CentOS7安装OpenStack(Rocky版)-04.安装Nova计算服务（控制节点）

上一篇文章分享了glance镜像服务的安装配置，本文主要分享openstack的计算服务Nova的安装和配制方法

------------------ 完美的分割线 ---------------------

nova相关端口：

api:8774
metadata:8775
novncproxy:6080

4.1.在控制节点安装nova计算服务 

1）创建nova相关数据库

# nova服务在本版本新增加了两个数据库，需要注意

mysql -u root -p123456
-----------------------------------
CREATE DATABASE nova_api;
CREATE DATABASE nova;
CREATE DATABASE nova_cell0;
CREATE DATABASE placement;

GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'nova';

GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'nova';

GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'nova';

GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'localhost' IDENTIFIED BY 'placement';
GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'%' IDENTIFIED BY 'placement';

flush privileges;
show databases;
select user,host from mysql.user;
exit
----------------------------------

4.2.在keystone上面注册nova服务

# 创建服务证书

1）在keystone上创建nova用户

cd /server/tools
source keystone-admin-pass.sh
openstack user create --domain default --password=nova nova
openstack user list

2）在keystone上将nova用户配置为admin角色并添加进service项目

# 以下命令无输出

openstack role add --project service --user nova admin

3）创建nova计算服务的实体

openstack service create --name nova --description "OpenStack Compute" compute
openstack service list

4）创建计算服务的API端点（endpoint）

# 计算服务compute

openstack endpoint create --region RegionOne compute public http://controller:8774/v2.1
openstack endpoint create --region RegionOne compute internal http://controller:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://controller:8774/v2.1
openstack endpoint list

5）这个版本的nova增加了placement项目

# 同样，创建并注册该项目的服务证书

openstack user create --domain default --password=placement placement
openstack role add --project service --user placement admin
openstack service create --name placement --description "Placement API" placement

# 创建placement项目的endpoint（API端口）

openstack endpoint create --region RegionOne placement public http://controller:8778
openstack endpoint create --region RegionOne placement internal http://controller:8778
openstack endpoint create --region RegionOne placement admin http://controller:8778
openstack endpoint list

# 完毕

4.3.在控制节点安装nova相关服务 

1）安装nova相关软件包

yum install openstack-nova-api openstack-nova-conductor \
  openstack-nova-console openstack-nova-novncproxy \
  openstack-nova-scheduler openstack-nova-placement-api -y

2）快速修改nova配置

openstack-config --set  /etc/nova/nova.conf DEFAULT enabled_apis  osapi_compute,metadata
openstack-config --set  /etc/nova/nova.conf DEFAULT my_ip 192.168.1.81
openstack-config --set  /etc/nova/nova.conf DEFAULT use_neutron  true 
openstack-config --set  /etc/nova/nova.conf DEFAULT firewall_driver  nova.virt.firewall.NoopFirewallDriver
openstack-config --set  /etc/nova/nova.conf DEFAULT transport_url  rabbit://openstack:openstack@controller
openstack-config --set  /etc/nova/nova.conf api_database connection  mysql+pymysql://nova:nova@controller/nova_api
openstack-config --set  /etc/nova/nova.conf database connection  mysql+pymysql://nova:nova@controller/nova
openstack-config --set  /etc/nova/nova.conf placement_database connection  mysql+pymysql://placement:placement@controller/placement
openstack-config --set  /etc/nova/nova.conf api auth_strategy  keystone 
openstack-config --set  /etc/nova/nova.conf keystone_authtoken auth_url  http://controller:5000/v3
openstack-config --set  /etc/nova/nova.conf keystone_authtoken memcached_servers  controller:11211
openstack-config --set  /etc/nova/nova.conf keystone_authtoken auth_type  password
openstack-config --set  /etc/nova/nova.conf keystone_authtoken project_domain_name  default 
openstack-config --set  /etc/nova/nova.conf keystone_authtoken user_domain_name  default
openstack-config --set  /etc/nova/nova.conf keystone_authtoken project_name  service 
openstack-config --set  /etc/nova/nova.conf keystone_authtoken username  nova 
openstack-config --set  /etc/nova/nova.conf keystone_authtoken password  nova
openstack-config --set  /etc/nova/nova.conf vnc enabled true
openstack-config --set  /etc/nova/nova.conf vnc server_listen '$my_ip'
openstack-config --set  /etc/nova/nova.conf vnc server_proxyclient_address '$my_ip'
openstack-config --set  /etc/nova/nova.conf glance api_servers  http://controller:9292
openstack-config --set  /etc/nova/nova.conf oslo_concurrency lock_path  /var/lib/nova/tmp 
openstack-config --set  /etc/nova/nova.conf placement region_name RegionOne
openstack-config --set  /etc/nova/nova.conf placement project_domain_name Default
openstack-config --set  /etc/nova/nova.conf placement project_name service
openstack-config --set  /etc/nova/nova.conf placement auth_type password
openstack-config --set  /etc/nova/nova.conf placement user_domain_name Default
openstack-config --set  /etc/nova/nova.conf placement auth_url http://controller:5000/v3
openstack-config --set  /etc/nova/nova.conf placement username placement
openstack-config --set  /etc/nova/nova.conf placement password placement
openstack-config --set  /etc/nova/nova.conf scheduler discover_hosts_in_cells_interval 300

