安装和配置

安装和配置

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

先决条件

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。

  1. 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 ``trove ``数据库:

      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';
      

      用合适的密码替换 ``TROVE_DBPASS ``

    • 退出数据库客户端。

  2. 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
    
  3. 要创建服务证书,完成这些步骤:

    • 创建 ``trove ``用户:

      $ openstack user create --domain default --password-prompt trove
      User Password:
      Repeat User Password:
      +-----------+-----------------------------------+
      | Field     | Value                             |
      +-----------+-----------------------------------+
      | domain_id | default                           |
      | enabled   | True                              |
      | id        | ca2e175b851943349be29a328cc5e360  |
      | name      | trove                             |
      +-----------+-----------------------------------+
      
    • 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                          |
      +-------------+-----------------------------------+
      
  4. 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  |
    +--------------+----------------------------------------------+
    

安全并配置组件

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。

  1. 安装软件包:

    # yum install openstack-trove python-troveclient
    
  1. 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
      
  2. 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>`__.

  3. 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
    
  4. 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
    
  5. 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
    
  6. 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。

完成安装

  1. 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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