安装和配置¶

先决条件¶

安装和配置Telemetry服务之前,你必须创建创建一个数据库、服务凭证和API端点。但是,不像其他服务,Telemetry服务使用NoSQL 数据库。在进一步处理之前查看 ref:environment-nosql-database 来安装和配置MongoDB。

1. 创建 ceilometer 数据库:

   # mongo --host controller --eval '
    db = db.getSiblingDB("ceilometer");
    db.addUser({user: "ceilometer",
    pwd: "CEILOMETER_DBPASS",
    roles: [ "readWrite", "dbAdmin" ]})'
   MongoDB shell version: 2.4.x
   connecting to: controller:27017/test
   {
    "user" : "ceilometer",
    "pwd" : "72f25aeee7ad4be52437d7cd3fc60f6f",
    "roles" : [
    "readWrite",
    "dbAdmin"
    ],
    "_id" : ObjectId("5489c22270d7fad1ba631dc3")
   }
   

   用合适的密码替换 CEILOMETER_DBPASS。

   注解

   如果该命令失败了,提示你没有权限插入用户,你可能需要在``/etc/mongodb.conf``文件里临时注释掉``auth``选项,使用``systemctl restart mongodb``重启MongoDB服务,并且重新执行插入命令。

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:

   $ . admin-openrc
   

3. 要创建服务证书,完成这些步骤:

   • 创建 ceilometer 用户:

     $ openstack user create --domain default --password-prompt ceilometer
     User Password:
     Repeat User Password:
     +-----------+----------------------------------+
     | Field | Value |
     +-----------+----------------------------------+
     | domain_id | e0353a670a9e496da891347c589539e9 |
     | enabled | True |
     | id | c859c96f57bd4989a8ea1a0b1d8ff7cd |
     | name | ceilometer |
     +-----------+----------------------------------+
     

   • 添加 admin 角色到 ceilometer 用户上。

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

     注解

     这个命令执行后没有输出。

   • 创建 ceilometer 服务实体:

     $ openstack service create --name ceilometer \
      --description "Telemetry" metering
     +-------------+----------------------------------+
     | Field | Value |
     +-------------+----------------------------------+
     | description | Telemetry |
     | enabled | True |
     | id | 5fb7fd1bb2954fddb378d4031c28c0e4 |
     | name | ceilometer |
     | type | metering |
     +-------------+----------------------------------+
     

4. 创建Telemetry服务API端点

   $ openstack endpoint create --region RegionOne \
    metering public http://controller:8777
   +--------------+----------------------------------+
   | Field | Value |
   +--------------+----------------------------------+
   | enabled | True |
   | id | b808b67b848d443e9eaaa5e5d796970c |
   | interface | public |
   | region | RegionOne |
   | region_id | RegionOne |
   | service_id | 5fb7fd1bb2954fddb378d4031c28c0e4 |
   | service_name | ceilometer |
   | service_type | metering |
   | url | http://controller:8777 |
   +--------------+----------------------------------+
   $ openstack endpoint create --region RegionOne \
    metering internal http://controller:8777
   +--------------+----------------------------------+
   | Field | Value |
   +--------------+----------------------------------+
   | enabled | True |
   | id | c7009b1c2ee54b71b771fa3d0ae4f948 |
   | interface | internal |
   | region | RegionOne |
   | region_id | RegionOne |
   | service_id | 5fb7fd1bb2954fddb378d4031c28c0e4 |
   | service_name | ceilometer |
   | service_type | metering |
   | url | http://controller:8777 |
   +--------------+----------------------------------+
   $ openstack endpoint create --region RegionOne \
    metering admin http://controller:8777
   +--------------+----------------------------------+
   | Field | Value |
   +--------------+----------------------------------+
   | enabled | True |
   | id | b2c00566d0604551b5fe1540c699db3d |
   | interface | admin |
   | region | RegionOne |
   | region_id | RegionOne |
   | service_id | 5fb7fd1bb2954fddb378d4031c28c0e4 |
   | service_name | ceilometer |
   | service_type | metering |
   | url | http://controller:8777 |
   +--------------+----------------------------------+
   

安全并配置组件¶

1. 安装软件包:

   # apt-get install ceilometer-api ceilometer-collector \
    ceilometer-agent-central ceilometer-agent-notification
    python-ceilometerclient
   

2. 编辑 /etc/ceilometer/ceilometer.conf,同时完成如下动作:

   • 在 [database] 部分,配置数据库访问:

     [database]
     ...
     connection = mongodb://ceilometer:CEILOMETER_DBPASS@controller:27017/ceilometer
     

     用你选择的Telemtry服务数据库密码替换 CEILOMETER_DBPASS。按照RFC2396,你必须参考`RFC2396 <https://www.ietf.org/rfc/rfc2396.txt>`_,在连接字符串转义特殊字符,如:’:’,’/’,’+’和’@’。

   • 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” 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
     memcached_servers = controller:11211
     auth_type = password
     project_domain_name = default
     user_domain_name = default
     project_name = service
     username = ceilometer
     password = CEILOMETER_PASS
     

     用你在认证服务中为 “ceilometer” 选择的密码替换 “CEILOMETER_PASS”。

   • 在 “[service_credentials]” 部分,配置服务证书:

     [service_credentials]
     ...
     auth_type = password
     auth_url = http://controller:5000/v3
     project_domain_name = default
     user_domain_name = default
     project_name = service
     username = ceilometer
     password = CEILOMETER_PASS
     interface = internalURL
     region_name = RegionOne
     

     用你在认证服务中为 “ceilometer” 选择的密码替换 “CEILOMETER_PASS”。

完成安装¶

• 重启Telemetry服务:

  # service ceilometer-agent-central restart
  # service ceilometer-agent-notification restart
  # service ceilometer-api restart
  # service ceilometer-collector restart