这个部分将描述如何在控制节点上安装和配置 Compute 服务，即 nova。
一、前提条件
在你安装和配置计算服务前，你必须创建数据库，服务凭证和API端点。
1.完成下面的步骤以创建数据库：
[root@Controller-Node ~]# mysql -uroot -p123456
MariaDB [(none)]> CREATE DATABASE nova;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'nova';
MariaDB [(none)]> CREATE DATABASE nova_api;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'nova';
MariaDB [(none)]> CREATE DATABASE nova_cell0;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'nova';
MariaDB [(none)]> exit2.获得 admin 凭证来获取只有管理员能执行命令的访问权限
[root@Controller-Node ~]# source admin-openrc.sh3.要创建服务证书，完成这些步骤：
1.> 创建 nova 用户,设置密码为nova：
$openstack user create --domain default --password-prompt nova
执行如下：
[root@Controller-Node ~]# openstack user create --domain default --password-prompt nova
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | c7fe14104af14064a862d45a8331837b |
| name | nova |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
[root@Controller-Node ~]#2.>添加admin 角色到 nova 用户：
[root@Controller-Node ~]# openstack role add --project service --user nova admin3.>创建 nova 服务实体：
openstack service create --name nova \
--description "OpenStack Compute" compute
执行如下：
[root@Controller-Node ~]# openstack service create --name nova \
> --description "OpenStack Compute" compute
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Compute |
| enabled | True |
| id | deec4fb34eb64f8f968d304a0bb85bd4 |
| name | nova |
| type | compute |
+-------------+----------------------------------+
[root@Controller-Node ~]#4.>创建计算服务API端点：
$ openstack endpoint create --region RegionOne \
compute public http://10.20.9.13:8774/v2/%\(tenant_id\)s
$ openstack endpoint create --region RegionOne \
compute internal http://10.20.9.13:8774/v2/%\(tenant_id\)s
$ openstack endpoint create --region RegionOne \
compute admin http://10.20.9.13:8774/v2/%\(tenant_id\)s
执行如下：
[root@Controller-Node ~]# openstack endpoint create --region RegionOne \
> compute public http://10.20.9.13:8774/v2/%\(tenant_id\)s
+--------------+-----------------------------------------+
| Field | Value |
+--------------+-----------------------------------------+
| enabled | True |
| id | 1ba627fcb3d145569fbb83c32c9c1e16 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | deec4fb34eb64f8f968d304a0bb85bd4 |
| service_name | nova |
| service_type | compute |
| url | http://10.20.9.13:8774/v2/%(tenant_id)s |
+--------------+-----------------------------------------+
[root@Controller-Node ~]# openstack endpoint create --region RegionOne \
> compute internal http://10.20.9.13:8774/v2/%\(tenant_id\)s
+--------------+-----------------------------------------+
| Field | Value |
+--------------+-----------------------------------------+
| enabled | True |
| id | efd5e04872954088b09f9474da5c46d5 |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | deec4fb34eb64f8f968d304a0bb85bd4 |
| service_name | nova |
| service_type | compute |
| url | http://10.20.9.13:8774/v2/%(tenant_id)s |
+--------------+-----------------------------------------+
[root@Controller-Node ~]# openstack endpoint create --region RegionOne \
> compute admin http://10.20.9.13:8774/v2/%\(tenant_id\)s
+--------------+-----------------------------------------+
| Field | Value |
+--------------+-----------------------------------------+
| enabled | True |
| id | 0f21127572b94416bc6374edf6131c4b |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | deec4fb34eb64f8f968d304a0bb85bd4 |
| service_name | nova |
| service_type | compute |
| url | http://10.20.9.13:8774/v2/%(tenant_id)s |
+--------------+-----------------------------------------+
[root@Controller-Node ~]#5.新建另一个用户,密码设为nova
[root@Controller-Node ~]# openstack user create --domain default --password-prompt placement
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | ab033f42e4064f898886447d07891d22 |
| name | placement |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+加入管理员组
