OpenStack 安装：nova服务

上一篇介绍了glance，并且成功创建了一个镜像，这一篇介绍Nova。

首先创建Nova用户，需要记得先source环境变量，然后创建Nova用户，并设置密码为nova

[root@linux-node1 ~]# source admin-openstack.sh

[root@linux-node1 ~]# openstack user create --domain default --password-prompt nova

User Password:

Repeat User Password:

+---------------------+----------------------------------+

| Field               | Value                            |

+---------------------+----------------------------------+

| domain_id           | default                          |

| enabled             | True                             |

| id                  | 34c7be4d612a45b4830304af29eb010e |

| name                | nova                             |

| options             | {}                               |

| password_expires_at | None                             |

+---------------------+----------------------------------+

给Nova用户添加admin角色

[root@linux-node1 ~]# openstack role add --project service --user nova admin

[root@linux-node1 ~]#

创建Nova服务实例

openstack service create --name nova \

  --description "OpenStack Compute" compute

+-------------+----------------------------------+

| Field       | Value                            |

+-------------+----------------------------------+

| description | OpenStack Compute                |

| enabled     | True                             |

| id          | bf254b3182e04256897e925632f171d0 |

| name        | nova                             |

| type        | compute                          |

+-------------+----------------------------------+

创建NovaAPI服务端点

openstack endpoint create --region RegionOne \

  compute public http://192.168.56.11:8774/v2.1

+--------------+----------------------------------+

| Field        | Value                            |

+--------------+----------------------------------+

| enabled      | True                             |

| id           | 06541267fb014c7f9b0be6748366fdba |

| interface    | public                           |

| region       | RegionOne                        |

| region_id    | RegionOne                        |

| service_id   | bf254b3182e04256897e925632f171d0 |

| service_name | nova                             |

| service_type | compute                          |

| url          | http://192.168.56.11:8774/v2.1   |

+--------------+----------------------------------+openstack endpoint create --region RegionOne \

  compute internal http://192.168.56.11:8774/v2.1

+--------------+----------------------------------+

| Field        | Value                            |

+--------------+----------------------------------+

| enabled      | True                             |

| id           | d9da327e665645fb9766dea107e13bf1 |

| interface    | internal                         |

| region       | RegionOne                        |

| region_id    | RegionOne                        |

| service_id   | bf254b3182e04256897e925632f171d0 |

| service_name | nova                             |

| service_type | compute                          |

| url          | http://192.168.56.11:8774/v2.1   |

+--------------+----------------------------------+openstack endpoint create --region RegionOne \

  compute admin http://192.168.56.11:8774/v2.1

+--------------+----------------------------------+

| Field        | Value                            |

+--------------+----------------------------------+

| enabled      | True                             |

| id           | 805cd45ded6841d0acd3335ccfdc29ef |

| interface    | admin                            |

| region       | RegionOne                        |

| region_id    | RegionOne                        |

| service_id   | bf254b3182e04256897e925632f171d0 |

| service_name | nova                             |

| service_type | compute                          |

| url          | http://192.168.56.11:8774/v2.1   |

+--------------+----------------------------------+

创建placement服务，并将密码设置为placement

[root@linux-node1 ~]# openstack user create --domain default --password-prompt placement

User Password:

Repeat User Password:

+---------------------+----------------------------------+

| Field               | Value                            |

+---------------------+----------------------------------+

| domain_id           | default                          |

| enabled             | True                             |

| id                  | 27080769990347169fdc6bf81fe9ebd1 |

| name                | placement                        |

| options             | {}                               |

| password_expires_at | None                             |

+---------------------+----------------------------------+

给placement用户添加admin角色

[root@linux-node1 ~]# openstack role add --project service --user placement admin

在服务目录中创建placement API实例

[root@linux-node1 ~]# openstack service create --name placement --description "Placement API" placement

