Files
openstack-ansible-os_neutron/handlers/main.yml
Kevin Carter 32891e596b 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: I6078d6cf19da27afc22b5f699165acea0139ddc1
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
2017-03-29 14:10:07 -05:00

48 lines
1.8 KiB
YAML

---
# Copyright 2014, 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: Reload systemd daemon
command: "systemctl daemon-reload"
notify:
- Restart neutron services
- name: Restart neutron services
service:
name: "{{ item.value.service_name }}"
state: restarted
with_dict: "{{ neutron_services }}"
failed_when: false
notify:
- Run ns-metadata-proxy process cleanup
when: item.value.service_en | bool
# NOTE(cloudnull):
# When installing or upgrading it is possible that an old metadata proxy process will not
# be restarted by the metadata agent when a version changes. To fix it the ns-metadata
# proxy pids are killed if they're not running the current tag. Once the old processeses
# are removed the metadata agent will respawn the missing process within 60 seconds using
# the correct code.
- name: Run ns-metadata-proxy process cleanup
shell: |
for ns_pid in $(pgrep neutron-ns-meta); do
echo $(readlink -f "/proc/$ns_pid/exe") | grep -qv "{{ neutron_venv_tag }}"
if [ $? -eq 0 ]; then
if kill -9 "$ns_pid"; then
logger -s "old metadata proxy pid found and has been cleaned up on: \"$ns_pid\""
fi
fi
done
when: neutron_services['neutron-metadata-agent'].service_en | bool