这部分用来描述如何在控制节点上安装并配置数据库服务,即trove
这部分假设你的OpenStack工作环境中至少已经安装了以下组件:计算,镜像,身份认证服务
如果你想要备份以及恢复,你同样需要对象存储
如果你想要在块存储卷组上提供数据存储功能,你同样需要对象存储
安装和配置数据库服务之前,你必须创建创建一个数据库、服务凭证和API端点。
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
CREATE DATABASE trove;
对``trove ``数据库授予恰当的访问权限:
GRANT ALL PRIVILEGES ON trove.* TO 'trove'@'localhost' \
IDENTIFIED BY 'TROVE_DBPASS';
GRANT ALL PRIVILEGES ON trove.* TO 'trove'@'%' \
IDENTIFIED BY 'TROVE_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的命令的访问权限:
$ source admin-openrc.sh
要创建服务证书,完成这些步骤:
$ openstack user create --domain default --password-prompt trove
User Password:
Repeat User Password:
+-----------+-----------------------------------+
| Field | Value |
+-----------+-----------------------------------+
| domain_id | default |
| enabled | True |
| id | ca2e175b851943349be29a328cc5e360 |
| name | trove |
+-----------+-----------------------------------+
给 trove `` 用户添加 ``admin 角色:
$ openstack role add --project service --user trove admin
注解
这个命令执行后没有输出。
创建``trove``服务实体:
$ openstack service create --name trove \
--description "Database" database
+-------------+-----------------------------------+
| Field | Value |
+-------------+-----------------------------------+
| description | Database |
| enabled | True |
| id | 727841c6f5df4773baa4e8a5ae7d72eb |
| name | trove |
| type | database |
+-------------+-----------------------------------+
创建数据库服务API端点:
$ openstack endpoint create --region RegionOne \
database public http://controller:8779/v1.0/%\(tenant_id\)s
+--------------+----------------------------------------------+
| Field | Value |
+--------------+----------------------------------------------+
| enabled | True |
| id | 3f4dab34624e4be7b000265f25049609 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 727841c6f5df4773baa4e8a5ae7d72eb |
| service_name | trove |
| service_type | database |
| url | http://controller:8779/v1.0/%\(tenant_id\)s |
+--------------+----------------------------------------------+
$ openstack endpoint create --region RegionOne \
database internal http://controller:8779/v1.0/%\(tenant_id\)s
+--------------+----------------------------------------------+
| Field | Value |
+--------------+----------------------------------------------+
| enabled | True |
| id | 9489f78e958e45cc85570fec7e836d98 |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 727841c6f5df4773baa4e8a5ae7d72eb |
| service_name | trove |
| service_type | database |
| url | http://controller:8779/v1.0/%\(tenant_id\)s |
+--------------+----------------------------------------------+
$ openstack endpoint create --region RegionOne \
database admin http://controller:8779/v1.0/%\(tenant_id\)s
+--------------+----------------------------------------------+
| Field | Value |
+--------------+----------------------------------------------+
| enabled | True |
| id | 76091559514b40c6b7b38dde790efe99 |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 727841c6f5df4773baa4e8a5ae7d72eb |
| service_name | trove |
| service_type | database |
| url | http://controller:8779/v1.0/%\(tenant_id\)s |
+--------------+----------------------------------------------+
注解
默认配置文件在各发行版本中可能不同。你可能需要添加这些部分,选项而不是修改已经存在的部分和选项。另外,在配置片段中的省略号(...)表示默认的配置选项你应该保留。
安装软件包:
# yum install openstack-trove python-troveclient
在``/etc/trove``目录下,编辑``trove.conf``, ``trove-taskmanager.conf``以及``trove-conductor.conf``文件并完成以下步骤:
为以下的设置提供合适的值:
[DEFAULT]
log_dir = /var/log/trove
trove_auth_url = http://controller:5000/v2.0
nova_compute_url = http://controller:8774/v2
cinder_url = http://controller:8776/v1
swift_url = http://controller:8080/v1/AUTH_
notifier_queue_hostname = controller
...
[database]
connection = mysql://trove:TROVE_DBPASS@controller/trove
通过在每个文件中设置以下选项来配置数据库服务使用``RabbitMQ``消息队列
[DEFAULT]
...
rpc_backend = rabbit
[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS
验证``api-paste.ini``文件是否存在于``/etc/trove``目录下
如果文件不存在,你可以从以下这个地址获得它:<http://git.openstack.org/cgit/openstack/trove/plain/etc/trove/api-paste.ini?h=stable/mitaka>`__.
编辑``trove.conf``文件,像下面展示的那样为其设置合适的值
[DEFAULT]
auth_strategy = keystone
...
# Config option for showing the IP address that nova doles out
add_addresses = True
network_label_regex = ^NETWORK_LABEL$
...
api_paste_config = /etc/trove/api-paste.ini
...
[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = trove
password = TROVE_PASS
编辑``trove-taskmanager.conf``文件,像下面展示的那样,设置其连接到OpenStack计算服务:
[DEFAULT]
...
# Configuration options for talking to nova via the novaclient.
# These options are for an admin user in your keystone config.
# It proxy's the token received from the user to send to nova
# via this admin users creds,
# basically acting like the client via that proxy token.
nova_proxy_admin_user = admin
nova_proxy_admin_pass = ADMIN_PASS
nova_proxy_admin_tenant_name = service
taskmanager_manager = trove.taskmanager.manager.Manager
编辑``/etc/trove/trove-guestagent.conf``文件,让之后的trove的guests能够连接到你的OpenStack环境:
rabbit_host = controller
rabbit_password = RABBIT_PASS
nova_proxy_admin_user = admin
nova_proxy_admin_pass = ADMIN_PASS
nova_proxy_admin_tenant_name = service
trove_auth_url = http://controller:35357/v2.0
同步你之前创建的trove数据库:
# su -s /bin/sh -c "trove-manage db_sync" trove
...
2016-04-06 22:00:17.771 10706 INFO trove.db.sqlalchemy.migration [-]
Upgrading mysql://trove:dbaasdb@controller/trove to version latest
注解
忽略输出中任何不推荐使用的信息。
启动数据库服务并配置随系统启动:
# systemctl enable openstack-trove-api.service \
openstack-trove-taskmanager.service \
openstack-trove-conductor.service
# systemctl start openstack-trove-api.service \
openstack-trove-taskmanager.service \
openstack-trove-conductor.service
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