https://blueprints.launchpad.net/fuel/+spec/ci-for-openstack-from-master
This specification describes CI for OpenStack from master - from building packages to releasing tested community ISO that will deploy latest OpenStack. Creating such process will benefit OpenStack developers as well as Fuel developers.
Every OpenStack developer needs some tool to deploy latest code plus his own work to perform functional testing. Fuel is the most sophisticated OpenStack deployment tool and a great candidate for such work. But it is always one step back regarding OpenStack releases it supports.
Create CI analogous to our current CI for regular releases but targeted at master branch of OpenStack.
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Community users get Fuel ISOs with master OpenStack.
Fuel developers need to monitor test results and continuously update fuel-library to support master OpenStack. For every OpenStack master compatibility change in the Fuel code, a reasonable effort should be dedicated to making that change backwards compatible with the currently supported stable OpenStack version.
A new branch called “future” will be created in fuel-library repository. It is acceptable to put an OpenStack master compatibility change in this branch, iff the only way to ensure backwards compatibility is to introduce a conditional statement with a check for specific OpenStack release. Every time a change is merged to a “future” branch, the core reviewer approving the change is responsible for rebasing the whole “future” branch onto the current head of master branch of the corresponding Fuel git repository.
Creating CI for master OpenStack puts additional load on Jenkins masters and slaves (OSCI Jenkins, Fuel Jenkins). The amount of load is comparable to existing CI branches for releases.
New jobs will be created, similar to jobs for numbered releases. Existing jobs will be not affected. Also it’s necessary to create one additional type of Jenkins jobs. Usually package is built when developer uploads and then submits a change request. In case with master branch OpenStack code is synchronized with upstream daily via git (without CRs). Thus we need to perform daily builds of OpenStack packages. Jobs that perform this task are called autobuild-master jobs.
A new kind of release appears: community ISO with master OpenStack.
Create branch “future” in fuel-library repository.
Create OSCI Jenkins jobs to build master branch of system packages, dependencies and OpenStack.
Build OpenStack packages after new patch set was uploaded.
master.mos.build-rpm-deps-request Build OpenStack dependencies and system packages after new patch set was uploaded.
Build OpenStack packages after merge.
Build OpenStack dependencies and system packages after merge.
Build OpenStack packages every day.
Create OSCI Jenkins jobs to copy packages to mirrors.
Publish built package in repository.
Create OSCI Jenkins jobs to test packages.
Simple install test for packages built from patch set.
Create Fuel Jenkins jobs to perform per-commit tests for fuel-library.
Deployment tests.
Create Fuel Jenkins jobs to build ISOs.
Create Fuel Jenkins jobs to test ISOs.
Release tested ISOs via fuel-infra.org.
Related to task of supporting master OpenStack in Fuel.
Packages built with these jobs will be tested for installation only. ISOs will be tested with most generic fuel-qa tests, Tempest and Rally. Status of all jobs, including latest successful build of ISO, will be available on Fuel Jenkins.
Documentation about CI process, master ISOs should be written. Announcement will be sent to OpenStack community mailing lists.
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