161 lines
4.6 KiB
ReStructuredText
161 lines
4.6 KiB
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=================
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How To Contribute
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=================
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Basics
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~~~~~~
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* Our source code is hosted on `OpenStack GitHub`_, but please do not send pull
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requests there.
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* Please follow usual OpenStack `Gerrit Workflow`_ to submit a patch.
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* Update change log in README.rst on any significant change.
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* It goes without saying that any code change should by accompanied by unit
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tests.
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* Note the branch you're proposing changes to. ``master`` is the current focus
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of development, use ``stable/VERSION`` for proposing an urgent fix, where
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``VERSION`` is the current stable series. E.g. at the moment of writing the
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stable branch is ``stable/1.0``.
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* Please file a launchpad_ blueprint for any significant code change and a bug
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for any significant bug fix.
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.. _OpenStack GitHub: https://github.com/openstack/ironic-inspector
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.. _Gerrit Workflow: http://docs.openstack.org/infra/manual/developers.html#development-workflow
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.. _launchpad: https://bugs.launchpad.net/ironic-inspector
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Development Environment
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~~~~~~~~~~~~~~~~~~~~~~~
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First of all, install *tox* utility. It's likely to be in your distribution
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repositories under name of ``python-tox``. Alternatively, you can install it
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from PyPI.
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Next checkout and create environments::
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git clone https://github.com/openstack/ironic-inspector.git
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cd ironic-inspector
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tox
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Repeat *tox* command each time you need to run tests. If you don't have Python
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interpreter of one of supported versions (currently 2.7 and 3.4), use
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``-e`` flag to select only some environments, e.g.
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::
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tox -e py27
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.. note::
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Support for Python 3 is highly experimental, stay with Python 2 for the
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production environment for now.
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There is a simple functional test that involves fetching the ramdisk from
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Github::
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tox -e func
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Run the service with::
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.tox/py27/bin/ironic-inspector --config-file example.conf
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Of course you may have to modify ``example.conf`` to match your OpenStack
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environment.
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You can develop and test **ironic-inspector** using DevStack - see
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`DevStack Support`_ for the current status.
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DevStack Support
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~~~~~~~~~~~~~~~~
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`DevStack <http://docs.openstack.org/developer/devstack/>`_ provides a way to
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quickly build full OpenStack development environment with requested
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components. There is a plugin for installing **ironic-inspector** on DevStack.
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Example local.conf
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------------------
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::
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[[local|localrc]]
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enable_service ironic ir-api ir-cond
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disable_service n-net n-novnc
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enable_service neutron q-svc q-agt q-dhcp q-l3 q-meta
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disable_service heat h-api h-api-cfn h-api-cw h-eng
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disable_service cinder c-sch c-api c-vol
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enable_plugin ironic-inspector https://github.com/openstack/ironic-inspector
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IRONIC_BAREMETAL_BASIC_OPS=True
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IRONIC_VM_COUNT=2
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IRONIC_VM_SPECS_RAM=1024
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IRONIC_DEPLOY_FLAVOR="fedora deploy-ironic"
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IRONIC_INSPECTOR_RAMDISK_FLAVOR="fedora ironic-discoverd-ramdisk"
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VIRT_DRIVER=ironic
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LOGDAYS=1
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LOGFILE=~/logs/stack.sh.log
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SCREEN_LOGDIR=~/logs/screen
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DEFAULT_INSTANCE_TYPE=baremetal
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TEMPEST_ALLOW_TENANT_ISOLATION=False
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Notes
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-----
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* Replace "fedora" with whatever you have
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* You need at least 1G of RAM for VMs, default value of 512 MB won't work
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* Network configuration is pretty sensitive, better not to touch it
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without deep understanding
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* This configuration disables Heat and Cinder, adjust it if you need these
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services
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* Before restarting stack.sh::
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rm -rf /opt/stack/ironic-inspector
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Test
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----
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There is a test script included::
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source devstack/openrc admin admin
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/opt/stack/ironic-inspector/devstack/exercise.sh
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Usage
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-----
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Start introspection for a node manually::
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source devstack/openrc admin admin
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openstack baremetal introspection start <UUID>
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Then check status via API::
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openstack baremetal introspection status <UUID>
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Writing a Plugin
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~~~~~~~~~~~~~~~~
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**ironic-inspector** allows to hook your code into data processing chain after
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introspection. Inherit ``ProcessingHook`` class defined in
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`ironic_inspector.plugins.base
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<https://github.com/openstack/ironic-inspector/blob/master/ironic_inspector/plugins/base.py>`_
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module and overwrite any or both of the following methods:
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``before_processing(node_info)``
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called before any data processing, providing the raw data. Each plugin in
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the chain can modify the data, so order in which plugins are loaded
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matters here. Returns nothing.
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``before_update(node,ports,node_info)``
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called after node is found and ports are created, but before data is
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updated on a node. Returns JSON patches for node and ports to apply.
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Please refer to the docstring for details and examples.
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