Welcome to OpenStack Ceilometer installation manual !
This document is based on the OpenStack Official Documentation for Juno.
In this guide, we will go over the installation of OpenStack Ceilometer service !
The Telemetry module or Ceilometer performs the following functions:
- Efficiently collects the metering data about the CPU and network costs.
- Collects data by monitoring notifications sent from services or by polling the infrastructure.
- Configures the type of collected data to meet various operating requirements. It accesses and inserts the metering data through the REST API.
- Expands the framework to collect custom usage data by additional plug-ins.
- Produces signed metering messages that cannot be repudiated.
Ceilometer has five basic components that communicate by using the OpenStack messaging bus:
- A compute agent Runs on each compute node and polls for resource utilization statistics.
- A central agent Runs on a central management server to poll for resource utilization statistics for resources not tied to instances or compute nodes.
- A collector Runs on central management serverS to monitor the message queues (for notifications and for metering data coming from the agent). Notification messages are processed and turned into metering messages, which are sent to the message bus using the appropriate topic. Telemetry messages are written to the data store without modification.
- A data store A database capable of handling concurrent writes (from one or more collector instances) and reads (from the API server).
- An API server Runs on one or more central management servers to provide data access from the data store.
This section describes how to install and configure the Telemetry module on the controller node and the compute nodes.
Change to super user mode:
sudo su
Install the MongoDB:
apt-get install -y mongodb-server mongodb-clients python-pymongo
Edit the /etc/mongodb.conf file:
vi /etc/mongodb.conf bind_ip = 10.0.0.11 smallfiles = true
Restart the MongoDB service:
service mongodb stop rm -f /var/lib/mongodb/journal/prealloc.* service mongodb start
Create the ceilometer database:
mongo --host controller --eval ' db = db.getSiblingDB("ceilometer"); db.addUser({user: "ceilometer", pwd: "CEILOMETER_DBPASS", roles: [ "readWrite", "dbAdmin" ]})'Configure service user and role:
vi admin_creds #Paste the following: export OS_TENANT_NAME=admin export OS_USERNAME=admin export OS_PASSWORD=admin_pass export OS_AUTH_URL=http://controller:35357/v2.0 source admin_creds keystone user-create --name ceilometer --pass service_pass keystone user-role-add --user ceilometer --tenant service --role admin
Register the service and create the endpoint:
keystone service-create --name ceilometer --type metering --description "Telemetry" keystone endpoint-create \ --service-id $(keystone service-list | awk '/ metering / {print $2}') \ --publicurl http://controller:8777 \ --internalurl http://controller:8777 \ --adminurl http://controller:8777 \ --region regionOneInstall ceilometer packages:
apt-get install -y ceilometer-api ceilometer-collector ceilometer-agent-central \ ceilometer-agent-notification ceilometer-alarm-evaluator ceilometer-alarm-notifier python-ceilometerclient
Edit the /etc/ceilometer/ceilometer.conf file:
vi /etc/ceilometer/ceilometer.conf [database] replace connection=sqlite:////var/lib/ceilometer/ceilometer.sqlite with: connection = mongodb://ceilometer:CEILOMETER_DBPASS@controller:27017/ceilometer [DEFAULT] verbose = True rpc_backend = rabbit rabbit_host = controller rabbit_password = service_pass auth_strategy = keystone [keystone_authtoken] auth_uri = http://controller:5000/v2.0 identity_uri = http://controller:35357 admin_tenant_name = service admin_user = ceilometer admin_password = service_pass [service_credentials] os_auth_url = http://controller:5000/v2.0 os_username = ceilometer os_tenant_name = service os_password = service_pass [publisher] metering_secret = METERING_SECRET
Restart the Telemetry services:
service ceilometer-agent-central restart service ceilometer-agent-notification restart service ceilometer-api restart service ceilometer-collector restart service ceilometer-alarm-evaluator restart service ceilometer-alarm-notifier restart
Configure the Image Service for Telemetry. Edit the /etc/glance/glance-api.conf file:
vi /etc/glance/glance-api.conf [DEFAULT] notification_driver = messaging rpc_backend = rabbit rabbit_host = controller rabbit_password = service_pass
Edit the /etc/glance/glance-registry.conf file:
vi /etc/glance/glance-registry.conf [DEFAULT] notification_driver = messaging rpc_backend = rabbit rabbit_host = controller rabbit_password = service_pass
Restart the Image Service:
service glance-registry restart service glance-api restart
Change to super user mode:
sudo su
Install the ceilometer agent package:
apt-get install -y ceilometer-agent-compute
Edit the /etc/nova/nova.conf:
vi /etc/nova/nova.conf [DEFAULT] instance_usage_audit = True instance_usage_audit_period = hour notify_on_state_change = vm_and_task_state notification_driver = nova.openstack.common.notifier.rpc_notifier notification_driver = ceilometer.compute.nova_notifier
Restart the Compute service:
service nova-compute restart
Edit /etc/ceilometer/ceilometer.conf file:
vi /etc/ceilometer/ceilometer.conf [DEFAULT] verbose = True rabbit_host = controller rabbit_password = service_pass [keystone_authtoken] auth_uri = http://controller:5000/v2.0 identity_uri = http://controller:35357 admin_tenant_name = service admin_user = ceilometer admin_password = service_pass [service_credentials] os_auth_url = http://controller:5000/v2.0 os_username = ceilometer os_tenant_name = service os_password = service_pass os_endpoint_type = internalURL os_region_name = regionOne [publisher] metering_secret = METERING_SECRET
Restart the Telemetry service:
service ceilometer-agent-compute restart
That's it ;)
Institut Mines Télécom - Télécom SudParis
Copyright (C) 2015 Authors
Original Authors - Marouen Mechtri and Chaima Ghribi
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
in compliance with the License. You may obtain a copy of the License at:
http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Copyright (C) Marouen Mechtri : [email protected]
Copyright (C) Chaima Ghribi : [email protected]