the dashboard, you need to configure url_prefix (see above)."
>
> However, from what I can see the dashboard is actually started on all
> manager instances. On the standby instances it simply has a redirect to
> the active instance. So the above documentation would look to be
> incorrect?

Oops, missed that bit of the documentation when adding the standby
functionality.  Will fix that.

John

>
> I was planning to use Apache's mod_proxy_balancer to just pick the
> active instance, but the above makes that tricky. How have others solved
> this? Or do you just pick the right instance and go direct? Or maybe I'm
> missing a config option to make the dashboard only run on the active
> manager?
>
> Thanks,
> Tim.
>
> --
> Tim Bishop
> PGP Key: 0x6C226B37FDF38D55
>
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