+-------------+----------------------------------+

| Field       | Value                            |

+-------------+----------------------------------+

| description | Placement API                    |

| enabled     | True                             |

| id          | 344d25c79f1b412cb0c5958bd8242b2c |

| name        | placement                        |

| type        | placement                        |

+-------------+----------------------------------+

创建placement API 服务端点

[root@linux-node1 ~]# openstack endpoint create --region RegionOne placement public http://192.168.56.11:8778

+--------------+----------------------------------+

| Field        | Value                            |

+--------------+----------------------------------+

| enabled      | True                             |

| id           | a70af939c7ed4d899da5675ade2b3a33 |

| interface    | public                           |

| region       | RegionOne                        |

| region_id    | RegionOne                        |

| service_id   | 344d25c79f1b412cb0c5958bd8242b2c |

| service_name | placement                        |

| service_type | placement                        |

| url          | http://192.168.56.11:8778        |

+--------------+----------------------------------+

[root@linux-node1 ~]# openstack endpoint create --region RegionOne placement internal http://192.168.56.11:877

+--------------+----------------------------------+

| Field        | Value                            |

+--------------+----------------------------------+

| enabled      | True                             |

| id           | cfb1efaae8bd4022b4d0b8aebb286935 |

| interface    | internal                         |

| region       | RegionOne                        |

| region_id    | RegionOne                        |

| service_id   | 344d25c79f1b412cb0c5958bd8242b2c |

| service_name | placement                        |

| service_type | placement                        |

| url          | http://192.168.56.11:8778        |

+--------------+----------------------------------+

[root@linux-node1 ~]# openstack endpoint create --region RegionOne placement admin http://192.168.56.11:8778

+--------------+----------------------------------+

| Field        | Value                            |

+--------------+----------------------------------+

| enabled      | True                             |

| id           | 48718fc25ef344b2a20622d091387f9c |

| interface    | admin                            |

| region       | RegionOne                        |

| region_id    | RegionOne                        |

| service_id   | 344d25c79f1b412cb0c5958bd8242b2c |

| service_name | placement                        |

| service_type | placement                        |

| url          | http://192.168.56.11:8778        |

+--------------+----------------------------------+

验证Nova与placement服务是否创建

[root@linux-node1 ~]# openstack endpoint list

+----------------------------------+-----------+--------------+--------------+---------+-----------+--------------------------------+

| ID                               | Region    | Service Name | Service Type | Enabled | Interface | URL                            |

+----------------------------------+-----------+--------------+--------------+---------+-----------+--------------------------------+

| 06541267fb014c7f9b0be6748366fdba | RegionOne | nova         | compute      | True    | public    | http://192.168.56.11:8774/v2.1 |

| 16964c23761c428b909e9a8617d8146e | RegionOne | keystone     | identity     | True    | internal  | http://192.168.56.11:5000/v3/  |

| 223775040aaf460da4f275ebbcd01ae1 | RegionOne | glance       | image        | True    | admin     | http://192.168.56.11:9292      |

| 36fb4b5b955d471783a982ea455cf58d | RegionOne | keystone     | identity     | True    | public    | http://192.168.56.11:5000/v3/  |

| 47e8d9659f70422487cf600405f518bf | RegionOne | glance       | image        | True    | public    | http://192.168.56.11:9292      |

| 48718fc25ef344b2a20622d091387f9c | RegionOne | placement    | placement    | True    | admin     | http://192.168.56.11:8778      |

| 62766176a40f43bbbb40d4b986b4400e | RegionOne | keystone     | identity     | True    | admin     | http://192.168.56.11:35357/v3/ |

| 805cd45ded6841d0acd3335ccfdc29ef | RegionOne | nova         | compute      | True    | admin     | http://192.168.56.11:8774/v2.1 |

| 859936e9632642d58517d9ac6a2c3176 | RegionOne | glance       | image        | True    | internal  | http://192.168.56.11:9292      |

| a70af939c7ed4d899da5675ade2b3a33 | RegionOne | placement    | placement    | True    | public    | http://192.168.56.11:8778      |

| cfb1efaae8bd4022b4d0b8aebb286935 | RegionOne | placement    | placement    | True    | internal  | http://192.168.56.11:8778      |

| d9da327e665645fb9766dea107e13bf1 | RegionOne | nova         | compute      | True    | internal  | http://192.168.56.11:8774/v2.1 |

