Merge "Update contributing documentation"
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============
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Contributing
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============
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++++++++++++
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.. include:: ../../CONTRIBUTING.rst
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Technical Overview
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==================
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An overview of a typical deployment using bareon is given below:
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.. image:: diagrams/technical_overview.svg
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#. Initiate boot via nova or heat, passing in a reference to the
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``deploy_config`` and any ``driver_actions`` which should be performed
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#. Request IP from neutron
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#. Call ironic to begin deployment
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#. Configure TFTP server
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#. Cache images (deploy kernel & ramdisk, filesystem,
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cloud_default_deploy_config, deploy_config and
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driver_actions) and write provision script for bareon
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#. Update MAC and PXE config
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#. Set boot device to PXE
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#. Reboot target node
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#. Target node gets IP
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#. PXE boot image containing bareon
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#. Bareon calls back to tell Ironic that it is ready
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#. Ironic SFTPs across the provision script and forwards the rsync server
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port by SSH (in secure mode)
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#. Provisioning is triggered by SSH, eg:
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``provision --data_driver ironic --deploy_driver rsync``
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#. Partition and clean local storage, mount partitions, rsync filesystem
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across, write fstab, configure bootloader and unmount partitions
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#. Run driver actions over SSH, eg update BIOS, SFTP file across from Swift
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#. Set boot device to local disk
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#. Reboot the node
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------------------
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Functional testing
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------------------
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==================
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Overview
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--------
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Bareon Agent functional testing performed against a kernel/ramdisk
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built on CentOS minimal. By default the image is built as part of tox command,
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using DIB. Option to use pre-built images available.
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Tests are written using unittest2 and Functional Test Framework
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(ramdisk-func-test). The framework itself uses libvirt (python bindings) to
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configure network, spawn a slave VM running ramdisk. In future we may add
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support for baremetal slaves. Framework resides in a standalone repo.
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Functional tests, as well as commonly changed parts of test data (node
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templates, etc) are located in bareon tree, so that each
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pull request introducing the new functionality to bareon can also carry
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corresponding functional tests update.
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(ramdisk-func-test). The framework uses libvirt (python bindings) to
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configure a network, spawn a slave VM and run test commands.
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The framework resides in a standalone repo, however the functional tests,
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as well as commonly changed parts of test data (node templates, etc) are located
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in the bareon repo, so that these are updated when new functionality is added.
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How to run tests (Devstack / CentOS 7.1 environment)
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----------------------------------------------------
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- Build the devstack environment
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- Install additional dependencies:
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Follow the instructions on Running Bareon on Devstack upto and including
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"Install Bareon and build images".
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.. code-block:: console
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$ sudo yum install yum-utils.noarch
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cd ~/bareon
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sudo yum install -y ansible
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ansible-playbook bareon/tests_functional/ansible/bootstrap_func_tests.yaml
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sudo NO_DIB=1 tox -e func
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- Disable GPG check at the epel repo:
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::
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[epel]
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name=Extra Packages for Enterprise Linux 7 - $basearch
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#baseurl=http://download.fedoraproject.org/pub/epel/7/$basearch
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mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch
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failovermethod=priority
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enabled=1
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gpgcheck=0
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gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
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- Install ramdisk-func-test from source:
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.. code-block:: console
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$ cd /opt/stack/
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$ git clone git@github.com:openstack/ramdisk-func-test.git
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$ cd ramdisk-func-test
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$ sudo python setup.py develop
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- Configure ramdisk-func-test framework
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.. code-block:: console
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# Create config
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$ sudo mkdir /etc/ramdisk-func-test
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$ sudo chown $USER:$USER /etc/ramdisk-func-test
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$ touch /etc/ramdisk-func-test/ramdisk-func-test.conf
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# Open port for the Ironic API stub
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$ sudo iptables -I INPUT -p tcp --dport 8011 -j ACCEPT
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# Configure rsync daemon
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$ python ramdisk-func-test/tools/setup_rsync.py
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- Get bareon source:
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.. code-block:: console
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$ cd /opt/stack/
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$ git clone git@github.com:openstack/bareon.git
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- Run tests
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.. code-block:: console
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$ cd /opt/stack/bareon
