122 lines
3.4 KiB
ReStructuredText
122 lines
3.4 KiB
ReStructuredText
===============================
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Nova role for OpenStack-Ansible
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===============================
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.. toctree::
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:maxdepth: 2
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configure-zun.rst
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app-powervm.rst
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:tags: openstack, zun, cloud, ansible
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:category: \*nix
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This role will install the following Systemd services:
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* zun-server
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* zun-compute
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To clone or view the source code for this repository, visit the role repository
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for `os_zun <https://github.com/openstack/openstack-ansible-os_zun>`_.
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Default variables
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~~~~~~~~~~~~~~~~~
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.. literalinclude:: ../../defaults/main.yml
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:language: yaml
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:start-after: under the License.
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Dependencies
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~~~~~~~~~~~~
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This role needs pip >= 7.1 installed on the target host.
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Example playbook
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~~~~~~~~~~~~~~~~
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.. literalinclude:: ../../examples/playbook.yml
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:language: yaml
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External Restart Hooks
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~~~~~~~~~~~~~~~~~~~~~~
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When the role performs a restart of the service, it will notify an Ansible
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handler named ``Manage LB``, which is a noop within this role. In the
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playbook, other roles may be loaded before and after this role which will
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implement Ansible handler listeners for ``Manage LB``, allowing external roles
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to manage the load balancer endpoints responsible for sending traffic to the
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servers being restarted by marking them in maintenance or active mode,
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draining sessions, etc. For an example implementation, please reference the
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`ansible-haproxy-endpoints role <https://github.com/Logan2211/ansible-haproxy-endpoints>`_
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used by the openstack-ansible project.
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Tags
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~~~~
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This role supports two tags: ``zun-install`` and ``zun-config``
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The ``zun-install`` tag can be used to install and upgrade.
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The ``zun-config`` tag can be used to manage configuration.
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CPU platform compatibility
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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This role supports multiple CPU architecture types. At least one repo_build
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node must exist for each CPU type that is in use in the deployment.
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Currently supported CPU architectures:
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- x86_64 / amd64
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- ppc64le
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At this time, ppc64le is only supported for the Compute node type. It can not
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be used to manage the OpenStack-Ansible management nodes.
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Compute driver compatibility
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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This role supports multiple zun compute driver types. The following
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compute drivers are supported:
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- libvirt (default)
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- ironic
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- lxd (via zun-lxd)
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- powervm (via zun-powervm)
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The driver type is automatically detected by the OpenStack Ansible Nova role
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for the following compute driver types:
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- libvirt (kvm / qemu)
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- powervm
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Any mix and match of compute node types can be used for those platforms,
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except for ironic.
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If using the lxd driver, the compute type must be specified using the
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``zun_virt_type`` variable.
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The ``zun_virt_type`` may be set in
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``/etc/openstack_deploy/user_variables.yml``, for example:
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.. code-block:: shell-session
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zun_virt_type: lxd
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You can set ``zun_virt_type`` per host by using ``host_vars`` in
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``/etc/openstack_deploy/openstack_user_config.yml``. For example:
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.. code-block:: shell-session
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compute_hosts:
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aio1:
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ip: 172.29.236.100
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host_vars:
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zun_virt_type: lxd
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If ``zun_virt_type`` is set in ``/etc/openstack_deploy/user_variables.yml``,
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all nodes in the deployment are set to that hypervisor type. Setting
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``zun_virt_type`` in both ``/etc/openstack_deploy/user_variables.yml`` and
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``/etc/openstack_deploy/openstack_user_config.yml`` will always result in the
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value specified in ``/etc/openstack_deploy/user_variables.yml`` being set on
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all hosts.
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