[Buildbot] #3143: host package files required for buildslaves

[Buildbot trac]

#3143: host package files required for buildslaves
---------------------+-------------------------------
Reporter:  dustin    |      Owner:  dustin
    Type:  task      |     Status:  new
Priority:  critical  |  Milestone:  sys - on-bb-infra
 Version:            |   Keywords:
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 The !VirtualenvSetup step in the metabuildbot installs Python packages
 from a locally-hosted URL.  Doing so makes us immune to issues with pypi
 (which used to be much more common) and also allows us to build against
 old versions of packages which are no longer on pypi.

 We used to download these from http://buildbot.buildbot.net/static/pkgs
 but that URL no longer works.

 That data should, instead, be hosted at something like
 http://ftp.buildbot.net/metabuildbot/python-packages, and the URL in
 !VirtualenvSetup adjusted accordingly.

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Ticket URL: <http://trac.buildbot.net/ticket/3143>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation