openstack/nova-powervm
Code Issues Proposed changes

Initial Load of Nova PowerVM Project

Browse Source 
Initial work to enable the Nova PowerVM project in git.

The work done here provides:
 - .gitignore - Indicate which files not to track within Git.
 - .gitreview - Input to the git-review command on how to send to
                Gerrit.
 - .testr.conf - Conf file input for the testr command (UT)
 - CONTRIBUTING.rst - Information on how to contribute.
 - HACKING.rst - Information on what needs to be done for updates.
 - LICENSE - The license for the project
 - README.rst - Information on what this project is.  Currently this is
                the blueprint.
 - openstack-common.conf - Required openstack configuration for all
                           projects
 - setup.cfg - Input to the setup.py on how to execute certain actions.
 - setup.py - Used for build of the project.
 - requirements.txt - Required packages (and levels) to run the code.
 - test-requirements.txt - Required packages (and levels) in addition
                           to the requirements, that indicates what is
                           needed to run the UT.
 - tox.ini - The input for the tox commands.

In addition, a base set of packages for the agent and unit tests were
loaded in.

Change-Id: Iaa186e449e7e0f75dc06a033d024a23d7faa0267
This commit is contained in:
Drew Thorstensen 2014-10-20 10:44:01 -05:00
parent 2af6e5a926
commit 095e1c183b
19 changed files with 776 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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build/*
.testrepository
.tox/
nova_powervm.egg-info/
*.pyc

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[gerrit]
host=***REMOVED***
port=29418
project=nova-powervm.git

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[DEFAULT]
test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
${PYTHON:-python} -m subunit.run discover -t ./ . $LISTOPT $IDOPTION
test_id_option=--load-list $IDFILE
test_list_option=--list

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If you would like to contribute to the development of OpenStack,
you must follow the steps in the "If you're a developer, start here"
section of this page:
http://wiki.openstack.org/HowToContribute
Once those steps have been completed, changes to OpenStack
should be submitted for review via the Gerrit tool, following
the workflow documented at:
http://wiki.openstack.org/GerritWorkflow
Pull requests submitted through GitHub will be ignored.
Bugs should be filed on Launchpad, not GitHub:
https://bugs.launchpad.net/nova-powervm

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Nova-PowerVM Style Commandments
===============================
- Step 1: Read the OpenStack Style Commandments
http://docs.openstack.org/developer/hacking/
- Step 2: Read on
Nova-PowerVM Specific Commandments
----------------------------------
- Follow the Nova HACKING.rst
Creating Unit Tests
-------------------
For every new feature, unit tests should be created that both test and
(implicitly) document the usage of said feature. If submitting a patch for a
bug that had no unit test, a new passing unit test should be added. If a
submitted bug fix does have a unit test, be sure to add a new one that fails
without the patch and passes with the patch.
For more information on creating unit tests and utilizing the testing
infrastructure in OpenStack Nova, please read ``nova/tests/README.rst``.

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===================
PowerVM Nova Driver
===================
Include the URL of your launchpad blueprint:
https://blueprints.launchpad.net/neutron/+spec/example
The IBM PowerVM hypervisor provides virtualization on POWER hardware. PowerVM
admins can see benefits in their environments by making use of OpenStack.
This driver (along with a Neutron ML2 compatible agent and Ceilometer agent)
will provide capability for admins of PowerVM (which encapsulates PHYP and
Virtual I/O Servers) to use OpenStack natively.
Problem Description
===================
As a new ecosystem evolves around the POWER platform, there is not an
OpenStack driver that meets all of the needs for that ecosystem. The work
done here is to build a PowerVM driver in within the broader community. This
will sit alongside the existing libvirt driver utilized by PowerKVM
environments.
This new driver must meet the following:
* Built within the community
* Fits the OpenStack model
* Utilizes automated functional and unit tests
* Enables use of PowerVM systems through the OpenStack APIs
* Allows attachment of volumes from Cinder over supported protocols
The use cases should be the following:
* As a deployer, all of the standard lifecycle operations (start, stop,
reboot, migrate, destroy, etc...) should be supported on a PowerVM based
instance.
* As a deployer, I should be able to capture an instance to an image.
Proposed Change
===============
The changes proposed are the following:
* Create a PowerVM based driver in a StackForge project. This will implement
the nova/virt/driver Compute Driver.
* Provide deployments that work with the OpenStack model.
* Driver will be implemented using a new version of the PowerVM REST API.
* Ephemeral disks will be supported either with Virtual I/O Server (VIOS)
hosted local disks or via Shared Storage Pools (a PowerVM cluster file
system).
* Volume support will be via Cinder through supported protocols for the
Hypervisor.
* Network integration will be supported via a ML2 compatible Neutron Agent.
* Automated Functional Testing will be provided to validate changes from the
broader OpenStack community against the PowerVM driver.
* Thorough unit testing will be provided for the driver.
The changes proposed will bring support for the PowerVM hypervisor into the
OpenStack ecosystem, following the OpenStack development model.
This development is planned to be done in StackForge in a project named
‘powervm’. The intent is that the completion of this work will provide the
foundation to bring the PowerVM Nova driver (with supporting components) into
Nova Core via a separate BluePrint in the L release of OpenStack.
Until the subsequent BluePrint is proposed for the L release, this driver is
to be considered experimental.
Data Model Impact
-----------------
No data model impacts are anticipated as part of this work.
REST API Impact
---------------
The intent of this work item is to enable PowerVM to fit within the broader
OpenStack ecosystem, without requiring changes to the REST API.
As such, no REST API impacts are anticipated.
Security Impact
---------------
The user may need to configure the credentials to communicate with the PowerVM
REST API via a CONF file. These should be encoded.
New root wrap policies may need to be updated to support various commands for
the PowerVM REST API.
No other security impacts are foreseen.
Notifications Impact
--------------------
No new notifications are anticipated.
Other End User Impact
---------------------
The administrator will notice new logging messages in the nova compute logs.
Performance Impact
------------------
It is a goal of the driver to deploy systems with the same speed and agility
as the libvirt driver within OpenStack.
Since this process should match the OpenStack model, it is not planned to add
any new periodic tasks, database queries or other items.
Performance impacts should be limited to the Compute Driver, as the changes
should be consolidated within the driver on the endpoint. The API processes
for instance should not be impacted.
Other Deployer Impact
---------------------
The cloud administrator will need to refer to documentation on how to
configure OpenStack for use with a PowerVM hypervisor.
The existing configuration file attributes will be reused as much as possible.
This reduces the number of PowerVM specific items that will be needed.
However, the driver is likely to need some PowerVM specific options.
In this case, we plan to keep the PowerVM specifics contained within the
configuration file (and driver code). Any new configuration options will have
the prefix "powervm_".
There should be no impact to customers upgrading their cloud stack as this is
a genesis driver and should not have database impacts.
Developer Impact
----------------
The code for this driver will be contained within a powervm StackForge
project. The driver will be contained within /nova/virt/powervm/. The driver
will extend nova.virt.driver.ComputeDriver.
The code will interact with PowerVM through an Open Sourced python binding
that is being defined. This python binding is a wrapper to the PowerVM REST
API. All operations to the hypervisor will go through the PowerVM REST API
via this binding. The driver will be maintained to support future revisions
of the PowerVM REST API as needed.
For ephemeral disk support, either a Virtual I/O Server hosted local disk or a
Shared Storage Pool (a PowerVM clustered file system) will be supported. For
volume attachments, the driver will support Cinder based attachments via
protocols supported by the hypervisor.
For networking, a blueprint is being proposed for the Neutron project that
will provide a Neutron ML2 Agent. This too will be developed in StackForge,
and a subsequent blueprint will be created to move to Neutron Core in the L
release of OpenStack. The Agent will provide the necessary configuration on
the Virtual I/O Server. The Nova driver code will have a
/nova/virt/powervm/vif.py file that will configure the network adapter on the
client VM.
Automated functional testing will be provided through a third party continuous
integration system. It will monitor for incoming Nova change sets, run a set
of functional tests (lifecycle operations) against the incoming change, and
provide a non-gating vote (+1 or -1).
Developers should not be impacted by these changes unless they wish to try the
driver.
Until the driver is accepted into Nova core it will be considered experimental.
Community Impact
----------------
The intent of this blueprint is to bring another driver to OpenStack that
aligns with the ideals and vision of the community.
It will be discussed in the Nova IRC and mailing lists. Representatives
working on this driver will be at the design summit, though no sessions are
planned on this topic.
Alternatives
------------
No alternatives appear viable to bring PowerVM support into the OpenStack
community.
Implementation
==============
Assignee(s)
-----------
Primary assignee:
kyleh
Other contributors:
thorst
dwarcher
efried
Work Items
----------
* Create a base PowerVM driver that is non-functional, but defines the methods
that need to be implemented.
* Implement the host statistics methods (get_host_stats, get_host_ip_addr,
get_host_cpu_stats, get_host_uptime, etc.).
* Implement the spawn method.
* Implement the destroy method.
* Implement the instance information methods (list_instances, instance_exists,
poll_rebooting_instances, etc.).
* Implement the live migration methods. Note that, for ephemeral disks, this
will be specific to Shared Storage Pool environments where the Virtual I/O
Servers on the source and target systems share the same (clustered) file
system.
* Implement support for Cinder volume operations.
* Implement an option to configure an internal management NIC - used for
Resource Monitoring and Control (RMC) – as part of deploy. This is a
prerequisite for migration and resize. This will be controlled as part of
the CONF file.
* Implement the network interface methods (attach_interface and
detach_interface). Delegate the Virtual I/O Server work to the
corresponding Neutron ML2 agent.
* Implement an automated functional test server that listens for incoming
commits from the community and provides a non-gating vote (+1 or -1) on the
change.
Dependencies
============
* Will utilize the PowerVM REST API specification for management. Will
utilize future versions of this specification as it becomes available:
http://ibm.co/1lThV9R
* Will build on top of a new open source python binding to previously noted
PowerVM REST API. This will be a prerequisite to utilizing the driver.
Testing
=======
Tempest Tests
-------------
Since the tempest tests should be implementation agnostic, the existing
tempest tests should be able to run against the PowerVM driver without issue.
This blueprint does not foresee any changes based off this driver.
Thorough unit tests will be created within the Nova project to validate
specific functions within this driver implementation.
Functional Tests
----------------
A third party functional test environment will be created. It will monitor
for incoming nova change sets. Once it detects a new change set, it will
execute the existing lifecycle API tests. A non-gating vote (+1 or -1) will
be provided with information provided (logs) based on the result.
API Tests
---------
The REST APIs are not planned to change as part of this. Existing APIs should
be valid. All testing is planned within the functional testing system and via
unit tests.
Documentation Impact
====================
User Documentation
------------------
Documentation will be contributed which identifies how to configure the
driver. This will include configuring the dependencies specified above.
Documentation will be done on wiki, specifically at a minimum to the following
page: http://docs.openstack.org/trunk/config-reference/content/
section_compute-hypervisors.html
Interlock will be done with the OpenStack documentation team.
Developer Documentation
-----------------------
No developer documentation additions are anticipated. If the existing
developer documentation is updated to reflect more hypervisor specific items,
this driver will follow suit.
References
==========
* PowerVM REST API Specification (may require newer versions as they
become available): http://ibm.co/1lThV9R
* PowerVM Virtualization Introduction and Configuration:
http://www.redbooks.ibm.com/abstracts/sg247940.html
* PowerVM Best Practices: http://www.redbooks.ibm.com/abstracts/sg248062.html