[root@Controller-Node ~]# openstack role add --project service --user placement admin6.在服务目录中创建Placement API条目
[root@Controller-Node ~]# openstack service create --name placement --description "Placement API" placement
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | Placement API |
| enabled | True |
| id | cccfe79b58c346928b1c56c38fb3d4b3 |
| name | placement |
| type | placement |
+-------------+----------------------------------+
[root@Controller-Node ~]#7.创建Placement API服务端点：
[root@Controller-Node ~]# openstack endpoint create --region RegionOne placement public http://10.20.9.13:8778
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | d80c7e76ff8f4a69a36c0f9cd891f734 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | cccfe79b58c346928b1c56c38fb3d4b3 |
| service_name | placement |
| service_type | placement |
| url | http://10.20.9.13:8778 |
+--------------+----------------------------------+
[root@Controller-Node ~]# openstack endpoint create --region RegionOne placement internal http://10.20.9.13:8778
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | baafdcbb3cb2460e89b3dd62fbeeb9fc |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | cccfe79b58c346928b1c56c38fb3d4b3 |
| service_name | placement |
| service_type | placement |
| url | http://10.20.9.13:8778 |
+--------------+----------------------------------+
[root@Controller-Node ~]# openstack endpoint create --region RegionOne placement admin http://10.20.9.13:8778
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 3c621088b21247679ce071bab4296dd1 |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | cccfe79b58c346928b1c56c38fb3d4b3 |
| service_name | placement |
| service_type | placement |
| url | http://10.20.9.13:8778 |
+--------------+----------------------------------+
[root@Controller-Node ~]#查看catalog列表
[root@Controller-Node ~]# openstack catalog list
+-----------+-----------+------------------------------------------------------------------------+
| Name | Type | Endpoints |
+-----------+-----------+------------------------------------------------------------------------+
| nova | compute | RegionOne |
| | | internal: http://10.20.9.13:8774/v2/6effb77cf0ba48a7a65a2c2235bbb726 |
| | | RegionOne |
| | | public: http://10.20.9.13:8774/v2/6effb77cf0ba48a7a65a2c2235bbb726 |
| | | RegionOne |
| | | admin: http://10.20.9.13:8774/v2/6effb77cf0ba48a7a65a2c2235bbb726 |
| | | |
| keystone | identity | RegionOne |
| | | public: http://10.20.9.13:5000/v3/ |
| | | RegionOne |
| | | admin: http://10.20.9.13:35357/v3/ |
| | | RegionOne |
| | | internal: http://10.20.9.13:5000/v3/ |
| | | |
| placement | placement | RegionOne |
| | | public: http://10.20.9.13:8778 |
| | | RegionOne |
| | | internal: http://10.20.9.13:8778 |
| | | RegionOne |
| | | admin: http://10.20.9.13:8778 |
| | | |
| glance | image | RegionOne |
| | | admin: http://10.20.9.13:9292 |
| | | RegionOne |
| | | public: http://10.20.9.13:9292 |
| | | RegionOne |
| | | internal: http://10.20.9.13:9292 |
| | | |
+-----------+-----------+------------------------------------------------------------------------+
[root@Controller-Node ~]#二、安装并配置组件
1.安装软件包：
$ yum install openstack-nova-api openstack-nova-cert \
openstack-nova-conductor openstack-nova-console \
openstack-nova-novncproxy openstack-nova-scheduler \
python-novaclient openstack-nova-placement-api2.编辑/etc/nova/nova.conf文件并完成下面的操作：
1.> 在 [DEFAULT] 选项中，开启计算和元数据API
[DEFAULT]
# ...
enabled_apis=osapi_compute,metadata2.> 在 [DEFAULT] 选项中，配置消息队列连接。
[DEFAULT]
# ...
transport_url=rabbit://openstack:openstack@10.20.9.133.> 在[DEFAULT]选项中，配置my_ip
[DEFAULT]
# ...
my_ip=10.20.9.134.> 在 [DEFAULT] 选项中开启对网络服务的支持
[DEFAULT]
# ...
use_neutron=True
firewall_driver=nova.virt.firewall.NoopFirewallDriver5.> 在 [api_database] 和 [database] 选项中，配置数据库连接
[api_database]
# ...
connection = mysql://nova:nova@10.20.9.13/nova_api
[database]
