openstack-ansible-os_sahara/tasks/sahara_init_systemd.yml
Kevin Carter 012d3f3530 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: Ic4edfa39b8ee42d0f6192b986e1c40c9c94488df
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
2017-03-28 23:37:47 -05:00

69 lines
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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 TEMP run dir
file:
path: "/var/run/{{ item.value.service_name }}"
state: directory
owner: "{{ sahara_system_user_name }}"
group: "{{ sahara_system_group_name }}"
mode: "02755"
with_dict: "{{ sahara_services }}"
when: inventory_hostname in groups[item.value.group]
- name: Create TEMP lock dir
file:
path: "/var/lock/{{ item.value.service_name }}"
state: directory
owner: "{{ sahara_system_user_name }}"
group: "{{ sahara_system_group_name }}"
mode: "02755"
with_dict: "{{ sahara_services }}"
when: inventory_hostname in groups[item.value.group]
# TODO:
# Remove this in Pike as it only needed to handle upgrades
# from Newton->Newton and Newton->Ocata
- name: Cleanup old tmpfiles.d entry
file:
path: "/etc/tmpfiles.d/{{ item.value.service_name }}.conf"
state: absent
with_dict: "{{ sahara_services }}"
when: inventory_hostname in groups[item.value.group]
- name: Create tmpfiles.d entry
template:
src: "sahara-systemd-tmpfiles.j2"
dest: "/etc/tmpfiles.d/openstack-{{ item.value.service_name }}.conf"
mode: "0644"
owner: "root"
group: "root"
with_dict: "{{ sahara_services }}"
when: inventory_hostname in groups[item.value.group]
- name: Place the systemd init script
config_template:
src: "sahara-systemd-init.j2"
dest: "/etc/systemd/system/{{ item.value.service_name }}.service"
mode: "0644"
owner: "root"
group: "root"
config_overrides: "{{ item.value.init_config_overrides }}"
config_type: "ini"
with_dict: "{{ sahara_services }}"
when: inventory_hostname in groups[item.value.group]
notify:
- Restart sahara services