# 默认情况下，计算服务使用内置的防火墙服务。由于网络服务包含了防火墙服务，必须使用``nova.virt.firewall.NoopFirewallDriver``防火墙服务来禁用掉计算服务内置的防火墙服务

# 检查生效的nova配置

egrep -v "^#|^$" /etc/nova/nova.conf

# 实例演示：

[root@openstack01 tools]# egrep -v "^#|^$" /etc/nova/nova.conf
[DEFAULT]
enabled_apis = osapi_compute,metadata
my_ip = 192.168.1.81
use_neutron = true
firewall_driver = nova.virt.firewall.NoopFirewallDriver
transport_url = rabbit://openstack:openstack@controller
[api]
auth_strategy = keystone
[api_database]
connection = mysql+pymysql://nova:nova@controller/nova_api
[barbican]
[cache]
[cells]
[cinder]
[compute]
[conductor]
[console]
[consoleauth]
[cors]
[database]
connection = mysql+pymysql://nova:nova@controller/nova
[devices]
[ephemeral_storage_encryption]
[filter_scheduler]
[glance]
api_servers = http://controller:9292
[guestfs]
[healthcheck]
[hyperv]
[ironic]
[key_manager]
[keystone]
[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova
[libvirt]
[matchmaker_redis]
[metrics]
[mks]
[neutron]
[notifications]
[osapi_v21]
[oslo_concurrency]
lock_path = /var/lib/nova/tmp
[oslo_messaging_amqp]
[oslo_messaging_kafka]
[oslo_messaging_notifications]
[oslo_messaging_rabbit]
[oslo_messaging_zmq]
[oslo_middleware]
[oslo_policy]
[pci]
[placement]
region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = placement
[placement_database]
connection = mysql+pymysql://placement:placement@controller/placement
[powervm]
[profiler]
[quota]
[rdp]
[remote_debug]
[scheduler]
discover_hosts_in_cells_interval = 300　　　　　　# 服务端的计算节点多久去检查一次新加入的host主机信息，可以自动将安装好的计算节点主机加入集群
[serial_console]
[service_user]
[spice]
[upgrade_levels]
[vault]
[vendordata_dynamic_auth]
[vmware]
[vnc]
enabled = true
server_listen =$my_ip
server_proxyclient_address =$my_ip
[workarounds]
[wsgi]
[xenserver]
[xvp]
[zvm]

