9af42fcebc
Nova provides a mechanism to set static vendordata via a file [1]. This patch provides support in Kolla Ansible for using this feature. Arguably this could be part of a generic mechansim for copying arbitrary config, but: - It's not clear if there is anything else that would take advantage of this - One size might not fit all [1] https://docs.openstack.org/nova/latest/configuration/config.html#api.vendordata_jsonfile_path Change-Id: Id420376d96d0c40415c369ae8dd36e845a781820
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======================
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Nova - Compute Service
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======================
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Nova is a core service in OpenStack, and provides compute services. Typically
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this is via Virtual Machines (VMs), but may also be via bare metal servers if
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Nova is coupled with Ironic.
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Nova is enabled by default, but may be disabled by setting ``enable_nova`` to
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``no`` in ``globals.yml``.
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Virtualisation Drivers
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======================
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The virtualisation driver may be selected via ``nova_compute_virt_type`` in
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``globals.yml``. Supported options are ``qemu``, ``kvm``, and ``vmware``.
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The default is ``kvm``.
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Libvirt
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-------
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Information on the libvirt-based drivers ``kvm`` and ``qemu`` can be found in
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:doc:`libvirt-guide`.
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VMware
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------
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Information on the VMware-based driver ``vmware`` can be found in
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:doc:`vmware-guide`.
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Bare Metal
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----------
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Information on using Nova with Ironic to deploy compute instances to bare metal
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can be found in :doc:`../bare-metal/ironic-guide`.
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Fake Driver
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-----------
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The fake driver can be used for testing Nova's scaling properties without
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requiring access to a large amount of hardware resources. It is covered in
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:doc:`nova-fake-driver`.
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.. _nova-consoles:
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Consoles
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========
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The console driver may be selected via ``nova_console`` in ``globals.yml``.
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Valid options are ``none``, ``novnc`` and ``spice``. Additionally,
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serial console support can be enabled by setting
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``enable_nova_serialconsole_proxy`` to ``yes``.
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Cells
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=====
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Information on using Nova Cells V2 to scale out can be found in
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:doc:`nova-cells-guide`.
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Vendordata
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==========
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Nova supports passing deployer provided data to instances using a
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concept known as Vendordata. If a Vendordata file is located in the
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following path within the Kolla configuration, Kolla will
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automatically use it when the Nova service is deployed or
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reconfigured: ``/etc/kolla/config/nova/vendordata.json``.
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