openstack-ansible-os_nova/tasks/nova_init_upstart.yml
Jesse Pretorius 9a17ca682d Use dictionary for service group mappings
Change the 'nova_service_names' from a list to a dictionary mapping
of services, groups that install those services. This brings the
method into line with that used in the os_neutron role in order to
implement a more standardised method.

The init tasks have been updated to run once and loop through this
mapping rather than being included multiple times and re-run against
each host. This may potentially reduce role run times.

Currently the reload of upstart/systemd scripts may not happen if
only one script changes as the task uses a loop with only one result
register. This patch implements handlers to reload upstart/systemd
scripts to ensure that this happens when any one of the scripts
change.

The handler to reload the services now only tries to restart the
service if the host is in the group for the service according to the
service group mapping. This allows us to ensure that handler
failures are no longer ignored and that no execution time is wasted
trying to restart services which do not exist on the host.

Finally:
- Common variables shared by each service's template files have
  been updated to use the service namespaced variables.
- Unused handlers have been removed.
- Unused variables have been removed.

Change-Id: I53fb0ab1cc5762e3559d4ee2635d4cca532df7e3
2016-09-30 17:41:26 +00:00

27 lines
906 B
YAML

---
# Copyright 2015, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
- name: Place the init script
template:
src: "nova-upstart-init.j2"
dest: "/etc/init/{{ item.value.service_name }}.conf"
mode: "0644"
owner: "root"
group: "root"
with_dict: "{{ nova_services }}"
when: inventory_hostname in groups[item.value.group]
notify:
- Reload upstart init scripts