# 以上是生效的配置

3）修改nova的虚拟主机配置文件

# 由于有个包的bug需要配置修改文件，需要修改nova虚拟主机配置文件，增加内容，完整的文件内容如下：

vim /etc/httpd/conf.d/00-nova-placement-api.conf
-----------------------------------
Listen 8778


  WSGIProcessGroup nova-placement-api
  WSGIApplicationGroup %{GLOBAL}
  WSGIPassAuthorization On
  WSGIDaemonProcess nova-placement-api processes=3 threads=1 user=nova group=nova
  WSGIScriptAlias / /usr/bin/nova-placement-api
  = 2.4>
    ErrorLogFormat "%M"
  
  ErrorLog /var/log/nova/nova-placement-api.log
  #SSLEngine On
  #SSLCertificateFile ...
  #SSLCertificateKeyFile ...


Alias /nova-placement-api /usr/bin/nova-placement-api

  SetHandler wsgi-script
  Options +ExecCGI
  WSGIProcessGroup nova-placement-api
  WSGIApplicationGroup %{GLOBAL}
  WSGIPassAuthorization On


# made by zhaoshuai

   = 2.4>
      Require all granted
   
   
      Order allow,deny
      Allow from all
   

-------------------------------------

# 修改完毕重启httpd服务

systemctl restart httpd
systemctl status httpd 

# 实例演示：

[root@openstack01 conf.d]# systemctl restart httpd
[root@openstack01 conf.d]# systemctl status httpd 
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
   Active: active (running) since 一 2018-10-29 13:56:03 CST; 134ms ago
     Docs: man:httpd(8)
           man:apachectl(8)
  Process: 55849 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=0/SUCCESS)
 Main PID: 55861 (httpd)
   Status: "Processing requests..."
   CGroup: /system.slice/httpd.service
           ├─55861 /usr/sbin/httpd -DFOREGROUND
           ├─55862 /usr/sbin/httpd -DFOREGROUND
           ├─55863 /usr/sbin/httpd -DFOREGROUND
           ├─55864 /usr/sbin/httpd -DFOREGROUND
           ├─55865 (wsgi:keystone- -DFOREGROUND
           ├─55866 (wsgi:keystone- -DFOREGROUND
           ├─55867 (wsgi:keystone- -DFOREGROUND
           ├─55868 (wsgi:keystone- -DFOREGROUND
           ├─55869 (wsgi:keystone- -DFOREGROUND
           ├─55870 /usr/sbin/httpd -DFOREGROUND
           ├─55871 /usr/sbin/httpd -DFOREGROUND
           ├─55873 /usr/sbin/httpd -DFOREGROUND
           ├─55874 /usr/sbin/httpd -DFOREGROUND
           └─55875 /usr/sbin/httpd -DFOREGROUND

10月 29 13:56:03 openstack01.zuiyoujie.com systemd[1]: Starting The Apache HTTP Server...
10月 29 13:56:03 openstack01.zuiyoujie.com systemd[1]: Started The Apache HTTP Server.

# 至此，nova计算服务的软件包安装完成

4.4.同步nova数据（注意同步顺序）

# nova_api有32张表，placement有32张表，nova_cell0有110张表，nova也有110张表

1）初始化nova-api和placement数据库

su -s /bin/sh -c "nova-manage api_db sync" nova

# 验证数据库

mysql -h192.168.1.81 -unova -pnova -e "use nova_api;show tables;"
mysql -h192.168.1.81 -uplacement -pplacement -e "use placement;show tables;"

