[metrics-team] salt deployment completed and next steps

[Silvia [Hiro]]

Hi,

op-nl, op-us, op-hk are now managed through salt.
Irl please ping me when you are on irc and I can share access with you
on the master so you can configure op-ab too.

The next steps, besides sharing knowledge regarding our configuration on
the wiki, will involve configuring prometheus (https://prometheus.io)
for monitoring these hosts.

Talk soon.

-hiro