Some OpenStack service APIs feature the ability to allow users to check the status of the service components without interacting with the daemons directly on the physical machine. These are typically admin-role-only functions and are a convenient way to verify the OpenStack component health. Let's try checking the status of nova components with the openstack compute service list command:
$ openstack compute service list
We should get output similar to Figure 10.6.
Figure 10.6: Output from the 'openstack compute service list' command
The output of this command shows us that the nova-conductor, nova-consoleauth,
nova-scheduler, and nova-compute services are all up and running. In a real-world OpenStack infrastructure, we would see multiple nova-compute services for every hypervisor in the environment.
Here are some other...