# 实例演示：

[root@openstack01 tools]# su -s /bin/sh -c "nova-manage api_db sync" nova
[root@openstack01 tools]# mysql -h192.168.1.81 -unova -pnova -e "use nova_api;show tables;"
+------------------------------+
| Tables_in_nova_api           |
+------------------------------+
| aggregate_hosts              |
| aggregate_metadata           |
| aggregates                   |
| allocations                  |
| build_requests               |
| cell_mappings                |
| consumers                    |
| flavor_extra_specs           |
| flavor_projects              |
| flavors                      |
| host_mappings                |
| instance_group_member        |
| instance_group_policy        |
| instance_groups              |
| instance_mappings            |
| inventories                  |
| key_pairs                    |
| migrate_version              |
| placement_aggregates         |
| project_user_quotas          |
| projects                     |
| quota_classes                |
| quota_usages                 |
| quotas                       |
| request_specs                |
| reservations                 |
| resource_classes             |
| resource_provider_aggregates |
| resource_provider_traits     |
| resource_providers           |
| traits                       |
| users                        |
+------------------------------+
[root@openstack01 tools]# mysql -h192.168.1.81 -uplacement -pplacement -e "use placement;show tables;"
+------------------------------+
| Tables_in_placement          |
+------------------------------+
| aggregate_hosts              |
| aggregate_metadata           |
| aggregates                   |
| allocations                  |
| build_requests               |
| cell_mappings                |
| consumers                    |
| flavor_extra_specs           |
| flavor_projects              |
| flavors                      |
| host_mappings                |
| instance_group_member        |
| instance_group_policy        |
| instance_groups              |
| instance_mappings            |
| inventories                  |
| key_pairs                    |
| migrate_version              |
| placement_aggregates         |
| project_user_quotas          |
| projects                     |
| quota_classes                |
| quota_usages                 |
| quotas                       |
| request_specs                |
| reservations                 |
| resource_classes             |
| resource_provider_aggregates |
| resource_provider_traits     |
| resource_providers           |
| traits                       |
| users                        |
+------------------------------+

# 通过对比可知，nova_api和placement都有32张表，区别在于nova_api数据库的cell_mappings表多两条数据，存放的是nova和rabbitmq等的配置信息

2）初始化nova_cell0和nova数据库

# 注册cell0数据库

su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova

# 创建cell1单元

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

# 初始化nova数据库

su -s /bin/sh -c "nova-manage db sync" nova

# 检查确认cell0和cell1注册成功

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

# 验证数据库

mysql -h192.168.1.81 -unova -pnova -e "use nova_cell0;show tables;"
mysql -h192.168.1.81 -unova -pnova -e "use nova;show tables;"

