Installing Manually

Storage Backend Installation

This step is a prerequisite for the collector and API services. You may use one of the listed database backends below to store Ceilometer data.

Gnocchi

  1. Follow Gnocchi installation instructions

  2. Initialize Gnocchi for Ceilometer:

    gnocchi-upgrade --create-legacy-resource-types
    

    Note

    Prior to Gnocchi 2.1, Ceilometer resource types were included, therefore –create-legacy-resource-types flag is not needed.

  3. Edit /etc/ceilometer/ceilometer.conf for the collector service:

    [DEFAULT]
    meter_dispatchers = gnocchi
    event_dispatchers = gnocchi
    
    [dispatcher_gnocchi]
    filter_service_activity = False # Enable if using swift backend
    filter_project = <project name associated with gnocchi user> # if using swift backend
    
    [service_credentials]
    auth_url = <auth_url>:5000
    region_name = RegionOne
    password = password
    username = ceilometer
    project_name = service
    project_domain_id = default
    user_domain_id = default
    auth_type = password
    
  4. Copy gnocchi_resources.yaml to config directory (e.g./etc/ceilometer)

  5. To minimize data requests, caching and batch processing should be enabled:

    1. Enable resource caching (oslo.cache should be installed):

      [cache]
      backend_argument = redis_expiration_time:600
      backend_argument = db:0
      backend_argument = distributed_lock:True
      backend_argument = url:redis://localhost:6379
      backend = dogpile.cache.redis
      
    2. Enable batch processing:

      [collector]
      batch_size = 100
      batch_timeout = 5
      
  6. Start collector service

MongoDB

Follow the instructions to install the MongoDB package for your operating system, then start the service. The required minimum version of MongoDB is 2.4.x. You will also need to have pymongo 2.4 installed

To use MongoDB as the storage backend, change the ‘database’ section in ceilometer.conf as follows:

[database]
connection = mongodb://username:password@host:27017/ceilometer

SQLalchemy-supported DBs

You may alternatively use any SQLAlchemy-supported DB such as PostgreSQL or MySQL.

To use MySQL as the storage backend, change the ‘database’ section in ceilometer.conf as follows:

[database]
connection = mysql+pymysql://username:password@host/ceilometer?charset=utf8

HBase

HBase backend is implemented to use HBase Thrift interface, therefore it is mandatory to have the HBase Thrift server installed and running. To start the Thrift server, please run the following command:

${HBASE_HOME}/bin/hbase thrift start

The implementation uses HappyBase, which is a wrapper library used to interact with HBase via Thrift protocol. You can verify the Thrift connection by running a quick test from a client:

import happybase

conn = happybase.Connection(host=$hbase-thrift-server,
                            port=9090,
                            table_prefix=None,
                            table_prefix_separator='_')
print conn.tables() # this returns a list of HBase tables in your HBase server

Note

HappyBase version 0.5 or greater is required. Additionally, version 0.7 is not currently supported.

In the case of HBase, the required database tables (project, user, resource, meter) should be created manually with f column family for each one.

To use HBase as the storage backend, change the ‘database’ section in ceilometer.conf as follows:

[database]
connection = hbase://hbase-thrift-host:9090

It is possible to customize happybase’s table_prefix and table_prefix_separator via query string. By default table_prefix is not set and table_prefix_separator is ‘_’. When table_prefix is not specified table_prefix_separator is not taken into account. E.g. the resource table in the default case will be ‘resource’ while with table_prefix set to ‘ceilo’ and table_prefix_separator to ‘.’ the resulting table will be ‘ceilo.resource’. For this second case this is the database connection configuration:

[database]
connection = hbase://hbase-thrift-host:9090?table_prefix=ceilo&table_prefix_separator=.

To ensure proper configuration, please add the following lines to the hbase-site.xml configuration file:

<property>
  <name>hbase.thrift.minWorkerThreads</name>
  <value>200</value>
</property>

Installing the notification agent

  1. Clone the ceilometer git repository to the management server:

    $ cd /opt/stack
    $ git clone https://git.openstack.org/openstack/ceilometer.git
    
  2. As a user with root permissions or sudo privileges, run the ceilometer installer:

    $ cd ceilometer
    $ sudo python setup.py install
    
  3. Copy the sample configuration files from the source tree to their final location:

    $ mkdir -p /etc/ceilometer
    $ cp etc/ceilometer/*.json /etc/ceilometer
    $ cp etc/ceilometer/*.yaml /etc/ceilometer
    $ cp etc/ceilometer/ceilometer.conf.sample /etc/ceilometer/ceilometer.conf
    
  4. Edit /etc/ceilometer/ceilometer.conf

    1. Configure messaging:

      [oslo_messaging_notifications]
      topics = notifications
      
      [oslo_messaging_rabbit]
      rabbit_userid = stackrabbit
      rabbit_password = openstack1
      rabbit_hosts = 10.0.2.15
      
    2. Set the telemetry_secret value.

      Set the telemetry_secret value to a large, random, value. Use the same value in all ceilometer configuration files, on all nodes, so that messages passing between the nodes can be validated. This value can be left empty to disable message signing.

      Note

      Disabling signing will improve message handling performance

    Refer to Configuration Options for details about any other options you might want to modify before starting the service.

  5. Start the notification daemon:

    $ ceilometer-agent-notification
    

    Note

    The default development configuration of the collector logs to stderr, so you may want to run this step using a screen session or other tool for maintaining a long-running program in the background.

