[QA] salt is replaced by cumin

[Alex Monk]

It feels a bit slower than Salt.

Hashar: Thanks for picking up the work to get this running in deployment-prep.

We should probably document the per-project cumin masters on that page.

On 28 September 2017 at 19:55, Antoine Musso <hashar+wmf at free.fr> wrote:
> Hello,
>
> On deployment-prep and integration, I have removed Salt entirely in
> favor of Cumin.
>
> It is mostly similar but way better to keep the inventory, make sure you
> reach all the instances.  Cumin comes with an elaborate query scheme.
>
> One requires sudo access to be able to use it since commands are
> executed on instances as the root user.
>
> Instances:
>
> - deployment-cumin.deployment-prep.eqiad.wmflabs
> - integration-cumin.integration.eqiad.wmflabs
>
> Examples:
>
>  sudo cumin '*' 'true'
>  sudo cumin 'name:deployment-mediawiki' 'true'
>
> The documentation is quite nice, you certainly want to read the part
> about selecting hosts:
>
> https://wikitech.wikimedia.org/wiki/Cumin
>
>
> --
> Antoine "hashar" Musso
>
>
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