Tuning ceph

[Peter Sabaini]

On 25.11.15 21:29, Pshem Kowalczyk wrote:
> Right,
> 
> How to you make sure that juju doesn't override my changes? If I had to
> add another mon node (and remove one of the existing ones) the new
> config would be overwritten by the default one.
> 
> I think the general issue is that I can't tell when particular config
> files will be re-generated.

Indeed, that only lends itself for configuration outside of the charms'
control. If however you're getting an overlap by a juju-managed config
file your only options are a) get the needed parameter included
upstream or b) fork the charm

cheers,
peter.



> 
> kind regards
> Pshem
>  
> 
> On Wed, 25 Nov 2015 at 21:58 Peter Sabaini <peter.sabaini at canonical.com
> <mailto:peter.sabaini at canonical.com>> wrote:
> 
>     On 24.11.15 23:25, Pshem Kowalczyk wrote:
>     > Hi,
>     >
>     > I'm relatively new to the juju ecosystem. I've built a test/POC
>     > openstack setup using juju charms. Ceph is used as the
>     backend-storage
>     > system for the deployment. Since the production deployment of this
>     > system has to meet some external requirements (particular CRUSH
>     > settings, recovery times etc) I'll have to tune ceph settings a bit.
>     >
>     > The charm itself doesn't seem to have a section to add that
>     information
>     > (some other charms do have that ability). What's the best way of
>     doing it?
>     >
>     > In general case, I've realised that sometimes it would be useful to
>     > have ability to run some actions after juju has finished its
>     > configuration to fine-tune it to particular requirements (without
>     > losing the advantages of using juju for all the dependencies). Is it
>     > possible to do something like that without building my own charms?
> 
>     We're generally just using "juju ssh", "juju run" and occasionally
>     "juju scp"
> 
>     Caveat: juju ssh doesn't really handle stdin
> 
>     cheers,
>     peter.
> 
>     > kind regards
>     > Pshem
>     >
>     >
>     >
> 
> 
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