openstack-ansible-memcached.../defaults/main.yml
Andreas Jaeger 426a4f5f0d
Clean up the role and further isolate the service
This change cleans up the role a little bit making it more consistent.

A new configuration file has been added which will further isolate
our services using a named cgroup; this is similar to what we already do in
our openstack services. By further isolating the service from the system
we get quite a bit more control and accountability.

Change-Id: I02a84a2560853473c986ad0db26874341a23fc82
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
2017-11-29 20:37:56 -06:00

56 lines
2.2 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.
## Logging level
debug: False
## APT Cache Options
cache_timeout: 600
# Set the package install state for distribution packages
# Options are 'present' and 'latest'
memcached_package_state: "latest"
# MemcacheD could set 'PrivateDevices=True' for its systemd unit by default when
# installed into a container. This provides some additional security, but it
# causes problems with creating mount namespaces on CentOS 7 with systemd 219.
# While the security enhancements are helpful on bare metal hosts with
# multiple services running, they are not as helpful when MemcacheD is running
# in a container with its own isolated namespaces.
#
# Related bugs:
# https://bugs.launchpad.net/openstack-ansible/+bug/1697531
# https://github.com/lxc/lxc/issues/1623
# https://github.com/systemd/systemd/issues/6121
#
# Setting the following variable to 'yes' will disable the PrivateDevices
# setting in the systemd unit file for MemcacheD on CentOS 7 hosts.
memcached_disable_privatedevices: "{{ ansible_pkg_mgr == 'yum' }}"
# The default memcache memory setting is to use .25 of the available system ram
# as long as that value is < 8192. However you can set the `memcached_memory`
# value to whatever you like as an override.
base_memcached_memory: "{{ ansible_memtotal_mb | default(4096) }}"
memcached_memory: "{{ base_memcached_memory | int // 4 if base_memcached_memory | int // 4 < 8192 else 8192 }}"
memcached_port: 11211
memcached_listen: "127.0.0.1"
memcached_log: /var/log/memcached/memcached.log
memcached_connections: 1024
memcached_threads: 4
memcached_file_limits: "{{ memcached_connections | int + 1024 }}"
install_test_packages: False