# ...
connection = mysql://nova:nova@10.20.9.13/nova6.> 在 [api] 和 [keystone_authtoken] 选项中配置如下
[api]
# ...
auth_strategy=keystone
[keystone_authtoken]
# ...
auth_uri=http://10.20.9.13:5000
auth_url=http://10.20.9.13:35357
memcached_servers=10.20.9.13:11211
auth_type=password
project_domain_name=default
user_domain_name=default
project_name=service
username=nova
password=nova7.> 在 [vnc] 选项中，配置VNC代理
[vnc]
# ...
enabled=true
vncserver_listen=$my_ip
vncserver_proxyclient_address=$my_ip8.> 在 [glance] 选项中，配置镜像服务API的位置。
[glance]
# ...
api_servers=http://10.20.9.13:92929.> 在 [oslo_concurrency] 选项中，配置锁定路径
[oslo_concurrency]
# ...
lock_path=/var/lib/nova/tmp10.> 在 [placement] 选项中配置
[placement]
# ...
os_region_name=RegionOne
project_domain_name=Default
project_name=service
auth_type=password
user_domain_name=Default
auth_url=http://10.20.9.13:35357/v3
username=placement
password=nova3.设置apache，在文件中追加如下内容,并重新启动服务
vim /etc/httpd/conf.d/00-nova-placement-api.conf
<Directory /usr/bin>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
<IfVersion < 2.4>
Order allow,deny
Allow from all
</IfVersion>
</Directory>[root@Controller-Node ~]# systemctl restart httpd4.填充nova-api数据库：
[root@Controller-Node ~]# su -s /bin/sh -c "nova-manage api_db sync" nova5.注册cell0数据库：
[root@Controller-Node ~]# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova6.创建cell1单元格：
[root@Controller-Node ~]# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
c57ab09d-7da7-4abb-af21-448b62548b43
[root@Controller-Node ~]#7.填充nova数据库：
[root@Controller-Node ~]# su -s /bin/sh -c "nova-manage db sync" nova8.验证nova cell0和cell1是否正确注册：
[root@Controller-Node ~]# nova-manage cell_v2 list_cells
+-------+--------------------------------------+
| Name | UUID |
+-------+--------------------------------------+
| cell0 | 00000000-0000-0000-0000-000000000000 |
| cell1 | c57ab09d-7da7-4abb-af21-448b62548b43 |
+-------+--------------------------------------+9.完成安装,开启计算服务并设置开机启动；
$systemctl enable openstack-nova-api.service \
openstack-nova-consoleauth.service \
openstack-nova-scheduler.service \
openstack-nova-conductor.service \
openstack-nova-novncproxy.service
$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.service10.获取admin权限，并验证每个服务组件都是否成功运行
[root@Controller-Node ~]# source admin-openrc.sh
[root@Controller-Node ~]#
[root@Controller-Node ~]# openstack host list
+-----------------+-------------+----------+
| Host Name | Service | Zone |
+-----------------+-------------+----------+
| Controller-Node | consoleauth | internal |
| Controller-Node | conductor | internal |
| Controller-Node | scheduler | internal |
+-----------------+-------------+----------+
[root@Controller-Node ~]# nova service-list
+----+------------------+-----------------+----------+---------+-------+----------------------------+-----------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+----+------------------+-----------------+----------+---------+-------+----------------------------+-----------------+
| 1 | nova-consoleauth | Controller-Node | internal | enabled | up | 2018-10-10T09:06:01.000000 | - |
| 2 | nova-conductor | Controller-Node | internal | enabled | up | 2018-10-10T09:06:02.000000 | - |
| 3 | nova-scheduler | Controller-Node | internal | enabled | up | 2018-10-10T09:06:01.000000 | - |
