OpenStack L版官网配置转载(四)

添加 Compute 服务

控制节点:

完成下面的步骤以创建数据库:

用数据库连接客户端以 root 用户连接到数据库服务器:

$ mysql -u root -p

创建 nova数据库:

CREATE DATABASE nova;

对nova数据库授予恰当的访问权限:

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

使用合适的密码替换NOVA_DBPASS。

退出数据库客户端。


获得 admin 凭证来获取只有管理员能执行命令的访问权限:

$ source admin-openrc.sh

要创建服务证书,完成这些步骤:

创建 nova 用户:

$ openstack user create --domain default --password-prompt nova
User Password:
Repeat User Password:
+-----------+----------------------------------+
| Field     | Value                            |
+-----------+----------------------------------+
| domain_id | default                          |
| enabled   | True                             |
| id        | 8c46e4760902464b889293a74a0c90a8 |
| name      | nova                             |
+-----------+----------------------------------+

添加admin 角色到 nova 用户:

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

创建nova 服务实体:

$ openstack service create --name nova \
  --description "OpenStack Compute" compute
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Compute                |
| enabled     | True                             |
| id          | 060d59eac51b4594815603d75a00aba2 |
| name        | nova                             |
| type        | compute                          |
+-------------+----------------------------------+

创建计算服务API端点:

$ openstack endpoint create --region RegionOne \
  compute public http://controller:8774/v2/%\(tenant_id\)s
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| enabled      | True                                    |
| id           | 3c1caa473bfe4390a11e7177894bcc7b        |
| interface    | public                                  |
| region       | RegionOne                               |
| region_id    | RegionOne                               |
| service_id   | e702f6f497ed42e6a8ae3ba2e5871c78        |
| service_name | nova                                    |
| service_type | compute                                 |
| url          | http://controller:8774/v2/%(tenant_id)s |
+--------------+-----------------------------------------+

$ openstack endpoint create --region RegionOne \
  compute internal http://controller:8774/v2/%\(tenant_id\)s
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| enabled      | True                                    |
| id           | e3c918de680746a586eac1f2d9bc10ab        |
| interface    | internal                                |
| region       | RegionOne                               |
| region_id    | RegionOne                               |
| service_id   | e702f6f497ed42e6a8ae3ba2e5871c78        |
| service_name | nova                                    |
| service_type | compute                                 |
| url          | http://controller:8774/v2/%(tenant_id)s |
+--------------+-----------------------------------------+

$ openstack endpoint create --region RegionOne \
  compute admin http://controller:8774/v2/%\(tenant_id\)s
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| enabled      | True                                    |
| id           | 38f7af91666a47cfb97b4dc790b94424        |
| interface    | admin                                   |
| region       | RegionOne                               |
| region_id    | RegionOne                               |
| service_id   | e702f6f497ed42e6a8ae3ba2e5871c78        |
| service_name | nova                                    |
| service_type | compute                                 |
| url          | http://controller:8774/v2/%(tenant_id)s |
+--------------+-----------------------------------------+

安全并配置组件

控制节点:

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

编辑/etc/nova/nova.conf文件并完成下面的操作:

在 [database] 部分,配置数据库访问:

[database]
...
connection = mysql://nova:NOVA_DBPASS@controller/nova

使用你为计算数据库选择的密码替换NOVA_DBPASS 。


在 [DEFAULT] 和 [oslo_messaging_rabbit]部分,配置 “RabbitMQ” 消息队列访问:

[DEFAULT]
...
rpc_backend = rabbit

[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS

用你在 “RabbitMQ” 中为 “openstack” 用户选择的密码替换 “RABBIT_PASS”。


在 “[DEFAULT]” 和 “[keystone_authtoken]” 部分,配置认证服务访问:

[DEFAULT]
...
auth_strategy = keystone

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = nova
password = NOVA_PASS

使用你在身份认证服务中选择的nova 用户密码替换NOVA_PASS。


在 [DEFAULT] 部分,配置 my_ip 来使用控制节点的管理接口的IP 地址。

[DEFAULT]
...
my_ip = 10.0.0.11

在 [DEFAULT]部分,启用网络服务支持:

[DEFAULT]
...
network_api_class = nova.network.neutronv2.api.API
security_group_api = neutron
linuxnet_interface_driver = nova.network.linux_net.NeutronLinuxBridgeInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver