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# Copyright 2014 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

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# Copyright 2014 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

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# Copyright 2014 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

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# Copyright 2014 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

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# Copyright 2014 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

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# Copyright 2014 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

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[DEFAULT]
# The base module to hold the copy of openstack.common
base=nova-powervm

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pbr>=0.5.21,<1.0
Babel>=1.3
six>=1.7.0
oslo.serialization>=1.0.0 # Apache-2.0
oslo.utils>=1.0.0 # Apache-2.0
oslo.config>=1.4.0 # Apache-2.0

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[metadata]
name = nova-powervm
summary = PowerVM driver for OpenStack Nova.
description-file = README.rst
author = IBM
author-email = kyleh@us.ibm.com
home-page = ???
classifier =
Environment :: OpenStack
Intended Audience :: Information Technology
Intended Audience :: System Administrators
License :: OSI Approved :: Apache Software License
Operating System :: POSIX :: Linux
Programming Language :: Python
Programming Language :: Python :: 2
Programming Language :: Python :: 2.7
Programming Language :: Python :: 2.6
Programming Language :: Python :: 3
Programming Language :: Python :: 3.3
[files]
packages =
nova-powervm
[build_sphinx]
source-dir = doc/source
build-dir = doc/build
all_files = 1
[upload_sphinx]
upload-dir = doc/build/html
[compile_catalog]
directory = nova-powervm/locale
domain = nova-powervm
[update_catalog]
domain = nova-powervm
output_dir = nova-powervm/locale
input_file = nova-powervm/locale/nova-powervm.pot
[extract_messages]
keywords = _ gettext ngettext l_ lazy_gettext
mapping_file = babel.cfg
output_file = nova-powervm/locale/nova-powervm.pot

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#!/usr/bin/env python
# Copyright 2014 IBM Corp.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
import setuptools
setuptools.setup(
setup_requires=['pbr'],
pbr=True)

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hacking>=0.9.2,<0.10
coverage>=3.6
discover
fixtures>=0.3.14
python-subunit
sphinx>=1.1.2
oslosphinx
testrepository>=0.0.17
testscenarios>=0.4,<0.5
testtools>=0.9.32
mock>=1.0

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[tox]
minversion = 1.6
envlist = py26,py27,py33,pypy,pep8
skipsdist = True
[testenv]
usedevelop = True
install_command = pip install -U {opts} {packages}
setenv =
VIRTUAL_ENV={envdir}
deps = -r{toxinidir}/requirements.txt
-r{toxinidir}/test-requirements.txt
-egit+https://github.com/openstack/nova#egg=nova
commands = python -m nova.openstack.common.lockutils python setup.py testr --slowest --testr-args='{posargs}'
[testenv:pep8]
commands = flake8
[testenv:venv]
commands = {posargs}
[testenv:cover]
commands = python setup.py testr --coverage --testr-args='{posargs}'
[flake8]
ignore = E125,E712,H104
exclude = .venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools
[hacking]
import_exceptions = nova.i18n