OpenStack Ocata Telemetry 数据收集服务

1 安装配置计算服务

在所有计算节点上：

1.1 安装配置组件

安装包：

# yum install -y openstack-ceilometer-compute

编辑配置文件/etc/ceilometer/ceilometer.conf：

[DEFAULT]
...
transport_url = rabbit://openstack:pass123456@controller3
auth_strategy = keystone

[keystone_authtoken]
...
auth_uri = http://controller3:5000
auth_url = http://controller3:35357
memcached_servers = controller3:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = ceilometer
password = pass123456

[service_credentials]
...
auth_url = http://controller3:5000
project_domain_id = default
user_domain_id = default
auth_type = password
username = ceilometer
project_name = service
password = pass123456
interface = internalURL
region_name = RegionOne

1.2 配置计算节点使用Telemetry

编辑配置文件/etc/nova/nova.conf：

[DEFAULT]
...
instance_usage_audit = True
instance_usage_audit_period = hour
notify_on_state_change = vm_and_task_state

[oslo_messaging_notifications]
...
driver = messagingv2

1.3 完成安装

开启代理和配置开机启动，并重启计算服务：

# systemctl enable openstack-ceilometer-compute.service
# systemctl start openstack-ceilometer-compute.service

# systemctl restart openstack-nova-compute.service

2 安装配置控制服务

以下操作在控制节点上进行：

2.1 Ceilometer服务：

2.1.1 创建gnocchi数据库

# 用root用户登录数据库
$ mysql -u root -p

# 创建gnocchi数据库
MariaDB [(none)]> CREATE DATABASE gnocchi;

# 赋予用户操作数据库最高权限
MariaDB [(none)]> GRANT ALL PRIVILEGES ON  gnocchi.* TO 'gnocchi'@'controller3' IDENTIFIED BY 'pass123456';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON  gnocchi.* TO 'gnocchi'@'%' IDENTIFIED BY 'pass123456';

MariaDB [(none)]> exit

2.1.2 配置Ceilometer服务

2.1.2.1 创建ceilometer用户

$ . admin-openrc

$ openstack user create --domain default --password-prompt ceilometer
User Password:
Repeat User Password:

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

2.1.2.2 创建ceilometer服务实体

$ openstack service create --name ceilometer \
  --description "Telemetry" metering

2.1.3 配置Gnocchi服务

2.1.3.1 创建gnocchi用户

$ openstack user create --domain default --password-prompt gnocchi
User Password:
Repeat User Password:

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

2.1.3.2 创建gnocchi服务实体

$ openstack service create --name gnocchi \
  --description "Metric Service" metric

2.1.3.3 创建gnocchi API端点

$ openstack endpoint create --region RegionOne \
  metric public http://controller3:8041

$ openstack endpoint create --region RegionOne \
  metric internal http://controller3:8041

$ openstack endpoint create --region RegionOne \
  metric admin http://controller3:8041

2.1.4 安装组件

2.1.4.1 安装gnocchi组件

首先安装编译所需要的工具和开发包：

# yum install -y gcc python-devel
# pip install lz4

安装包：

$ pip install gnocchi[file,postgresql,keystone]

2.1.4.2 安装ceilometer组件

安装包：

# yum install -y openstack-ceilometer-collector openstack-ceilometer-notification \
  openstack-ceilometer-central python-ceilometerclient

2.1.5 配置组件

创建一些会使用到的文件夹

$ mkdir /etc/gnocchi
$ mkdir /var/log/gnocchi

2.1.5.1 配置ceilometer服务

编辑配置文件/etc/ceilometer/ceilometer.conf：

[DEFAULT]
debug = true
verbose = true
meter_dispatchers=gnocchi
event_dispatchers=gnocchi

transport_url = rabbit://openstack:pass123456@controller3

[dispatcher_gnocchi]
filter_service_activity = False
archive_policy = low

[service_credentials]
...
auth_type = password
auth_url = http://controller3:5000/v3
project_domain_name = default
user_domain_name = default
project_name = service
username = ceilometer
password = pass123456
interface = internalURL
region_name = RegionOne

2.1.5.2 配置gnocchi服务

编辑/etc/gnocchi/gnocchi.conf文件

[DEFAULT]
debug = true
verbose = true
log_dir = /var/log/gnocchi

[api]
workers = 4
auth_mode = keystone
middlewares = oslo_middleware.cors.CORS

[indexer]
url = mysql+pymysql://gnocchi:pass123456@controller3/gnocchi?charset=utf8

[keystone_authtoken]
auth_type = password
auth_url = http://controller3:5000/v3
auth_uri = http://controller3:35357/v3
memcached_servers = controller3:11211
project_domain_name = Default
user_domain_name = Default
project_name = service
username = gnocchi
password = pass123456
interface = internalURL
region_name = RegionOne

[statsd]
host = controller3
resource_id = 83746b69-87e8-4ee2-b9af-39769cc32b75
archive_policy_name = low