# 实例演示：

[root@openstack01 tools]# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
[root@openstack01 tools]# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
c078477e-cb43-40c9-ad8b-a9fde183747d
[root@openstack01 tools]# su -s /bin/sh -c "nova-manage db sync" nova　　　　　　# 这里遇到两个警告信息，不是很严重，后续版本会修复，再重新执行一下就不会报了
/usr/lib/python2.7/site-packages/pymysql/cursors.py:170: Warning: (1831, u'Duplicate index `block_device_mapping_instance_uuid_virtual_name_device_name_idx`. This is deprecated and will be disallowed in a future release.')
  result = self._query(query)
/usr/lib/python2.7/site-packages/pymysql/cursors.py:170: Warning: (1831, u'Duplicate index `uniq_instances0uuid`. This is deprecated and will be disallowed in a future release.')
  result = self._query(query)
[root@openstack01 tools]# mysql -h192.168.1.81 -unova -pnova -e "use nova_cell0;show tables;"
+--------------------------------------------+
| Tables_in_nova_cell0                       |
+--------------------------------------------+
| agent_builds                               |
| aggregate_hosts                            |
| aggregate_metadata                         |
| aggregates                                 |
| allocations                                |
| block_device_mapping                       |
| bw_usage_cache                             |
| cells                                      |
| certificates                               |
| compute_nodes                              |
| console_auth_tokens                        |
| console_pools                              |
| consoles                                   |
| dns_domains                                |
| fixed_ips                                  |
| floating_ips                               |
| instance_actions                           |
| instance_actions_events                    |
| instance_extra                             |
| instance_faults                            |
| instance_group_member                      |
| instance_group_policy                      |
| instance_groups                            |
| instance_id_mappings                       |
| instance_info_caches                       |
| instance_metadata                          |
| instance_system_metadata                   |
| instance_type_extra_specs                  |
| instance_type_projects                     |
| instance_types                             |
| instances                                  |
| inventories                                |
| key_pairs                                  |
| migrate_version                            |
| migrations                                 |
| networks                                   |
| pci_devices                                |
| project_user_quotas                        |
| provider_fw_rules                          |
| quota_classes                              |
| quota_usages                               |
| quotas                                     |
| reservations                               |
| resource_provider_aggregates               |
| resource_providers                         |
| s3_images                                  |
| security_group_default_rules               |
| security_group_instance_association        |
| security_group_rules                       |
| security_groups                            |
| services                                   |
| shadow_agent_builds                        |
| shadow_aggregate_hosts                     |
| shadow_aggregate_metadata                  |
| shadow_aggregates                          |
| shadow_block_device_mapping                |
| shadow_bw_usage_cache                      |
| shadow_cells                               |
| shadow_certificates                        |
| shadow_compute_nodes                       |
| shadow_console_pools                       |
| shadow_consoles                            |
| shadow_dns_domains                         |
| shadow_fixed_ips                           |
| shadow_floating_ips                        |
| shadow_instance_actions                    |
| shadow_instance_actions_events             |
| shadow_instance_extra                      |
| shadow_instance_faults                     |
| shadow_instance_group_member               |
| shadow_instance_group_policy               |
| shadow_instance_groups                     |
| shadow_instance_id_mappings                |
| shadow_instance_info_caches                |
| shadow_instance_metadata                   |
| shadow_instance_system_metadata            |
| shadow_instance_type_extra_specs           |
| shadow_instance_type_projects              |
| shadow_instance_types                      |
| shadow_instances                           |
| shadow_key_pairs                           |
| shadow_migrate_version                     |
| shadow_migrations                          |
| shadow_networks                            |
| shadow_pci_devices                         |
| shadow_project_user_quotas                 |
| shadow_provider_fw_rules                   |
| shadow_quota_classes                       |
| shadow_quota_usages                        |
| shadow_quotas                              |
| shadow_reservations                        |
| shadow_s3_images                           |
| shadow_security_group_default_rules        |
| shadow_security_group_instance_association |
| shadow_security_group_rules                |
| shadow_security_groups                     |
| shadow_services                            |
| shadow_snapshot_id_mappings                |
| shadow_snapshots                           |
| shadow_task_log                            |
| shadow_virtual_interfaces                  |
| shadow_volume_id_mappings                  |
| shadow_volume_usage_cache                  |