+----------------------------------+-----------+--------------+--------------+---------+-----------+--------------------------------+

编辑/etc/nova/nova.conf，并做如下修改

[DEFAULT]

enabled_apis=osapi_compute,metadata 
transport_url=rabbit://openstack:openstack@192.168.56.11 
my_ip = 192.168.56.11

use_neutron=true

firewall_driver=nova.virt.firewall.NoopFirewallDriver

[api]

auth_strategy=keystone

[api_database]

connection=mysql+pymysql://nova:nova@192.168.56.11/nova_api

[database]

connection=mysql+pymysql://nova:nova@192.168.56.11/nova

[glance]

api_servers=192.168.56.11:

[keystone_authtoken]

auth_uri = http://192.168.56.11:5000

auth_url = http://192.168.56.11:35357 
memcached_servers = 192.168.56.11: 
auth_type = password 
project_domain_name = default 
user_domain_name = default 
project_name = service 
username = nova 
password = nova

[placement]

os_region_name = RegionOne 
project_domain_name = Default 
project_name = service 
auth_type = password 
user_domain_name = Default 
auth_url = http://192.168.56.11:35357/v3 
username = placement 
password = placement

[vnc]

enabled=true

vncserver_listen=192.168.56.11

vncserver_proxyclient_address=192.168.56.11

[oslo_concurrency]

lock_path=/var/lib/nova/tmp

因为一个packaging bug，必须通过在/etc/httpd/conf.d/00-nova-placement-api.conf添加如下配置来是能placement API的接入：

<Directory /usr/bin>

   <IfVersion >= 2.4>

      Require all granted

   </IfVersion>

   <IfVersion < 2.4>

      Order allow,deny

      Allow from all

   </IfVersion>

</Directory>

重启httpd服务

# systemctl restart httpd

同步nova-api数据库：

[root@linux-node1 ~]# su -s /bin/sh -c "nova-manage api_db sync" nova

[root@linux-node1 ~]#

登记cell0数据库

[root@linux-node1 ~]# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova

[root@linux-node1 ~]#

创建cell1

[root@linux-node1 ~]# nova-manage cell_v2 list_cells

+-------+--------------------------------------+---------------------------------------+----------------------------------------------------+

|  Name |                 UUID                 |             Transport URL             |                Database Connection                 |

+-------+--------------------------------------+---------------------------------------+----------------------------------------------------+

| cell0 | ---- |                 none:/                | mysql+pymysql://nova:****@192.168.56.11/nova_cell0 |

| cell1 | 9f317433-ab20---a9faa94d5825 | rabbit://openstack:****@192.168.56.11 |    mysql+pymysql://nova:****@192.168.56.11/nova    |

+-------+--------------------------------------+---------------------------------------+----------------------------------------------------+

[root@linux-node1 ~]# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova

9f317433-ab20---a9faa94d5825

[root@linux-node1 ~]#

同步Nova数据库

[root@linux-node1 ~]# su -s /bin/sh -c "nova-manage db sync" nova

/usr/lib/python2./site-packages/pymysql/cursors.py:: Warning: (,

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./site-packages/pymysql/cursors.py:: Warning: (,

u'Duplicate index `uniq_instances0uuid`. This is deprecated and will be

disallowed in a future release.')

result = self._query(query)

验证Nova cell0 和cell1是否登记正确

[root@linux-node1 ~]# nova-manage cell_v2 list_cells

+-------+--------------------------------------+---------------------------------------+----------------------------------------------------+

|  Name |                 UUID                 |             Transport URL             |                Database Connection                 |