初始化gnocchi的indexer和storage

$ gnocchi-upgrade

编辑启动脚本/usr/bin/gnocchi-api， ，将默认的8000 API服务端口改为8041：

parser.add_argument('--port', '-p', type=int, default=8041,
                        help='TCP port to listen on')

运行gnocchi：

$ gnocchi-api
$ gnocchi-statsd
$ gnocchi-metricd

在admin-openrc用户权限环境脚本里添加：

export OS_AUTH_TYPE=password

创建在gnocchi中Ceilometer资源：

# ceilometer-upgrade --skip-metering-database

2.1.3 完成安装

开启Telemetry服务并且配置随系统启动：

# systemctl enable openstack-ceilometer-notification.service \
  openstack-ceilometer-central.service \
  openstack-ceilometer-collector.service
# systemctl start openstack-ceilometer-notification.service \
  openstack-ceilometer-central.service \
  openstack-ceilometer-collector.service

2.2 块服务

2.2.1 配置Cinder使用Telemetry

编辑配置文件/etc/cinder/cinder.conf：

[oslo_messaging_notifications]
...
driver = messagingv2

$ cinder-volume-usage-audit  --start_time='YYYY-MM-DD HH:MM:SS' \
  --end_time='YYYY-MM-DD HH:MM:SS' --send_actions

2.2.2 完成安装

在控制节点重启块存储服务：

# systemctl restart openstack-cinder-api.service openstack-cinder-scheduler.service

在存储节点重启块服务：

# systemctl restart openstack-cinder-volume.service

2.3 镜像服务

2.3.1 配置Glance使用Telemetry

编辑配置文件/etc/glance/glance-api.conf 和/etc/glance/glance-registry.conf：

[DEFAULT]
...
transport_url = rabbit://openstack:pass123456@controller3

[oslo_messaging_notifications]
...
driver = messagingv2

2.3.2 完成安装

重启镜像服务：

# systemctl restart openstack-glance-api.service openstack-glance-registry.service

2.4 网络服务

2.4.1 配置Neutron使用Telemetry

编辑配置文件 /etc/neutron/neutron.conf：

[oslo_messaging_notifications]
...
driver = messagingv2

2.4.2 完成安装

重启网络服务：

# systemctl restart neutron-server.service

3 验证操作

$ . admin-openrc

$ gnocchi resource list  --type image
+--------------------------------------+-------+----------------------------------+---------+--------------------------------------+----------------------------------+----------+----------------------------------+--------------+
| id                                   | type  | project_id                       | user_id | original_resource_id                 | started_at                       | ended_at | revision_start                   | revision_end |
+--------------------------------------+-------+----------------------------------+---------+--------------------------------------+----------------------------------+----------+----------------------------------+--------------+
| a6b387e1-4276-43db-b17a-e10f649d85a3 | image | 6fd9631226e34531b53814a0f39830a9 | None    | a6b387e1-4276-43db-b17a-e10f649d85a3 | 2017-01-25T23:50:14.423584+00:00 | None     | 2017-01-25T23:50:14.423601+00:00 | None         |
+--------------------------------------+-------+----------------------------------+---------+--------------------------------------+----------------------------------+----------+----------------------------------+--------------+

$ gnocchi resource show a6b387e1-4276-43db-b17a-e10f649d85a3
+-----------------------+-------------------------------------------------------------------+
| Field                 | Value                                                             |
+-----------------------+-------------------------------------------------------------------+
| created_by_project_id | aca4db3db9904ecc9c1c9bb1763da6a8                                  |
| created_by_user_id    | 07b0945689a4407dbd1ea72c3c5b8d2f                                  |
| creator               | 07b0945689a4407dbd1ea72c3c5b8d2f:aca4db3db9904ecc9c1c9bb1763da6a8 |
| ended_at              | None                                                              |
| id                    | a6b387e1-4276-43db-b17a-e10f649d85a3                              |
| metrics               | image.download: 839afa02-1668-4922-a33e-6b6ea7780715              |
|                       | image.serve: 1132e4a0-9e35-4542-a6ad-d6dc5fb4b835                 |
|                       | image.size: 8ecf6c17-98fd-446c-8018-b741dc089a76                  |
| original_resource_id  | a6b387e1-4276-43db-b17a-e10f649d85a3                              |
| project_id            | 6fd9631226e34531b53814a0f39830a9                                  |
| revision_end          | None                                                              |
| revision_start        | 2017-01-25T23:50:14.423601+00:00                                  |
| started_at            | 2017-01-25T23:50:14.423584+00:00                                  |
| type                  | image                                                             |
| user_id               | None                                                              |
+-----------------------+-------------------------------------------------------------------+

$ IMAGE_ID=$(glance image-list | grep 'cirros' | awk '{ print $2 }')
$ glance image-download $IMAGE_ID > /tmp/cirros.img

$ gnocchi measures show 839afa02-1668-4922-a33e-6b6ea7780715
+---------------------------+-------------+-----------+
| timestamp                 | granularity |     value |
+---------------------------+-------------+-----------+
| 2017-01-26T15:35:00+00:00 |       300.0 | 3740163.0 |
+---------------------------+-------------+-----------+

$ rm /tmp/cirros.img