| snapshot_id_mappings                       |
| snapshots                                  |
| tags                                       |
| task_log                                   |
| virtual_interfaces                         |
| volume_id_mappings                         |
| volume_usage_cache                         |
+--------------------------------------------+
[root@openstack01 tools]# mysql -h192.168.1.81 -unova -pnova -e "use nova;show tables;"
+--------------------------------------------+
| Tables_in_nova                             |
+--------------------------------------------+
| agent_builds                               |
| aggregate_hosts                            |
| aggregate_metadata                         |
| aggregates                                 |
| allocations                                |
| block_device_mapping                       |
| bw_usage_cache                             |
| cells                                      |
| certificates                               |
| compute_nodes                              |
| console_auth_tokens                        |
| console_pools                              |
| consoles                                   |
| dns_domains                                |
| fixed_ips                                  |
| floating_ips                               |
| instance_actions                           |
| instance_actions_events                    |
| instance_extra                             |
| instance_faults                            |
| instance_group_member                      |
| instance_group_policy                      |
| instance_groups                            |
| instance_id_mappings                       |
| instance_info_caches                       |
| instance_metadata                          |
| instance_system_metadata                   |
| instance_type_extra_specs                  |
| instance_type_projects                     |
| instance_types                             |
| instances                                  |
| inventories                                |
| key_pairs                                  |
| migrate_version                            |
| migrations                                 |
| networks                                   |
| pci_devices                                |
| project_user_quotas                        |
| provider_fw_rules                          |
| quota_classes                              |
| quota_usages                               |
| quotas                                     |
| reservations                               |
| resource_provider_aggregates               |
| resource_providers                         |
| s3_images                                  |
| security_group_default_rules               |
| security_group_instance_association        |
| security_group_rules                       |
| security_groups                            |
| services                                   |
| shadow_agent_builds                        |
| shadow_aggregate_hosts                     |
| shadow_aggregate_metadata                  |
| shadow_aggregates                          |
| shadow_block_device_mapping                |
| shadow_bw_usage_cache                      |
| shadow_cells                               |
| shadow_certificates                        |
| shadow_compute_nodes                       |
| shadow_console_pools                       |
| shadow_consoles                            |
| shadow_dns_domains                         |
| shadow_fixed_ips                           |
| shadow_floating_ips                        |
| shadow_instance_actions                    |
| shadow_instance_actions_events             |
| shadow_instance_extra                      |
| shadow_instance_faults                     |
| shadow_instance_group_member               |
| shadow_instance_group_policy               |
| shadow_instance_groups                     |
| shadow_instance_id_mappings                |
| shadow_instance_info_caches                |
| shadow_instance_metadata                   |
| shadow_instance_system_metadata            |
| shadow_instance_type_extra_specs           |
| shadow_instance_type_projects              |
| shadow_instance_types                      |
| shadow_instances                           |
| shadow_key_pairs                           |
| shadow_migrate_version                     |
| shadow_migrations                          |
| shadow_networks                            |
| shadow_pci_devices                         |
| shadow_project_user_quotas                 |
| shadow_provider_fw_rules                   |
| shadow_quota_classes                       |
| shadow_quota_usages                        |
| shadow_quotas                              |
| shadow_reservations                        |
| shadow_s3_images                           |
| shadow_security_group_default_rules        |
| shadow_security_group_instance_association |
| shadow_security_group_rules                |
| shadow_security_groups                     |
| shadow_services                            |
| shadow_snapshot_id_mappings                |
| shadow_snapshots                           |
| shadow_task_log                            |
| shadow_virtual_interfaces                  |
| shadow_volume_id_mappings                  |
| shadow_volume_usage_cache                  |
| snapshot_id_mappings                       |
| snapshots                                  |
| tags                                       |
| task_log                                   |
| virtual_interfaces                         |
| volume_id_mappings                         |
| volume_usage_cache                         |
+--------------------------------------------+

