143 lines
4.7 KiB
ReStructuredText
143 lines
4.7 KiB
ReStructuredText
Configure the Compute service to use the Bare Metal service
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The Compute service needs to be configured to use the Bare Metal service's
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driver. The configuration file for the Compute service is typically located at
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``/etc/nova/nova.conf``.
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.. note::
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As of the Newton release, it is possible to have multiple
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nova-compute services running the ironic virtual driver (in
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nova) to provide redundancy. Bare metal nodes are mapped to the
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services via a hash ring. If a service goes down, the
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available bare metal nodes are remapped to different services.
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Once active, a node will stay mapped to the same nova-compute
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even when it goes down. The node is unable to be managed through
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the Compute API until the service responsible returns to an active
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state.
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The following configuration file must be modified on the Compute
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service's controller nodes and compute nodes.
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#. Change these configuration options in the ``default`` section, as follows:
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.. code-block:: ini
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[default]
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# Driver to use for controlling virtualization. Options
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# include: libvirt.LibvirtDriver, xenapi.XenAPIDriver,
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# fake.FakeDriver, baremetal.BareMetalDriver,
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# vmwareapi.VMwareESXDriver, vmwareapi.VMwareVCDriver (string
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# value)
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#compute_driver=<None>
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compute_driver=ironic.IronicDriver
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# Firewall driver (defaults to hypervisor specific iptables
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# driver) (string value)
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#firewall_driver=<None>
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firewall_driver=nova.virt.firewall.NoopFirewallDriver
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# The scheduler host manager class to use (string value)
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#scheduler_host_manager=host_manager
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scheduler_host_manager=ironic_host_manager
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# Virtual ram to physical ram allocation ratio which affects
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# all ram filters. This configuration specifies a global ratio
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# for RamFilter. For AggregateRamFilter, it will fall back to
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# this configuration value if no per-aggregate setting found.
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# (floating point value)
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#ram_allocation_ratio=1.5
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ram_allocation_ratio=1.0
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# Amount of disk in MB to reserve for the host (integer value)
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#reserved_host_disk_mb=0
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reserved_host_memory_mb=0
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# Determines if the Scheduler tracks changes to instances to help with
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# its filtering decisions (boolean value)
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#scheduler_tracks_instance_changes=True
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scheduler_tracks_instance_changes=False
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# New instances will be scheduled on a host chosen randomly from a subset
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# of the N best hosts, where N is the value set by this option. Valid
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# values are 1 or greater. Any value less than one will be treated as 1.
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# For ironic, this should be set to a number >= the number of ironic nodes
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# to more evenly distribute instances across the nodes.
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#scheduler_host_subset_size=1
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scheduler_host_subset_size=9999999
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If you have not migrated to using :ref:`scheduling-resource-classes`, then
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the following should be set as well:
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.. code-block:: ini
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[default]
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# Flag to decide whether to use baremetal_scheduler_default_filters or not.
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# (boolean value)
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#scheduler_use_baremetal_filters=False
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scheduler_use_baremetal_filters=True
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This option is deprecated and has to be unset after migration
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to resource classes.
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#. Change these configuration options in the ``ironic`` section.
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Replace:
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- ``IRONIC_PASSWORD`` with the password you chose for the ``ironic``
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user in the Identity Service
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- ``IRONIC_NODE`` with the hostname or IP address of the ironic-api node
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- ``IDENTITY_IP`` with the IP of the Identity server
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.. code-block:: ini
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[ironic]
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# Ironic authentication type
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auth_type=password
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# Keystone API endpoint
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auth_url=http://IDENTITY_IP:35357/v3
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# Ironic keystone project name
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project_name=service
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# Ironic keystone admin name
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username=ironic
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# Ironic keystone admin password
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password=IRONIC_PASSWORD
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# Ironic keystone project domain
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# or set project_domain_id
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project_domain_name=Default
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# Ironic keystone user domain
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# or set user_domain_id
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user_domain_name=Default
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#. On the Compute service's controller nodes, restart the ``nova-scheduler``
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process:
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.. code-block:: console
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Fedora/RHEL7/CentOS7/SUSE:
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sudo systemctl restart openstack-nova-scheduler
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Ubuntu:
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sudo service nova-scheduler restart
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#. On the Compute service's compute nodes, restart the ``nova-compute``
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process:
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.. code-block:: console
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Fedora/RHEL7/CentOS7/SUSE:
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sudo systemctl restart openstack-nova-compute
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Ubuntu:
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sudo service nova-compute restart
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