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# Build image & run all tests
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$ tox
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# Build image & run only functional tests
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$ tox -efunc
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# Run only functional tests without image rebuild (assuming you already
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# have images at /tmp/rft_image_build)
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$ NO_DIB=1 tox -efunc
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# Run only functional tests without syncing golden images with server
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$ NO_SYNC=1 tox -efunc
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# Run a single functional test:
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$ tox -efunc bareon/tests_functional/test_data_retention.py::DataRetentionTestCase::test_clean_policy
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How to run tests (Clean CentOS environment, e.g. CI slave)
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----------------------------------------------------------
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- Provision CI slave
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- Install tox, and other dependencies:
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.. code-block:: console
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$ sudo pip install tox
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$ sudo yum install yum-utils.noarch
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$ sudo yum install dib-utils # Use newt-provided noarch rpm
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- If local KVM is going to be used to run slaves (nested virtualization)
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.. note:: Currently this is a required step (no support for remote qemu)
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.. code-block:: console
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$ sudo yum install libvirt
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$ sudo yum install libvirt-python
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$ echo 'auth_unix_ro = "none"' | sudo tee -a /etc/libvirt/libvirtd.conf
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$ echo 'auth_unix_rw = "none"' | sudo tee -a /etc/libvirt/libvirtd.conf
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$ /bin/systemctl start libvirtd.service
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- Install ramdisk-func-test from source:
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.. code-block:: console
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$ cd /opt/stack/
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$ git clone git@github.com:openstack/ramdisk-func-test.git
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$ cd ramdisk-func-test
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# If this job is triggered by pull request to ramdisk-func-test, checkout
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# PR source branch git checkout <A branch passed by trigger>
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# Otherwise use master
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$ sudo python setup.py develop
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- Configure ramdisk-func-test framework
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.. code-block:: console
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# Create config
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$ sudo mkdir /etc/ramdisk-func-test
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$ sudo chown $USER:$USER /etc/ramdisk-func-test
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$ cp ~/ramdisk-func-test/etc/ramdisk-func-test/ramdisk-func-test.conf.sample \
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/etc/ramdisk-func-test/ramdisk-func-test.conf
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# Open port for the Ironic API stub
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$ sudo iptables -I INPUT -p tcp --dport 8011 -j ACCEPT
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# Configure rsync daemon
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$ cd ramdisk-func-test && sudo python tools/setup_rsync.py
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- Get bareon source:
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.. code-block:: console
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$ cd /opt/stack/
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$ git clone git@github.com:openstack/bareon.git
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# If this job is triggered by pull request to bareon, checkout PR source branch
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$ git checkout <A branch passed by trigger>
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# Otherwise use master
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$ git checkout newt/kilo
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- Configure image build environment If needed (example below). Otherwise default is used.
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- Run all tests
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.. code-block:: console
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$ cd ~/bareon
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$ tox
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.. note::
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By default each time the tests are ran, the bareon images are built and the golden images
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fetched (providing they do not currently exist). To suppress this behaviour set environment
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variables ``NO_DIB`` for the bareon images and ``NO_SYNC`` for the golden images.
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Customizing image build environment
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-----------------------------------
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A default environment file could be found at
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bareon/tests_functional/image_build/centos_minimal_env.sh
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You can override these with your own environment. To run tests using a custom
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You can override these with your own environment. To run the tests using a custom
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environment:
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.. code-block:: console
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$ export BUILD_ENV=/path/to/my_bareon_env.sh
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Using pre-built images
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----------------------
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- Make sure images are at /tmp/rft_image_build and named initramfs and vmlinuz
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- Make sure the fuel_key is at /tmp/rft_image_build
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- Use the following command to run tests:
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.. code-block:: console
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$ cd ~/bareon
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$ NO_DIB=1 tox
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Updating golden images
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----------------------
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According to the https://bugs.launchpad.net/fuel/+bug/1549368 golden images
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are hosted at http://images.fuel-infra.org/rft_golden_images/
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To update existing golden images you need to put them on two hosts. Make sure
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you have the key and proper ssh config.
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.. code-block:: console
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$ cat ~/.ssh/config
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Host fuel-infra-images
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HostName seed-*.fuel-infra.org
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User images
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identityfile ~/.ssh/golden_images_key_rsa
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$ cd /tmp/rft_golden_images
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$ rsync -av --progress . images@seed-cz1.fuel-infra.org:/var/www/images/rft_golden_images/ &
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$ rsync -av --progress . images@seed-us1.fuel-infra.org:/var/www/images/rft_golden_images/ &
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$ export BUILD_ENV=/path/to/my_bareon_env.sh
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