Telemetry provides an API service that provides a collector and a range of disparate agents. Before you can install these agents on nodes such as the compute node, you must use this procedure to install the core components on the controller node. Install the Telemetry service on the controller node: # apt-get install ceilometer-api ceilometer-collector ceilometer-agent-central python-ceilometerclient # yum install openstack-ceilometer-api openstack-ceilometer-collector openstack-ceilometer-central python-ceilometerclient # zypper install openstack-ceilometer-api openstack-ceilometer-collector \ openstack-ceilometer-agent-central python-ceilometerclient \ openstack-ceilometer-alarm-evaluator openstack-ceilometer-alarm-notifier Respond to the prompts for [keystone_authtoken] settings, RabbitMQ credentials and API endpoint registration. The Telemetry service uses a database to store information. Specify the location of the database in the configuration file. The examples use a MongoDB database on the controller node: # yum install mongodb-server mongodb # zypper install mongodb # apt-get install mongodb By default MongoDB is configured to create several 1 GB files in the /var/lib/mongodb/journal/ directory to support database journaling. If you need to minimize the space allocated to support database journaling then set the smallfiles configuration key to true in the /etc/mongodb.conf configuration file. This will reduce the size of each journaling file to 512 MB. As the files are created the first time the MongoDB service starts you must stop the service and remove the files for this change to take effect: # service mongodb stop # rm /var/lib/mongodb/journal/j._0 # rm /var/lib/mongodb/journal/prealloc.1 # rm /var/lib/mongodb/journal/prealloc,2 # service mongodb start For more information on the smallfiles configuration key refer to the MongoDB documentation at . For instructions detailing the steps to disable database journaling entirely refer to . Configure MongoDB to make it listen on the controller public IP address. Edit the /etc/mongodb.conf file and modify the bind_ip key: bind_ip = 192.168.0.10 Restart the MongoDB service to apply the configuration change: # service mongodb restart Start the MongoDB server and configure it to start when the system boots: # service mongodb start # chkconfig mongodb on # service mongod start # chkconfig mongod on Create the database and a ceilometer database user: # mongo --host controller --eval ' db = db.getSiblingDB("ceilometer"); db.addUser({user: "ceilometer", pwd: "CEILOMETER_DBPASS", roles: [ "readWrite", "dbAdmin" ]})' Configure the Telemetry service to use the database: # openstack-config --set /etc/ceilometer/ceilometer.conf \ database connection mongodb://ceilometer:CEILOMETER_DBPASS@controller:27017/ceilometer Edit the /etc/ceilometer/ceilometer.conf file and change the [database] section: [database] # The SQLAlchemy connection string used to connect to the # database (string value) connection = mongodb://ceilometer:CEILOMETER_DBPASS@controller:27017/ceilometer You must define an secret key that is used as a shared secret among Telemetry service nodes. Use openssl to generate a random token and store it in the configuration file: # CEILOMETER_TOKEN=$(openssl rand -hex 10) # echo $CEILOMETER_TOKEN # openstack-config --set /etc/ceilometer/ceilometer.conf publisher_rpc metering_secret $CEILOMETER_TOKEN For SUSE Linux Enterprise, run the following command: # CEILOMETER_TOKEN=$(openssl rand 10|hexdump -e '1/1 "%.2x"') # openssl rand -hex 10 Edit the /etc/ceilometer/ceilometer.conf file and change the [publisher_rpc] section. Replace CEILOMETER_TOKEN with the results of the openssl command: [publisher_rpc] # Secret value for signing metering messages (string value) metering_secret = CEILOMETER_TOKEN Configure the RabbitMQ access: # openstack-config --set /etc/ceilometer/ceilometer.conf DEFAULT rabbit_host controller # openstack-config --set /etc/ceilometer/ceilometer.conf DEFAULT rabbit_password RABBIT_PASS Edit the /etc/ceilometer/ceilometer.conf file and update the [DEFAULT] section: rabbit_host = controller rabbit_password = RABBIT_PASS Configure collector dispatcher: # openstack-config --set /etc/ceilometer/ceilometer.conf \ collector dispatcher database Configure the log directory. Edit the /etc/ceilometer/ceilometer.conf file and update the [DEFAULT] section: [DEFAULT] log_dir = /var/log/ceilometer Create a ceilometer user that the Telemetry service uses to authenticate with the Identity Service. Use the service tenant and give the user the admin role: # keystone user-create --name=ceilometer --pass=CEILOMETER_PASS --email=ceilometer@example.com # keystone user-role-add --user=ceilometer --tenant=service --role=admin Add the credentials to the configuration files for the Telemetry service: # openstack-config --set /etc/ceilometer/ceilometer.conf \ keystone_authtoken auth_host controller # openstack-config --set /etc/ceilometer/ceilometer.conf \ keystone_authtoken admin_user ceilometer # openstack-config --set /etc/ceilometer/ceilometer.conf \ keystone_authtoken admin_tenant_name service # openstack-config --set /etc/ceilometer/ceilometer.conf \ keystone_authtoken auth_protocol http # openstack-config --set /etc/ceilometer/ceilometer.conf \ keystone_authtoken auth_uri http://controller:5000 # openstack-config --set /etc/ceilometer/ceilometer.conf \ keystone_authtoken admin_password CEILOMETER_PASS # openstack-config --set /etc/ceilometer/ceilometer.conf \ service_credentials os_username ceilometer # openstack-config --set /etc/ceilometer/ceilometer.conf \ service_credentials os_tenant_name service # openstack-config --set /etc/ceilometer/ceilometer.conf \ service_credentials os_password CEILOMETER_PASS Edit the /etc/ceilometer/ceilometer.conf file and change the [keystone_authtoken] section: [keystone_authtoken] auth_host = controller auth_port = 35357 auth_protocol = http auth_uri = http://controller:5000 admin_tenant_name = service admin_user = ceilometer admin_password = CEILOMETER_PASS Also set the [service_credentials] section: [service_credentials] os_username = ceilometer os_tenant_name = service os_password = CEILOMETER_PASS Register the Telemetry service with the Identity Service so that other OpenStack services can locate it. Use the keystone command to register the service and specify the endpoint: # keystone service-create --name=ceilometer --type=metering \ --description="Ceilometer Telemetry Service" # keystone endpoint-create \ --service-id=$(keystone service-list | awk '/ metering / {print $2}') \ --publicurl=http://controller:8777 \ --internalurl=http://controller:8777 \ --adminurl=http://controller:8777 Restart the services with their new settings: # service ceilometer-agent-central restart # service ceilometer-api restart # service ceilometer-collector restart Start the openstack-ceilometer-api, openstack-ceilometer-agent-centralopenstack-ceilometer-central, openstack-ceilometer-collector, openstack-ceilometer-alarm-evaluator, and openstack-ceilometer-alarm-notifier services and configure them to start when the system boots: # service openstack-ceilometer-api start # service openstack-ceilometer-agent-central start # service openstack-ceilometer-collector start # chkconfig openstack-ceilometer-api on # chkconfig openstack-ceilometer-agent-central on # chkconfig openstack-ceilometer-collector on # service openstack-ceilometer-alarm-evaluator start # service openstack-ceilometer-alarm-notifier start # chkconfig openstack-ceilometer-alarm-evaluator on # chkconfig openstack-ceilometer-alarm-notifier on # service openstack-ceilometer-api start # service openstack-ceilometer-central start # service openstack-ceilometer-collector start # chkconfig openstack-ceilometer-api on # chkconfig openstack-ceilometer-central on # chkconfig openstack-ceilometer-collector on