+----+------------------+-----------------+----------+---------+-------+----------------------------+-----------------+
[root@Controller-Node ~]# openstack endpoint list
+----------------------------------+-----------+--------------+--------------+---------+-----------+-----------------------------------------+
| ID | Region | Service Name | Service Type | Enabled | Interface | URL |
+----------------------------------+-----------+--------------+--------------+---------+-----------+-----------------------------------------+
| 168ce73846e84b51aceb1d9fc043786a | RegionOne | nova | compute | True | internal | http://10.20.9.13:8774/v2/%(tenant_id)s |
| 19df26f63e994c8ba0c81fa263dc60cd | RegionOne | keystone | identity | True | public | http://10.20.9.13:5000/v3/ |
| 3ca232fd709f4e95b5a74ea074c5d341 | RegionOne | glance | image | True | admin | http://10.20.9.13:9292 |
| 47a41ccb37d94396bf1878b0b4bf4910 | RegionOne | glance | image | True | public | http://10.20.9.13:9292 |
| 5c1683647fe64bd19ddeeca2f44b4d29 | RegionOne | keystone | identity | True | admin | http://10.20.9.13:35357/v3/ |
| 67a2fddef3b64789a51d4f74183f3715 | RegionOne | nova | compute | True | public | http://10.20.9.13:8774/v2/%(tenant_id)s |
| 7d6ca6665b1b46e195aef4b0e264daf6 | RegionOne | keystone | identity | True | internal | http://10.20.9.13:5000/v3/ |
| c675270a56b545af97408788c63b89fd | RegionOne | glance | image | True | internal | http://10.20.9.13:9292 |
| d04b4f1de2ff4e79ad97b0a18bee46da | RegionOne | nova | compute | True | admin | http://10.20.9.13:8774/v2/%(tenant_id)s |
+----------------------------------+-----------+--------------+--------------+---------+-----------+-----------------------------------------+
[root@Controller-Node ~]#三、在计算节点安装配置nova服务(10.20.9.14主机)
1.安装nova-compute软件包
[root@Compute-Node ~]# yum install openstack-nova-compute2. 编辑/etc/nova/nova.conf文件.
1.> 在[DEFAULT]选项中，开启计算和元数据API
[DEFAULT]
#...
enabled_apis=osapi_compute,metadata2.> 在[DEFAULT]选项中，配置消息队列权限
[DEFAULT]
#...
transport_url=rabbit://openstack:openstack@10.20.9.133.> 在[DEFAULT]选项中，配置my_ip参数,这个是本机IP地址
[DEFAULT]
#...
my_ip=10.20.9.144.> 在 [DEFAULT] 选项中，开启网络服务支持
[DEFAULT]
#...
use_neutron=True
firewall_driver=nova.virt.firewall.NoopFirewallDriver5.> 在 [api] 和 [keystone_authtoken] 选项中，配置认证服务权限
[api]
#...
auth_strategy=keystone
[keystone_authtoken]
#...
auth_uri=http://10.20.9.13:5000
auth_url=http://10.20.9.13:35357
memcached_servers=10.20.9.13:11211
auth_type=password
project_domain_name=default
user_domain_name=default
project_name=service
username=nova
password=nova6.> 在 [vnc] 选项中，开启并配置远程控制台权限
[vnc]
#...
enabled=True
vncserver_listen=0.0.0.0
vncserver_proxyclient_address=$my_ip
novncproxy_base_url=http://10.20.9.13:6080/vnc_auto.html7.> 在 [glance] 选项中，配置镜像服务API地址
[glance]
#...
api_servers=http://10.20.9.13:92928.> 在 [oslo_concurrency] 选项，配置锁定路径
[oslo_concurrency]
#...
lock_path=/var/lib/nova/tmp9.> 在 [placement] 段添加如下参数.
[placement]
#...
os_region_name=RegionOne
project_domain_name=Default
project_name=service
auth_type=password
user_domain_name=Default
auth_url=http://10.20.9.13:35357/v3
username=placement
password=nova3. 检查是否需要硬件加速
[root@Compute-Node ~]# egrep -c '(vmx|svm)' /proc/cpuinfo
0
[root@Compute-Node ~]#如果为0则需要修改 #vi /etc/nova/nova.conf文件，[libvirt]段添加如下内容.
