Installing and Configuring Nova (Controller Node)

Perform the following operations on the controller node.

1. Install components.

   1	yum -y install openstack-nova-api openstack-nova-conductor openstack-nova-novncproxy openstack-nova-scheduler

2. Configure Nova.
   1. Open the /etc/nova/nova.conf file.

      vi /etc/nova/nova.conf

   2. Press i to enter the insert mode and perform the following configurations.
      1. Enable compute and metadata APIs, configure RabbitMQ message queue access, and enable the network service.

         1 2 3 4 5 6 7 8 9 10

         [DEFAULT] enabled_apis = osapi_compute,metadata transport_url = rabbit://openstack:PASSWORD@controller my_ip = 192.168.100.120 use_neutron = true firewall_driver = nova.virt.firewall.NoopFirewallDriver allow_resize_to_same_host = true [filter_scheduler] enabled_filters=RetryFilter,AvailabilityZoneFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter

         

         Replace my_ip with the OpenStack management IP address of the controller node in Table 3.

         Replace PASSWORD with the OpenStack password 123456 described in Installing RabbitMQ.

      2. Configure database access.

         1 2 3 4 5

         [api_database] connection = mysql+pymysql://nova:PASSWORD@controller/nova_api [database] connection = mysql+pymysql://nova:PASSWORD@controller/nova

         

         Replace PASSWORD with the password of the nova user described in Creating the Nova Database.

      3. Configure Identity service access.

         1 2 3 4 5 6 7 8 9 10 11 12

         [api] auth_strategy = keystone [keystone_authtoken] auth_url = http://controller:5000/v3 memcached_servers = controller:11211 auth_type = password project_domain_name = Default user_domain_name = Default project_name = service username = nova password = PASSWORD

         

         Replace PASSWORD with the password of the nova user described in Creating the Nova Database.

      4. In the /etc/nova/nova.conf file, enable the metadata agent and set the password in the [neutron] section.

         1 2 3 4 5 6 7 8 9 10 11 12

         [neutron] url = http://controller:9696 auth_url = http://controller:5000 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = neutron password = PASSWORD service_metadata_proxy = true metadata_proxy_shared_secret = PASSWORD

         

         Replace PASSWORD with the password of the neutron user described in Creating the Neutron Database.

      5. Configure the VNC proxy to use the management IP address of the controller node.

         1 2 3 4 5 6 7

         [vnc] enabled = true server_listen = $my_ip server_proxyclient_address = $my_ip novncproxy_host=0.0.0.0 novncproxy_port=6080 novncproxy_base_url=http://192.168.100.120:6080/vnc_auto.html

         

         Replace 192.168.100.120 with the actual management IP address of the controller node.

      6. Configure the location of the Image service API.

         1 2	[glance] api_servers = http://controller:9292

      7. Configure the lock path.

         1 2	[oslo_concurrency] lock_path = /var/lib/nova/tmp

      8. Configure the access to the Placement service.

         1 2 3 4 5 6 7 8 9

         [placement] region_name = RegionOne project_domain_name = Default project_name = service auth_type = password user_domain_name = Default auth_url = http://controller:5000/v3 username = placement password = PASSWORD

         

         Replace PASSWORD with the password of the placement user described in Creating the Placement Database.

      9. Populate the nova-api database.

         1 2 3 4

         su -s /bin/sh -c "nova-manage api_db sync" nova su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova su -s /bin/sh -c "nova-manage db sync" nova

      10. Check whether cell 0 and cell 1 are correctly registered.

          1	su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova

          

      11. Enable the compute service and configure it to start as the system boots.

          1 2 3 4 5

          systemctl enable openstack-nova-api.service openstack-nova-scheduler.service \ openstack-nova-conductor.service openstack-nova-novncproxy.service systemctl start openstack-nova-api.service openstack-nova-scheduler.service \ openstack-nova-conductor.service openstack-nova-novncproxy.service

   3. Press Esc to exit the insert mode. Type :wq! and press Enter to save the file and exit.