With the telemetry modules installed and configured, we can now use the Ceilometer command line to interrogate resource usage statistics. We do this by retrieving meters that were set up for our environment and in listing the data.
Ensure that you are logged into a Ubuntu host that has access to our OpenStack environment on the 192.168.100.0/24 public network. This host will be used to run client tools against the OpenStack environment created. If you are using the accompanying Vagrant environment, as described in the Preface, you can use the controller node. This has the python-ceilometer package that provides the ceilometer command-line client.
If you created this node with Vagrant, you can execute the following command:
vagrant ssh controller
Ensure that you have set the following credentials (adjust the path to your certificates and key file to match your environment if not using the Vagrant environment):
export OS_TENANT_NAME...