[libvirt]
# ...
virt_type=qemu4.启动服务,并查看服务状态
# systemctl enable libvirtd.service openstack-nova-compute.service
# systemctl start libvirtd.service openstack-nova-compute.service
# systemctl status libvirtd.service openstack-nova-compute.service三、验证操作，在主控节点(10.20.9.13)上面操作.
1.获取admin权限
[root@Controller-Node ~]# source admin-openrc.sh2.将计算节点添加到单元数据库,在控制节点上进行操作.
[root@Controller-Node ~]# su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova
Found 2 cell mappings.
Skipping cell0 since it does not contain hosts.
Getting compute nodes from cell 'cell1': c57ab09d-7da7-4abb-af21-448b62548b43
Found 1 computes in cell: c57ab09d-7da7-4abb-af21-448b62548b43
Checking host mapping for compute host 'Compute-Node': 911f9117-ec3f-43fd-930e-b8571f04400f
Creating host mapping for compute host 'Compute-Node': 911f9117-ec3f-43fd-930e-b8571f04400f
[root@Controller-Node ~]#3.查看 compute 节点
[root@Controller-Node ~]# openstack compute service list
+----+------------------+-----------------+----------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+------------------+-----------------+----------+---------+-------+----------------------------+
| 1 | nova-consoleauth | Controller-Node | internal | enabled | up | 2018-10-11T02:59:37.000000 |
| 2 | nova-conductor | Controller-Node | internal | enabled | up | 2018-10-11T02:59:35.000000 |
| 3 | nova-scheduler | Controller-Node | internal | enabled | up | 2018-10-11T02:59:31.000000 |
| 6 | nova-compute | Compute-Node | nova | enabled | up | 2018-10-11T02:59:38.000000 |
+----+------------------+-----------------+----------+---------+-------+----------------------------+
[root@Controller-Node ~]#4.查看catalog
[root@Controller-Node ~]# openstack catalog list
+-----------+-----------+------------------------------------------------------------------------+
| Name | Type | Endpoints |
+-----------+-----------+------------------------------------------------------------------------+
| | | |
| nova | compute | RegionOne |
| | | internal: http://10.20.9.13:8774/v2/6effb77cf0ba48a7a65a2c2235bbb726 |
| | | RegionOne |
| | | public: http://10.20.9.13:8774/v2/6effb77cf0ba48a7a65a2c2235bbb726 |
| | | RegionOne |
| | | admin: http://10.20.9.13:8774/v2/6effb77cf0ba48a7a65a2c2235bbb726 |
| | | |
| keystone | identity | RegionOne |
| | | public: http://10.20.9.13:5000/v3/ |
| | | RegionOne |
| | | admin: http://10.20.9.13:35357/v3/ |
| | | RegionOne |
| | | internal: http://10.20.9.13:5000/v3/ |
| | | |
| placement | placement | RegionOne |
| | | admin: http://10.20.9.13:8778 |
| | | RegionOne |
| | | internal: http://10.20.9.13:8778 |
| | | RegionOne |
| | | public: http://10.20.9.13:8778 |
| | | |
| glance | image | RegionOne |
| | | admin: http://10.20.9.13:9292 |
| | | RegionOne |
| | | public: http://10.20.9.13:9292 |
| | | RegionOne |
| | | internal: http://10.20.9.13:9292 |
| | | |
+-----------+-----------+------------------------------------------------------------------------+
[root@Controller-Node ~]#5.列出Image服务中的图像以验证与Image服务的连接性：
[root@Controller-Node ~]# openstack image list
+--------------------------------------+--------+--------+
| ID | Name | Status |
+--------------------------------------+--------+--------+
| f7041b87-bd78-475c-a877-919543886dc0 | cirros | active |
+--------------------------------------+--------+--------+
[root@Controller-Node ~]#6.检查单元格和放置API正在成功工作：
[root@Controller-Node ~]# nova-status upgrade check
+---------------------------+
| Upgrade Check Results |
+---------------------------+
| Check: Cells v2 |
| Result: Success |
| Details: None |
+---------------------------+
| Check: Placement API |
| Result: Success |
| Details: None |
+---------------------------+
| Check: Resource Providers |
| Result: Success |
| Details: None |
+---------------------------+
[root@Controller-Node ~]#至此，主控和计算节点的nova服务都已经部署完成，两者的互通都没问题..
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