[Engineering] SWAT deploy slot time changes (and adding European mid-day slot)

[Greg Grossmeier]

Reminder: This change begins this coming Monday, Aug 22nd.

If you would normally use the 9am Pacific ("morning SWAT") you'll either
go 3 hours earlier (6am Pacific/13:00 UTC, "European Mid-day SWAT") or 2
hours later (11am Pacific/18:00 UTC).


<quote name="Greg Grossmeier" date="2016-08-09" time="11:00:05 -0700">
> tl;dr: Starting the week of August 22nd there will be 3 SWAT deploy
> windows: at 13:00, 18:00, and 23:00 UTC (6am, 11am, 4pm PDT).
> 
> Hello all,
> 
> I'm pleased to announce that after being heavily SF-focused for a long
> time we're adding a Europe-focused (and slightly better for Asia/India)
> SWAT window[0] starting on August 22nd[1].
> 
> This new SWAT window follows a couple changes to the SWAT process[2] and
> scap tooling[3] which make SWAT deploys less risky and stressful for all
> involved.
> 
> We hope this additional window will make the lives of all teams and
> volunteers (at least slightly) better.
> 
> <3,
> Greg and the Release Engineering Team
> 
> [0] https://wikitech.wikimedia.org/wiki/SWAT_deploys
> [1] https://wikitech.wikimedia.org/wiki/Deployments#Week_of_August_22nd
> [2] Utilizing mw1099/X-Wikimedia-Debug headers, see:
>     https://wikitech.wikimedia.org/wiki/SWAT_deploys#Doing_the_deploy
> [3] Canary error rate checks built-in, see:
>     https://lists.wikimedia.org/pipermail/wikitech-l/2016-August/086255.html
> 
> -- 
> | Greg Grossmeier            GPG: B2FA 27B1 F7EB D327 6B8E |
> | identi.ca: @greg                A18D 1138 8E47 FAC8 1C7D |



-- 
| Greg Grossmeier            GPG: B2FA 27B1 F7EB D327 6B8E |
| Release Team Manager            A18D 1138 8E47 FAC8 1C7D |
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