+-------+--------------------------------------+---------------------------------------+----------------------------------------------------+

| cell0 | ---- |                 none:/                | mysql+pymysql://nova:****@192.168.56.11/nova_cell0 |

| cell1 | 9f317433-ab20---a9faa94d5825 | rabbit://openstack:****@192.168.56.11 |    mysql+pymysql://nova:****@192.168.56.11/nova    |

+-------+--------------------------------------+---------------------------------------+----------------------------------------------------+

启动Nova服务并设置为开机启动

systemctl enable openstack-nova-api.service \

  openstack-nova-consoleauth.service openstack-nova-scheduler.service \

  openstack-nova-conductor.service openstack-nova-novncproxy.service

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-

consoleauth.service to /usr/lib/systemd/system/openstack-nova-

consoleauth.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.

systemctl start openstack-nova-api.service \

  openstack-nova-consoleauth.service openstack-nova-scheduler.service \

  openstack-nova-conductor.service openstack-nova-novncproxy.service

在计算节点安装Nova

编辑/etc/nova/nova.conf并作出如下修改

[DEFAULT]

use_neutron=true 
firewall_driver=nova.virt.firewall.NoopFirewallDriver 
enabled_apis=osapi_compute,metadata 
transport_url=rabbit://openstack:openstack@192.168.56.11

[api]

auth_strategy=keystone

[glance]

api_servers=192.168.56.11: 

[keystone_authtoken]

auth_uri = http://192.168.56.11:5000 
auth_url = http://192.168.56.11:35357 
memcached_servers = 192.168.56.11: 
auth_type = password 
project_domain_name = default 
user_domain_name = default 
project_name = service 
username = nova 
password = nova

[oslo_concurrency]

lock_path=/var/lib/nova/tmp

[placement]

os_region_name = RegionOne 
project_domain_name = Default 
project_name = service 
auth_type = password 
user_domain_name = Default 
auth_url = http://192.168.56.11:35357/v3 
username = placement 
password = placement

[vnc]

enabled=true 
vncserver_listen=192.168.56.12 
vncserver_proxyclient_address=192.168.56.12 
novncproxy_base_url=http://192.168.56.11:6080/vnc_auto.html 

[libvirt] 
# 暂时设置为qemu,生产应为
kvm virt_type = qemu

启动Nova服务并设置为开机启动

[root@linux-node2 nova]# systemctl enable libvirtd.service openstack-nova-compute.service

Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-

compute.service to /usr/lib/systemd/system/openstack-nova-compute.service.

[root@linux-node2 nova]# systemctl start libvirtd.service openstack-nova-compute.service

确认计算节点已经在数据库：

[root@linux-node1 ~]# source admin-openstack.sh

[root@linux-node1 ~]# openstack compute service list --service nova-compute

+----+--------------+-------------------------+------+---------+-------+----------------------------+

| ID | Binary       | Host                    | Zone | Status  | State | Updated At                 |

+----+--------------+-------------------------+------+---------+-------+----------------------------+

|   | nova-compute | linux-node2.example.com | nova | enabled | up    | --12T04::19.000000 |

+----+--------------+-------------------------+------+---------+-------+----------------------------+

发现计算节点

[root@linux-node1 ~]# su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova

Found  cell mappings.

Skipping cell0 since it does not contain hosts.

Getting compute nodes from cell 'cell1': 9f317433-ab20---a9faa94d5825

Found  unmapped computes in cell: 9f317433-ab20---a9faa94d5825

Checking host mapping for compute host 'linux-node2.example.com': a9a6dc8c-41f3-4b44-ac5c-2d8b081bc77e

Creating host mapping for compute host 'linux-node2.example.com': a9a6dc8c-41f3-4b44-ac5c-2d8b081bc77e

至此，Nova服务配置完毕

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