CentOS 7
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OpenStack Rocky : Configure Ceilometer#2 (Compute Node)
2018/09/06
 
Install OpenStack Telemetry Service (Ceilometer).
This example is based on the emvironment like follows.
------------+---------------------------+---------------------------+------------
            |                           |                           |
        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] Install Ceilometer service on Compute Node.
# install from Rocky, EPEL

[root@node01 ~]#
yum --enablerepo=centos-openstack-rocky,epel -y install openstack-ceilometer-compute
[2] Configure Ceilometer.
[root@node01 ~]#
mv /etc/ceilometer/ceilometer.conf /etc/ceilometer/ceilometer.conf.org

[root@node01 ~]#
vi /etc/ceilometer/ceilometer.conf
# create new

[DEFAULT]
# RabbitMQ connection info
transport_url = rabbit://openstack:password@10.0.0.30

[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@node01 ~]#
chmod 640 /etc/ceilometer/ceilometer.conf

[root@node01 ~]#
chgrp ceilometer /etc/ceilometer/ceilometer.conf

[root@node01 ~]#
systemctl start openstack-ceilometer-compute

[root@node01 ~]#
systemctl enable openstack-ceilometer-compute

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