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Because we've agreed that the Gerrit 2.13 upgrade effort is a priority, and because we need to stop relying on the contactstore feature to be able to do that, we should consider the gerrit-contactstore-removal spec a transitive priority as an explicit dependency of a priority spec. Change-Id: I1b12bca9eb9b46dacbc42e9f36b8f6042ee3d90c
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Copyright 2015 OpenStack Foundation
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This work is licensed under a Creative Commons Attribution 3.0
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Unported License.
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http://creativecommons.org/licenses/by/3.0/legalcode
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===================
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Gerrit 2.13 Upgrade
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===================
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We will upgrade our current Gerrit 2.11 production instance to 2.13.
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Problem Description
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===================
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Our production Gerrit server is two minor releases behind the latest
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release of Gerrit. We want to update gerrit from 2.11.4 to 2.13.x so
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that we can get the latest features and bug fixes. Also we don't
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want to fall to far behind upstream otherwise it might be more
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difficult to upgrade later.
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Proposed Change
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===============
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Upgrade to Gerrit 2.13 in a maintenance window.
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Alternatives
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------------
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1. Stay on 2.11. and go without useful new fixes/features.
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Pros: We know the issues with this release.
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Cons: We are behind upstream and don't get many new features.
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2. Upgrade to 2.12.x
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Many companies have already upgraded to 2.12.x which makes this a viable
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option.
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Pros: Other companies have vetted this version.
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Cons: Fixes might be difficult to get into this branch.
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3. Upgrade to master
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Pros: May get fixes faster on master than on stable branches
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Cons: Only Google and GerritForge is on master.
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Risks
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-----
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2.13.x has not been installed by many companies so it really hasn't been
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vetted by other companies yet.
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Implementation
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==============
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Assignee(s)
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-----------
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Primary assignee:
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zaro
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Gerrit Topic
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------------
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Use Gerrit topic "gerrit-upgrade" for all patches related to this spec.
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.. code-block:: bash
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git-review -t gerrit-upgrade
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Work Items
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----------
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We don't have a zuul dev environemnt that uses review-dev. Currently zuul-dev.o.o
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does not run jobs for review-dev.o.o. The first step is to update zuul-dev.o.o to
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simulate production zuul. We need to update it to the same version and get it to
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run jobs triggered off of the gerrit stream events. Once that happens we'll have
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a valid dev environment for testing Gerrit 2.13. There's more on testing gerrit
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in the testing section.
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In case we need to rollback, we should create a mysql database rollback script.
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Create a fork from Gerrit stable-2.13 branch and add build jobs for 2.13 and it's
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associated plugins.
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Puppet up some changes to swap out new versions.
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Repositories
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------------
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Create an 'openstack/2.13.1' fork from the latest Gerrit 2.13.x tag
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Servers
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-------
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N/A
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DNS Entries
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-----------
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N/A
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Documentation
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-------------
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N/A
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Security
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--------
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N/A
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Testing
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-------
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We need to update review-dev.o.o with Gerrit 2.13 and test the
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following integrations:
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- data migration
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- gerrit replication
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- gerrit javascript (toggle-ci & test results)
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- jeepyb integration
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- zuul integration
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- storyboard integration (its-storyboard plugin)
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- launchpad integration
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- gerrty
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- rollback
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- javamelody plugin
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- gerrit hooks
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- git-review
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Dependencies
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============
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Because Gerrit 2.12 and later have dropped the ``contact store``
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feature, we need to first :doc:`stop relying on it
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<gerrit-contactstore-removal>`.
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