在[vnc]部分,配置VNC代理使用控制节点的管理IP地址 :

[vnc]
...
vncserver_listen = $my_ip
vncserver_proxyclient_address = $my_ip

在[glance]部分,配置镜像服务的位置:

[glance]
...
host = controller

在 [oslo_concurrency] 部分,配置锁路径:

[oslo_concurrency]
...
lock_path = /var/lib/nova/tmp

在[DEFAULT]部分,禁用EC2 API:

[DEFAULT]
...
enabled_apis=osapi_compute,metadata

(可选的)为帮助排错,在 “[DEFAULT]”部分启用详细日志。

[DEFAULT]
...
verbose = True

同步Compute 数据库:

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

启动 Compute 服务并将其设置为随系统启动:

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

安装和配置计算节点

计算节点:

安装软件包:

yum install openstack-nova-compute sysfsutils

编辑/etc/nova/nova.conf文件并完成下面的操作:

在[DEFAULT] 和 [oslo_messaging_rabbit]部分,配置RabbitMQ消息队列:

[DEFAULT]
...
rpc_backend = rabbit

[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS

用你在 “RabbitMQ” 中为 “openstack” 用户选择的密码替换 “RABBIT_PASS”。


在 “[DEFAULT]” 和 “[keystone_authtoken]” 部分,配置认证服务访问:

[DEFAULT]
...
auth_strategy = keystone

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = nova
password = NOVA_PASS

使用你在身份认证服务中选择的nova用户密码替换NOVA_PASS。


在 [DEFAULT] 部分,配置 my_ip 选项:

[DEFAULT]
...
my_ip = MANAGEMENT_INTERFACE_IP_ADDRESS
将其中的 MANAGEMENT_INTERFACE_IP_ADDRESS 替换为计算节点上的管理网络接口的IP 地址,例如 :ref:`example architecture <overview-example-architectures>`中所示的第一个节点 10.0.0.31 。


在 [DEFAULT]部分,启用网络服务支持:

[DEFAULT]
...
network_api_class = nova.network.neutronv2.api.API
security_group_api = neutron
linuxnet_interface_driver = nova.network.linux_net.NeutronLinuxBridgeInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver

在[vnc]部分,启用并配置远程控制台访问:

[vnc]
...
enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = $my_ip
novncproxy_base_url = http://controller:6080/vnc_auto.html
服务器组件监听所有的 IP 地址,而代理组件仅仅监听计算节点管理网络接口的 IP 地址。基本的 URL 指示您可以使用 web 浏览器访问位于该计算节点上实例的远程控制台的位置。


在[glance]部分,配置镜像服务的位置:

[glance]
...
host = controller

在 [oslo_concurrency] 部分,配置锁路径:

[oslo_concurrency]
...
lock_path = /var/lib/nova/tmp

(可选的)为帮助排错,在 “[DEFAULT]”部分启用详细日志。

[DEFAULT]
...
verbose = True

完成安装

计算节点:

确定您的计算节点是否支持虚拟机的硬件加速。

$ egrep -c '(vmx|svm)' /proc/cpuinfo

如果这个命令返回 1或者更大的值,说明您的计算节点支持硬件加速,一般不需要进行额外的配置。
如果这个命令返回0,你的计算节点不支持硬件加速,你必须配置 libvirt 使用QEMU而不是使用KVM。

在/etc/nova/nova.conf 文件像下面这样编辑 [libvirt]部分:

[libvirt]
...
virt_type = qemu

启动计算服务及其依赖,并将其配置为随系统自动启动:

# systemctl enable libvirtd.service openstack-nova-compute.service
# systemctl start libvirtd.service openstack-nova-compute.service

验证操作:

控制节点:

获得 admin 凭证来获取只有管理员能执行命令的访问权限:

$ source admin-openrc.sh

列出服务组件,以验证是否成功启动并注册了每个进程:

