Re: Memcached Role in Fedora Server 23

[Stephen Gallagher]

On Fri, 2015-07-17 at 09:23 -0400, Stephen Gallagher wrote:
>  At this week's Fedora Server SIG meeting, I indicated that things
>
>  were
>  looking bleak for landing the containerized memcached role in F23. It
>  turns out things weren't as bad as I feared (with some caveats).
>  
>  I was able to find the time this week (mostly by turning off IRC) to
>  get the memcached role built. It's not the final version I was hoping
>  for (producing a nulecule app), but it *can* serve memcached using 
>  the
>  official Fedora Dockerfiles version of the service uploaded to the
>  Docker Hub.
>  
>  What do I need help with?
>   * I need someone to run through the open code review requests[1]. I
>  think things are in good shape, but I would prefer a second set of 
>  eyes
>  on them.
>  
>  
>  So, what can it do right now?
>   * You can deploy a memcached role entirely on the local machine, the
>  same way that you can deploy the database server role or the domain
>  controller role.
>   * You can deploy the role with no arguments (it has sensible
>  defaults).
>   * You can pass arguments to control the cache size, number of
>  connections and number of threads.
>   * You can pass a special boolean argument "contained". This will 
>  cause
>  the role to be deployed by pulling down the fedora/memcached image 
>  from
>  Docker Hub and creating a systemd unit file to load it at boot.
>  
>  Caveats:
>   * The containerized version is just that; memcached in a container. 
>  It
>  has no advanced orchestration capabilities.
>   * The version of the fedora/memcached image in the Docker Hub 
>  doesn't
>  have the capability to tune the same values as the local version. 
>  Right
>  now, these are ignored. I have a pull request[1] open to fix this.
>  
>  
>  
>  [1] https://reviewboard-fedoraserver.rhcloud.com/r/
>  [2] https://github.com/fedora-cloud/Fedora-Dockerfiles/pull/115 

I just built a COPR repo containing all of the patches currently up for
code review: 
https://copr.fedoraproject.org/coprs/sgallagh/rolekit-prototypes/

Please feel welcome (nee: encouraged) to install it on F22, F23 or
Rawhide and put it through its paces.