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OpenStack Rocky : Ceilometer 設定#1 (Control ノード)
2018/09/06
 
OpenStack Telemetry Service (Ceilometer) をインストールします。
当例では以下のような環境を例に Ceilometer サービスをインストールします。
------------+---------------------------+---------------------------+------------
            |                           |                           |
        eth0|10.0.0.30              eth0|10.0.0.50              eth0|10.0.0.51
+-----------+-----------+   +-----------+-----------+   +-----------+-----------+
|    [ Control Node ]   |   |    [ Storage Node ]   |   |    [ Compute Node ]   |
|                       |   |                       |   |                       |
|  MariaDB    RabbitMQ  |   |      Open vSwitch     |   |        Libvirt        |
|  Memcached  httpd     |   |        L2 Agent       |   |     Nova Compute      |
|  Keystone   Glance    |   |        L3 Agent       |   |      Open vSwitch     |
|  Nova API  Cinder API |   |     Metadata Agent    |   |        L2 Agent       |
|  Neutron Server       |   |     Cinder Volume     |   |  Ceilometer Compute   |
|  Metadata Agent       |   |        Heat API       |   |                       |
|  Gnocchi              |   |      Heat Engine      |   |                       |
|  Ceilometer Central   |   |                       |   |                       |
+-----------------------+   +-----------------------+   +-----------------------+

[1]
こちらを参考に事前に Gnocchi をインストールしておきます
当例では Ceilometer で収集したデータを Gnocchi へ保管するよう設定します。
[2] Control ノードの Keystone に Ceilometer 用のユーザー等々を登録しておきます。
# ceilometer ユーザー作成 (service プロジェクト所属)

[root@dlp ~(keystone)]#
openstack user create --domain default --project service --password servicepassword ceilometer

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | ece4ac6c7e764a979e36ba0b2faf848e |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | cfc889992c144012a0092b270bfa0fbd |
| name                | ceilometer                       |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# ceilometer ユーザーを admin ロール に加える

[root@dlp ~(keystone)]#
openstack role add --project service --user ceilometer admin
# ceilometer 用サービスエントリ作成

[root@dlp ~(keystone)]#
openstack service create --name ceilometer --description "OpenStack Telemetry Service" metering

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Telemetry Service      |
| enabled     | True                             |
| id          | 0d3b39307e1b44a18e9a153b685c1ba1 |
| name        | ceilometer                       |
| type        | metering                         |
+-------------+----------------------------------+
[3] Ceilometer サービスをインストールします。
# Rocky, EPEL からインストール

[root@dlp ~(keystone)]#
yum --enablerepo=centos-openstack-rocky,epel -y install openstack-ceilometer-central openstack-ceilometer-notification python2-ceilometerclient
[4] Ceilometer の基本設定です。
[root@dlp ~(keystone)]#
mv /etc/ceilometer/ceilometer.conf /etc/ceilometer/ceilometer.conf.org

[root@dlp ~(keystone)]#
vi /etc/ceilometer/ceilometer.conf
# 新規作成

[DEFAULT]
# RabbitMQ 接続情報
transport_url = rabbit://openstack:password@10.0.0.30

[api]
auth_mode = keystone

[dispatcher_gnocchi]
filter_service_activity = False

# Keystone 認証情報 (gnocchiで認証)
[keystone_authtoken]
www_authenticate_uri = http://10.0.0.30:5000
auth_url = http://10.0.0.30:5000
memcached_servers = 10.0.0.30:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = gnocchi
password = servicepassword

# Keystone 認証情報 (ceilometerで認証)
[service_credentials]
auth_url = http://10.0.0.30:5000
memcached_servers = 10.0.0.30:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = ceilometer
password = servicepassword

[root@dlp ~(keystone)]#
chmod 640 /etc/ceilometer/ceilometer.conf

[root@dlp ~(keystone)]#
chgrp ceilometer /etc/ceilometer/ceilometer.conf

[root@dlp ~(keystone)]#
su -s /bin/bash ceilometer -c "ceilometer-upgrade --skip-metering-database"

[root@dlp ~(keystone)]#
systemctl start openstack-ceilometer-central openstack-ceilometer-notification

[root@dlp ~(keystone)]#
systemctl enable openstack-ceilometer-central openstack-ceilometer-notification

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