Comment 2 for bug 1621056

Reviewed: https://review.openstack.org/362239
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=52aa94c173c0c8497ef889ac1587bc66e6abdca4
Submitter: Jenkins
Branch: master

commit 52aa94c173c0c8497ef889ac1587bc66e6abdca4
Author: dmburmistrov <email address hidden>
Date: Mon Aug 29 18:59:11 2016 +0300

    Use "safe" mirror list on upgrade

    All "safe" repos for using in upgrade will be configured in UI and
    available in Hiera. Then this list will be used to link this mirrors
    to separate "sources.d" directory. This directory will be used to point
    APT another source location. That allows us to get list of packages, which
    will be upgraded with specified in "sources.d" mirrors. Then, available
    packages will be upgraded.

    To keep this process configurable we can specify hash of packages, which
    should be upgraded throw hiera.

    DocImpact

    Closes-bug: #1616553
    Closes-bug: #1621056

    Change-Id: Idf4ff71c04f8a75c572bb24e560b3827f3d55bac