# 通过对比可知，这两个数据库的表目前完全一样，区别在于nova数据库的service表中有4条数据，存放的是当前版本nova相关服务的注册信息 

5）检查确认cell0和cell1注册成功

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

# 实例演示：

[root@openstack01 conf.d]# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+----------+
|  名称 |                 UUID                 |           Transport URL            |                    数据库连接                   | Disabled |
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 |               none:/               | mysql+pymysql://nova:****@controller/nova_cell0 |  False   |
| cell1 | c078477e-cb43-40c9-ad8b-a9fde183747d | rabbit://openstack:****@controller |    mysql+pymysql://nova:****@controller/nova    |  False   |
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+----------+

# 返回的数据存储在nova_api数据库的cell_mappings表中

4.5.启动nova服务

1）启动nova服务并设置为开机自启动

# 需要启动5个服务

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

systemctl status openstack-nova-api.service openstack-nova-consoleauth.service \
  openstack-nova-scheduler.service openstack-nova-conductor.service \
  openstack-nova-novncproxy.service

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

systemctl list-unit-files |grep openstack-nova* |grep enabled

# 实例演示：

[root@openstack01 conf.d]# systemctl start openstack-nova-api.service \
>   openstack-nova-scheduler.service openstack-nova-conductor.service \
>   openstack-nova-novncproxy.service
[root@openstack01 conf.d]# systemctl status openstack-nova-api.service \
>   openstack-nova-scheduler.service openstack-nova-conductor.service \
>   openstack-nova-novncproxy.service
● openstack-nova-api.service - OpenStack Nova API Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-api.service; disabled; vendor preset: disabled)
   Active: active (running) since 一 2018-10-29 14:30:22 CST; 6s ago
 Main PID: 56510 (nova-api)
   CGroup: /system.slice/openstack-nova-api.service
           ├─56510 /usr/bin/python2 /usr/bin/nova-api
           ├─56562 /usr/bin/python2 /usr/bin/nova-api
           └─56564 /usr/bin/python2 /usr/bin/nova-api

10月 29 14:30:06 openstack01.zuiyoujie.com systemd[1]: Starting OpenStack Nova API Server...
10月 29 14:30:22 openstack01.zuiyoujie.com systemd[1]: Started OpenStack Nova API Server.

● openstack-nova-scheduler.service - OpenStack Nova Scheduler Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-scheduler.service; disabled; vendor preset: disabled)
   Active: active (running) since 一 2018-10-29 14:30:21 CST; 8s ago
 Main PID: 56511 (nova-scheduler)
   CGroup: /system.slice/openstack-nova-scheduler.service
           └─56511 /usr/bin/python2 /usr/bin/nova-scheduler

10月 29 14:30:06 openstack01.zuiyoujie.com systemd[1]: Starting OpenStack Nova Scheduler Server...
10月 29 14:30:21 openstack01.zuiyoujie.com systemd[1]: Started OpenStack Nova Scheduler Server.

● openstack-nova-conductor.service - OpenStack Nova Conductor Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-conductor.service; disabled; vendor preset: disabled)
   Active: active (running) since 一 2018-10-29 14:30:19 CST; 9s ago
 Main PID: 56512 (nova-conductor)
   CGroup: /system.slice/openstack-nova-conductor.service
           └─56512 /usr/bin/python2 /usr/bin/nova-conductor

10月 29 14:30:06 openstack01.zuiyoujie.com systemd[1]: Starting OpenStack Nova Conductor Server...
10月 29 14:30:19 openstack01.zuiyoujie.com systemd[1]: Started OpenStack Nova Conductor Server.

● openstack-nova-novncproxy.service - OpenStack Nova NoVNC Proxy Server
   Loaded: loaded (/usr/lib/systemd/system/openstack-nova-novncproxy.service; disabled; vendor preset: disabled)
   Active: active (running) since 一 2018-10-29 14:30:06 CST; 22s ago
 Main PID: 56513 (nova-novncproxy)
   CGroup: /system.slice/openstack-nova-novncproxy.service
           └─56513 /usr/bin/python2 /usr/bin/nova-novncproxy --web /usr/share/novnc/

10月 29 14:30:06 openstack01.zuiyoujie.com systemd[1]: Started OpenStack Nova NoVNC Proxy Server.
10月 29 14:30:06 openstack01.zuiyoujie.com systemd[1]: Starting OpenStack Nova NoVNC Proxy Server...
[root@openstack01 conf.d]# systemctl enable openstack-nova-api.service \
>   openstack-nova-scheduler.service openstack-nova-conductor.service \
>   openstack-nova-novncproxy.service
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-api.service to /usr/lib/systemd/system/openstack-nova-api.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-scheduler.service to /usr/lib/systemd/system/openstack-nova-scheduler.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-conductor.service to /usr/lib/systemd/system/openstack-nova-conductor.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-novncproxy.service to /usr/lib/systemd/system/openstack-nova-novncproxy.service.
[root@openstack01 conf.d]# systemctl list-unit-files |grep openstack-nova* |grep enabled
openstack-nova-api.service                    enabled 
openstack-nova-conductor.service              enabled 
openstack-nova-novncproxy.service             enabled 
openstack-nova-scheduler.service              enabled 

# 至此，在控制节点安装nova计算服务就完成了，下篇文章介绍独立的nova计算节点的安装方法

======== 完毕，呵呵呵呵 ========