Installing the collector

  1. Clone the ceilometer git repository to the management server:

    $ cd /opt/stack
    $ git clone https://git.openstack.org/openstack/ceilometer.git
    
  2. As a user with root permissions or sudo privileges, run the ceilometer installer:

    $ cd ceilometer
    $ sudo python setup.py install
    
  3. Copy the sample configuration files from the source tree to their final location:

    $ mkdir -p /etc/ceilometer
    $ cp etc/ceilometer/*.json /etc/ceilometer
    $ cp etc/ceilometer/*.yaml /etc/ceilometer
    $ cp etc/ceilometer/ceilometer.conf.sample /etc/ceilometer/ceilometer.conf
    
  4. Edit /etc/ceilometer/ceilometer.conf

    1. Configure messaging:

      [oslo_messaging_notifications]
      topics = notifications
      
      [oslo_messaging_rabbit]
      rabbit_userid = stackrabbit
      rabbit_password = openstack1
      rabbit_hosts = 10.0.2.15
      
    2. Set the telemetry_secret value (if enabled for notification agent)

    Refer to Configuration Options for details about any other options you might want to modify before starting the service.

  5. Start the collector:

    $ ceilometer-collector
    

    Note

    The default development configuration of the collector logs to stderr, so you may want to run this step using a screen session or other tool for maintaining a long-running program in the background.

Installing the Polling Agent

Note

The polling agent needs to be able to talk to Keystone and any of the services being polled for updates. It also needs to run on your compute nodes to poll instances.

  1. Clone the ceilometer git repository to the server:

    $ cd /opt/stack
    $ git clone https://git.openstack.org/openstack/ceilometer.git
    
  2. As a user with root permissions or sudo privileges, run the ceilometer installer:

    $ cd ceilometer
    $ sudo python setup.py install
    
  3. Copy the sample configuration files from the source tree to their final location:

    $ mkdir -p /etc/ceilometer
    $ cp etc/ceilometer/*.json /etc/ceilometer
    $ cp etc/ceilometer/*.yaml /etc/ceilometer
    $ cp etc/ceilometer/ceilometer.conf.sample /etc/ceilometer/ceilometer.conf
    
  4. Configure messaging by editing /etc/ceilometer/ceilometer.conf:

    [oslo_messaging_notifications]
    topics = notifications
    
    [oslo_messaging_rabbit]
    rabbit_userid = stackrabbit
    rabbit_password = openstack1
    rabbit_hosts = 10.0.2.15
    
  5. In order to retrieve object store statistics, ceilometer needs access to swift with ResellerAdmin role. You should give this role to your os_username user for tenant os_tenant_name:

    $ openstack role create ResellerAdmin
    +-----------+----------------------------------+
    | Field     | Value                            |
    +-----------+----------------------------------+
    | domain_id | None                             |
    | id        | f5153dae801244e8bb4948f0a6fb73b7 |
    | name      | ResellerAdmin                    |
    +-----------+----------------------------------+
    
    $ openstack role add f5153dae801244e8bb4948f0a6fb73b7 \
                         --project $SERVICE_TENANT \
                         --user $CEILOMETER_USER
    
  6. Start the agent:

    $ ceilometer-polling
    
  7. By default, the polling agent polls the compute and central namespaces. You can specify which namespace to poll in the ceilometer.conf configuration file or on the command line:

    $ ceilometer-polling --polling-namespaces central,ipmi
    

Installing the API Server

Note

The API server needs to be able to talk to keystone and ceilometer’s database. It is only required if you choose to store data in legacy database or if you inject new samples via REST API.

  1. Clone the ceilometer git repository to the server:

    $ cd /opt/stack
    $ git clone https://git.openstack.org/openstack/ceilometer.git
    
  2. As a user with root permissions or sudo privileges, run the ceilometer installer:

    $ cd ceilometer
    $ sudo python setup.py install
    
  3. Copy the sample configuration files from the source tree to their final location:

    $ mkdir -p /etc/ceilometer
    $ cp etc/ceilometer/api_paste.ini /etc/ceilometer
    $ cp etc/ceilometer/*.json /etc/ceilometer
    $ cp etc/ceilometer/*.yaml /etc/ceilometer
    $ cp etc/ceilometer/ceilometer.conf.sample /etc/ceilometer/ceilometer.conf
    
  4. Configure messaging by editing /etc/ceilometer/ceilometer.conf:

    [oslo_messaging_notifications]
    topics = notifications
    
    [oslo_messaging_rabbit]
    rabbit_userid = stackrabbit
    rabbit_password = openstack1
    rabbit_hosts = 10.0.2.15
    
  5. Create a service for ceilometer in keystone:

    $ openstack service create metering --name=ceilometer \
                                        --description="Ceilometer Service"
    
  6. Create an endpoint in keystone for ceilometer:

    $ openstack endpoint create $CEILOMETER_SERVICE \
                                --region RegionOne \
                                --publicurl "http://$SERVICE_HOST:8777" \
                                --adminurl "http://$SERVICE_HOST:8777" \
                                --internalurl "http://$SERVICE_HOST:8777"
    

    Note

    CEILOMETER_SERVICE is the id of the service created by the first command and SERVICE_HOST is the host where the Ceilometer API is running. The default port value for ceilometer API is 8777. If the port value has been customized, adjust accordingly.

  7. Choose and start the API server.

    Ceilometer includes the ceilometer-api command. This can be used to run the API server. For smaller or proof-of-concept installations this is a reasonable choice. For larger installations it is strongly recommended to install the API server in a WSGI host such as mod_wsgi (see Installing the API behind mod_wsgi). Doing so will provide better performance and more options for making adjustments specific to the installation environment.

    If you are using the ceilometer-api command it can be started as:

    $ ceilometer-api
    

Note

The development version of the API server logs to stderr, so you may want to run this step using a screen session or other tool for maintaining a long-running program in the background.

Enabling Service Notifications

See the install guide for instructions on how to enable meters for specific OpenStack services.