openstack-ansible-os_keystone/tasks/keystone_init_systemd.yml
Kevin Carter 329a7819e4 Ensure the components are isolated from the system
This creates a specific slice which all OpenStack services will operate
from. By creating an independent slice these components will be governed
away from the system slice allowing us to better optimise resource
consumption.

See the following for more information on slices:

* https://www.freedesktop.org/software/systemd/man/systemd.slice.html

See for following for more information on resource controls:

* https://www.freedesktop.org/software/systemd/man/systemd.resource-control.html

Tools like ``systemd-cgtop`` and ``systemd-cgls`` will now give us
insight into specific processes, process groups, and resouce consumption
in ways that we've not had access to before. To enable some of this reporting
the accounting options have been added to the [Service] section of the unit
file.

Change-Id: I0eeabe3ac4d18687948a9550b6ecc83874fafde7
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
2017-03-28 23:48:01 -05:00

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YAML

---
# Copyright 2016, 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: Create Keystone TEMP dirs
file:
path: "{{ item.path }}/{{ program_name }}"
state: directory
owner: "{{ system_user }}"
group: "{{ system_group }}"
mode: "02755"
with_items:
- { path: "/var/run" }
- { path: "/var/lock" }
- name: Create tempfile.d entry
template:
src: "keystone-systemd-tempfiles.j2"
dest: "/etc/tmpfiles.d/keystone.conf"
mode: "0644"
owner: "root"
group: "root"
- name: Place the systemd init script
config_template:
src: "keystone-uwsgi_systemd-init.j2"
dest: "/etc/systemd/system/{{ program_name }}.service"
mode: "0644"
owner: "root"
group: "root"
config_overrides: "{{ keystone_uwsgi_init_overrides }}"
config_type: "ini"
register: systemd_init
- name: Reload the systemd daemon
command: "systemctl daemon-reload"
when: systemd_init | changed
notify:
- Restart Keystone APIs on first node
- Restart Keystone APIs on other nodes
- Restart service on first node
- Restart service on other nodes