$ nova service-list
+----+------------------+------------+----------+---------+-------+--------------+-----------------+
| Id | Binary           | Host       | Zone     | Status  | State | Updated_at   | Disabled Reason |
+----+------------------+------------+----------+---------+-------+--------------+-----------------+
| 1  | nova-conductor   | controller | internal | enabled | up    | 2014-09-16.. | -               |
| 2  | nova-consoleauth | controller | internal | enabled | up    | 2014-09-16.. | -               |
| 3  | nova-scheduler   | controller | internal | enabled | up    | 2014-09-16.. | -               |
| 4  | nova-cert        | controller | internal | enabled | up    | 2014-09-16.. | -               |
| 5  | nova-compute     | compute1   | nova     | enabled | up    | 2014-09-16.. | -               |
+----+------------------+------------+----------+---------+-------+--------------+-----------------+

列出身份认证服务中的 API 端点来验证身份认证服务的连通性:

$ nova endpoints
+-----------+------------------------------------------------------------+
| nova      | Value                                                      |
+-----------+------------------------------------------------------------+
| id        | 1fb997666b79463fb68db4ccfe4e6a71                           |
| interface | public                                                     |
| region    | RegionOne                                                  |
| region_id | RegionOne                                                  |
| url       | http://controller:8774/v2/ae7a98326b9c455588edd2656d723b9d |
+-----------+------------------------------------------------------------+
+-----------+------------------------------------------------------------+
| nova      | Value                                                      |
+-----------+------------------------------------------------------------+
| id        | bac365db1ff34f08a31d4ae98b056924                           |
| interface | admin                                                      |
| region    | RegionOne                                                  |
| region_id | RegionOne                                                  |
| url       | http://controller:8774/v2/ae7a98326b9c455588edd2656d723b9d |
+-----------+------------------------------------------------------------+
+-----------+------------------------------------------------------------+
| nova      | Value                                                      |
+-----------+------------------------------------------------------------+
| id        | e37186d38b8e4b81a54de34e73b43f34                           |
| interface | internal                                                   |
| region    | RegionOne                                                  |
| region_id | RegionOne                                                  |
| url       | http://controller:8774/v2/ae7a98326b9c455588edd2656d723b9d |
+-----------+------------------------------------------------------------+

+-----------+----------------------------------+
| glance    | Value                            |
+-----------+----------------------------------+
| id        | 41ad39f6c6444b7d8fd8318c18ae0043 |
| interface | admin                            |
| region    | RegionOne                        |
| region_id | RegionOne                        |
| url       | http://controller:9292           |
+-----------+----------------------------------+
+-----------+----------------------------------+
| glance    | Value                            |
+-----------+----------------------------------+
| id        | 50ecc4ce62724e319f4fae3861e50f7d |
| interface | internal                         |
| region    | RegionOne                        |
| region_id | RegionOne                        |
| url       | http://controller:9292           |
+-----------+----------------------------------+
+-----------+----------------------------------+
| glance    | Value                            |
+-----------+----------------------------------+
| id        | 7d3df077a20b4461a372269f603b7516 |
| interface | public                           |
| region    | RegionOne                        |
| region_id | RegionOne                        |
| url       | http://controller:9292           |
+-----------+----------------------------------+

+-----------+----------------------------------+
| keystone  | Value                            |
+-----------+----------------------------------+
| id        | 88150c2fdc9d406c9b25113701248192 |
| interface | internal                         |
| region    | RegionOne                        |
| region_id | RegionOne                        |
| url       | http://controller:5000/v2.0      |
+-----------+----------------------------------+
+-----------+----------------------------------+
| keystone  | Value                            |
+-----------+----------------------------------+
| id        | cecab58c0f024d95b36a4ffa3e8d81e1 |
| interface | public                           |
| region    | RegionOne                        |
| region_id | RegionOne                        |
| url       | http://controller:5000/v2.0      |
+-----------+----------------------------------+
+-----------+----------------------------------+
| keystone  | Value                            |
+-----------+----------------------------------+
| id        | fc90391ae7cd4216aca070042654e424 |
| interface | admin                            |
| region    | RegionOne                        |
| region_id | RegionOne                        |
| url       | http://controller:35357/v2.0     |
+-----------+----------------------------------+

列出镜像服务目录的镜像,验证镜像服务的连通性:

$ nova image-list
+--------------------------------------+--------+--------+--------+
| ID                                   | Name   | Status | Server |
+--------------------------------------+--------+--------+--------+
| 38047887-61a7-41ea-9b49-27987d5e8bb9 | cirros | ACTIVE |        |
+--------------------------------------+--------+--------+--------+


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