.. _configure-tenant-networks: Configure tenant networks ========================= Below is an example flow of how to set up the Bare Metal service so that node provisioning will happen in a multi-tenant environment (which means using the ``neutron`` network interface as stated above): #. Network interfaces can be enabled on ironic-conductor by adding them to the ``enabled_network_interfaces`` configuration option under the ``default`` section of the configuration file:: [DEFAULT] ... enabled_network_interfaces=noop,flat,neutron Keep in mind that, ideally, all ironic-conductors should have the same list of enabled network interfaces, but it may not be the case during ironic-conductor upgrades. This may cause problems if one of the ironic-conductors dies and some node that is taken over is mapped to an ironic-conductor that does not support the node's network interface. Any actions that involve calling the node's driver will fail until that network interface is installed and enabled on that ironic-conductor. #. It is recommended to set the default network interface via the ``default_network_interface`` configuration option under the ``default`` section of the configuration file:: [DEFAULT] ... default_network_interface=neutron This default value will be used for all nodes that don't have a network interface explicitly specified in the creation request. If this configuration option is not set, the default network interface is determined by looking at the ``[dhcp]dhcp_provider`` configuration option value. If it is ``neutron``, then ``flat`` network interface becomes the default, otherwise ``noop`` is the default. #. Define a provider network in the Networking service, which we shall refer to as the "provisioning" network, and add it in the ``neutron`` section of the ironic-conductor configuration file. Using the ``neutron`` network interface requires that ``provisioning_network`` and ``cleaning_network`` configuration options are set to valid identifiers (UUID or name) of networks in the Networking service. If these options are not set correctly, cleaning or provisioning will fail to start:: [neutron] ... cleaning_network=$CLEAN_UUID_OR_NAME provisioning_network=$PROVISION_UUID_OR_NAME Please refer to :doc:`configure-cleaning` for more information about cleaning. .. warning:: Please make sure that the Bare Metal service has exclusive access to the provisioning and cleaning networks. Spawning instances by non-admin users in these networks and getting access to the Bare Metal service's control plane is a security risk. For this reason, the provisioning and cleaning networks should be configured as non-shared networks in the ``admin`` tenant. .. note:: Spawning a bare metal instance onto the provisioning network is impossible, the deployment will fail. The node should be deployed onto a different network than the provisioning network. When you boot a bare metal instance from the Compute service, you should choose a different network in the Networking service for your instance. .. note:: The "provisioning" and "cleaning" networks may be the same network or distinct networks. To ensure that communication between the Bare Metal service and the deploy ramdisk works, it is important to ensure that security groups are disabled for these networks, *or* that the default security groups allow: * DHCP * TFTP * egress port used for the Bare Metal service (6385 by default) * ingress port used for ironic-python-agent (9999 by default) * if using the iSCSI deploy method (``pxe_*`` and ``iscsi_*`` drivers), the ingress port used for iSCSI (3260 by default) * if using the direct deploy method (``agent_*`` drivers), the egress port used for the Object Storage service (typically 80 or 443) * if using iPXE, the egress port used for the HTTP server running on the ironic-conductor nodes (typically 80). #. This step is optional and applicable only if you want to use security groups during provisioning and/or cleaning of the nodes. If not specified, default security groups are used. #. Define security groups in the Networking service, to be used for provisioning and/or cleaning networks. #. Add the list of these security group UUIDs under the ``neutron`` section of ironic-conductor's configuration file as shown below:: [neutron] ... cleaning_network=$CLEAN_UUID_OR_NAME cleaning_network_security_groups=[$LIST_OF_CLEAN_SECURITY_GROUPS] provisioning_network=$PROVISION_UUID_OR_NAME provisioning_network_security_groups=[$LIST_OF_PROVISION_SECURITY_GROUPS] Multiple security groups may be applied to a given network, hence, they are specified as a list. The same security group(s) could be used for both provisioning and cleaning networks. .. warning:: If security groups are configured as described above, do not set the "port_security_enabled" flag to False for the corresponding Networking service's network or port. This will cause the deploy to fail. For example: if ``provisioning_network_security_groups`` configuration option is used, ensure that "port_security_enabled" flag for the provisioning network is set to True. This flag is set to True by default; make sure not to override it by manually setting it to False. #. Install and configure a compatible ML2 mechanism driver which supports bare metal provisioning for your switch. See `ML2 plugin configuration manual `_ for details. #. Restart the ironic-conductor and ironic-api services after the modifications: - Fedora/RHEL7/CentOS7:: sudo systemctl restart openstack-ironic-api sudo systemctl restart openstack-ironic-conductor - Ubuntu:: sudo service ironic-api restart sudo service ironic-conductor restart #. Make sure that the ironic-conductor is reachable over the provisioning network by trying to download a file from a TFTP server on it, from some non-control-plane server in that network:: tftp $TFTP_IP -c get $FILENAME where FILENAME is the file located at the TFTP server. See `Multitenancy in Bare Metal service`_ for required node configuration. .. _`Multitenancy in Bare Metal service`: http://docs.openstack.org/ironic/latest/admin/multitenancy.html#multitenancy