Pike Series Release Notes

16.0.0

New Features

  • New variables have been added to allow a deployer to customize a ceilometer systemd unit file to their liking.

  • The task dropping the ceilometer systemd unit files now uses the config_template action plugin allowing deployers access to customize the unit files as they see fit without having to load extra options into the defaults and polute the generic systemd unit file with jinja2 variables and conditionals.

  • For the os_ceilometer role, the systemd unit TimeoutSec value which controls the time between sending a SIGTERM signal and a SIGKILL signal when stopping or restarting the service has been reduced from 300 seconds to 120 seconds. This provides 2 minutes for long-lived sessions to drain while preventing new ones from starting before a restart or a stop. The RestartSec value which controls the time between the service stop and start when restarting has been reduced from 150 seconds to 2 seconds to make the restart happen faster. These values can be adjusted by using the ceilometer_*_init_config_overrides variables which use the config_template task to change template defaults.

  • Several configuration files that were not templated for the os_ceilometer role are now retrieved from git. The git repository used can be changed using the ceilometer_git_config_lookup_location variable. By default this points to git.openstack.org. These files can still be changed using the ceilometer_x_overrides variables.

  • The os_ceilometer role now includes a facility where you can place your own templates in /etc/openstack_deploy/ceilometer (by default) and it will be deployed to the target host after being interpreted by the template engine. If no file is found there, the fallback of the git sourced template is used.

  • Gnocchi is now used as the default publisher.

Upgrade Notes

  • For the os_ceilometer role, the systemd unit TimeoutSec value which controls the time between sending a SIGTERM signal and a SIGKILL signal when stopping or restarting the service has been reduced from 300 seconds to 120 seconds. This provides 2 minutes for long-lived sessions to drain while preventing new ones from starting before a restart or a stop. The RestartSec value which controls the time between the service stop and start when restarting has been reduced from 150 seconds to 2 seconds to make the restart happen faster. These values can be adjusted by using the ceilometer_*_init_config_overrides variables which use the config_template task to change template defaults.

  • The following variables have been removed from the os_ceilometer role as their respective upstream files are no longer present. * ceilometer_event_definitions_yaml_overrides * ceilometer_event_pipeline_yaml_overrides

  • The ceilometer-api service/container can be removed as part of O->P upgrades. A ceilometer-central container will be created to contain the central ceilometer agents.

Deprecation Notes

  • The ceilometer_keystone_auth_plugin variable has been deprecated. ceilometer_keystone_auth_type should be used instead to configure authentication type.

  • The ceilometer API service is now deprecated. OpenStack-Ansible no longer deploys this service. To make queries against metrics, alarms, and/or events, please use the the gnocchi, aodh, and panko APIs, respectively.