三节点搭建OpenStack Juno(3)
May 25, 2015
Technology
Nova
Nova数据库
创建nova数据库:
# mysql -u root -p
CREATE DATABASE nova;
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
quit;
创建nova用户:
# source /home/dash/admin-openrc.sh
root@Controller:~# keystone user-create --name nova --pass xxxxxx
+----------+----------------------------------+
| Property | Value |
+----------+----------------------------------+
| email | |
| enabled | True |
| id | 4a3768e3f4754cd0b9d47c6fadb22c7e |
| name | nova |
| username | nova |
+----------+----------------------------------+
为admin角色添加nova用户:
# keystone user-role-add --user nova --tenant service --role admin
添加nova服务条目:
# keystone service-create --name nova --type compute --description "OpenStack Compute"
+-------------+----------------------------------+
| Property | Value |
+-------------+----------------------------------+
| description | OpenStack Compute |
| enabled | True |
| id | 1587a46ee1e94402821398444175981f |
| name | nova |
| type | compute |
创建Compute服务的API endpoints:
# keystone endpoint-create --service-id $(keystone service-list | awk '/ compute / {print $2}') --publicurl http://Controller:8774/v2/%\(tenant_id\)s --internalurl http://Controller:8774/v2/%\(tenant_id\)s --adminurl http://Controller:8774/v2/%\(tenant_id\)s --region regionOne
+-------------+-----------------------------------------+
| Property | Value |
+-------------+-----------------------------------------+
| adminurl | http://Controller:8774/v2/%(tenant_id)s |
| id | bd439dc236c04956a11b353a7b74331c |
| internalurl | http://Controller:8774/v2/%(tenant_id)s |
| publicurl | http://Controller:8774/v2/%(tenant_id)s |
| region | regionOne |
| service_id | 1587a46ee1e94402821398444175981f |
+-------------+-----------------------------------------+
Nova安装及配置
安装以下包:
# apt-get install nova-api nova-cert nova-conductor nova-consoleauth nova-novncproxy nova-scheduler python-novaclient
更改数据库链接:
$ sudo vim /etc/nova/nova.conf
[database]
...
connection = mysql://nova:NOVA_DBPASS@controller/nova
配置RabbitMQ访问:
[DEFAULT]
...
rpc_backend = rabbit
rabbit_host = controller
rabbit_password = RABBIT_PASS
配置鉴权服务:
[DEFAULT]
...
auth_strategy = keystone
[keystone_authtoken]
...
auth_uri = http://controller:5000/v2.0
identity_uri = http://controller:35357
admin_tenant_name = service
admin_user = nova
admin_password = NOVA_PASS
更改my_ip:
[DEFAULT]
...
my_ip = 10.55.55.2
更改VNC侦听：
[DEFAULT]
...
vncserver_listen = 10.55.55.2
vncserver_proxyclient_address = 10.55.55.2
配置glance服务所在:
[glance]
...
host = controller
现在开始配置数据库:
# su -s /bin/sh -c "nova-manage db sync" nova
重启服务以完成安装:
# service nova-api restart
# service nova-cert restart
# service nova-consoleauth restart
# service nova-scheduler restart
# service nova-conductor start
# service nova-conductor restart
# service nova-novncproxy
# service nova-novncproxy restart
扫尾，删除不用的sqlite数据库:
# rm -f /var/lib/nova/nova.sqlite
安装和配置计算节点
在计算节点上，安装以下包:
# apt-get install nova-compute sysfsutils
配置具体过程如下:
配置RabbitMQ:
$ sudo vim /etc/nova/nova.conf
[DEFAULT]
...
rpc_backend = rabbit
rabbit_host = controller
rabbit_password = RABBIT_PASS
配置鉴权服务:
[DEFAULT]
...
auth_strategy = keystone
[keystone_authtoken]
...
auth_uri = http://Controller:5000/v2.0
identity_uri = http://Controller:35357
admin_tenant_name = service
admin_user = nova
admin_password = NOVA_PASS
配置my_ip:
[DEFAULT]
...
my_ip = 10.55.55.4
配置允许远程终端访问:
[DEFAULT]
...
vnc_enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = 10.55.55.4
novncproxy_base_url = http://Controller:6080/vnc_auto.html
配置glance服务:
[glance]
...
host = Controller
完成安装， 首先判断你的CPU是否支持硬件加速:
$ egrep -c '(vmx|svm)' /proc/cpuinfo
如果返回的值小于1, 则更改/etc/nova/nova-compute.conf配置中的[libvirt]选项，选用qemu而不是kvm:
$ sudo vim /etc/nova/nova-compute.conf
[libvirt]
...
virt_type = qemu
重启nova-compute服务:
# service nova-compute restart
扫尾，删除不用的nova.sqlite文件:
# rm -f /var/lib/nova/nova.sqlite
验证
具体步骤如下:
root@Controller:~# source ~/admin-openrc.sh
root@Controller:~# nova service-list
+----+------------------+------------+----------+---------+-------+----------------------------+-----------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+----+------------------+------------+----------+---------+-------+----------------------------+-----------------+
| 1 | nova-cert | Controller | internal | enabled | up | 2015-05-25T12:00:20.000000 | - |
| 2 | nova-consoleauth | Controller | internal | enabled | up | 2015-05-25T12:00:28.000000 | - |
| 3 | nova-scheduler | Controller | internal | enabled | up | 2015-05-25T12:00:23.000000 | - |
| 4 | nova-conductor | Controller | internal | enabled | up | 2015-05-25T12:00:25.000000 | - |
| 5 | nova-compute | Compute | nova | enabled | up | 2015-05-25T12:00:20.000000 | - |
+----+------------------+------------+----------+---------+-------+----------------------------+-----------------+
root@Controller:~# nova image-list
+--------------------------------------+---------------------+--------+--------+
| ID | Name | Status | Server |
+--------------------------------------+---------------------+--------+--------+
| 3d45ea58-731c-4eb5-bf30-db1b4bfe4f57 | cirros-0.3.3-x86_64 | ACTIVE | |
+--------------------------------------+---------------------+--------+--------+
注意我们看到了compute节点已经被加入进来。这样我们完成了添加计算服务，接下来我们将开始添加网络组件，这可能是最难的一部分。