Merge "Remove centos bootstrap from fuel"
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This work is licensed under a Creative Commons Attribution 3.0 Unported
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License.
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http://creativecommons.org/licenses/by/3.0/legalcode
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=================================
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Remove CentOS bootstrap from Fuel
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=================================
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https://blueprints.launchpad.net/fuel/+spec/remove-centos-bootstrap-from-fuel
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--------------------
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Problem description
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--------------------
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At the moment we build Centos bootstrap OS image together with ISO and then
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package it into rpm. Since Fuel 8.0 we switched to Ubuntu bootstrap image
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usage [1]_ and CentOS one became deprecated, so in Fuel 9.0 we can freely
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remove it [2]_.
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By removing fuel-bootstrap-image [2]_ we:
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* simplify patching/update story, since we don't need to rebuild/deliver this
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package on changes in dependent packages [3]_.
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* speed-up ISO build process, since building centos bootstrap image takes ~ 20%
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of build-iso time.
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----------------
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Proposed changes
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----------------
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Remove CentOS bootstrap image usage from Fuel projects.
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Web UI
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======
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None
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Nailgun
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=======
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Data model
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----------
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None
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REST API
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--------
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None
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Orchestration
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=============
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RPC Protocol
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------------
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None
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Fuel Client
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===========
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None
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Plugins
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=======
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None
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Fuel Library
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============
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* CentOS cobbler profiles should be removed from fuel-library code
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* The default `bootstrap_profile` should be set to `ubuntu_bootstrap`
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------------
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Alternatives
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------------
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Currently we build Ubuntu bootstrap OS image on the master node using
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Fuel Agent. Although Fuel Agent does not support building Centos images
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we can implement such functionality.
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We need to implement build image utilities for Centos and modify Fuel Agent
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build image manager method and probably input data driver so as to make it
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possible to use Fuel Agent to build Centos images.
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--------------
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Upgrade impact
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--------------
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We no longer need to deliver/update fuel-bootstrap-image package [2], this will
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simplify patching/update story, since we don't need to rebuild this package on
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each changes in any dependent packages [3]_:
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* fuel-agent;
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* nailgun-agent;
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* nailgun-mcagents;
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* network-checker;
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* rubygem-ffi-yajl;
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* rubygem-ffi;
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* rubygem-mime-types;
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* rubygem-mixlib-shellout;
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* rubygem-wmi-lite.
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---------------
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Security impact
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---------------
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None
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--------------------
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Notifications impact
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--------------------
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None
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---------------
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End user impact
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---------------
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None
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------------------
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Performance impact
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------------------
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* ISO build time decreased at least for ~20%
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* The OpenStack nodes themselves are not affected in any way
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-----------------
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Deployment impact
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-----------------
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* CentOS bootstrap image profile should be removed from cobbler
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* CentOS flavour should be removed from fuel-menu
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----------------
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Developer impact
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----------------
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None
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---------------------
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Infrastructure impact
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---------------------
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None
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--------------------
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Documentation impact
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--------------------
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Changes should be reflected in documentation.
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--------------
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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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`Sergey Kulanov`_
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Work Items
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==========
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* Remove CentOS bootstrap image selection from `fuel-menu <https://github.com/openstack/fuel-menu>`_
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* Switch to Ubuntu bootstrap in `fuel-library <https://github.com/openstack/fuel-library>`_
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* Remove fuel-bootstrap-image [2]_
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* Remove related code from `fuel-qa <https://github.com/openstack/fuel-qa>`_ and
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`fuel-devops <https://github.com/openstack/fuel-devops>`_
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Dependencies
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============
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None
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------------
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Testing, QA
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------------
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Related changes should be made in `fuel-devops <https://github.com/openstack/fuel-devops>`_
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and `fuel-qa <https://github.com/openstack/fuel-qa>`_ since `bootstrap.rsa`
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key file will no longer exist
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Acceptance criteria
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===================
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* ISO should pass QA acceptance criteria (SWARM % pass)
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* User should not ba able to use CentOS bootstrap image
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----------
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References
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----------
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.. _`Sergey Kulanov`: https://launchpad.net/~skulanov
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.. [1] `Use Ubuntu as an operating system of Fuel bootstrap nodes <https://blueprints.launchpad.net/fuel/+spec/fuel-bootstrap-on-ubuntu>`_
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.. [2] `fuel-bootstrap-image RPM package spec <https://github.com/openstack/fuel-main/blob/master/packages/rpm/specs/fuel-bootstrap-image.spec>`_
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.. [3] `fuel-bootstrap-image dependencies <https://github.com/openstack/fuel-main/blob/master/bootstrap/module.mk#L12-L50>`_
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