5363432f58
This patch adds the `memcached_disable_privatedevices` variable that
allows deployers to disable PrivateDevices in the systemd unit file.
This is a workaround to fix the systemd/LXC issues with bind
mounting an already bind mounted `/dev/ptmx` inside the LXC
container.
See Launchpad bug, lxc/lxc#1623, or systemd/systemd#6121 for more
details.
The is_metal variable is removed as it is unused.
Related-bug: 1697531
Change-Id: Id7c148bf901354a3dfc2f189ec659f2b92fc7985
(cherry picked from commit a9acd22e82)
56 lines
2.2 KiB
YAML
56 lines
2.2 KiB
YAML
---
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# Copyright 2014, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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## Logging level
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debug: False
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## APT Cache Options
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cache_timeout: 600
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# Set the package install state for distribution packages
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# Options are 'present' and 'latest'
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memcached_package_state: "latest"
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# MemcacheD sets 'PrivateDevices=True' for its systemd unit by default when
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# installed into a container. This provides some additional security, but it
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# causes problems with creating mount namespaces on CentOS 7 with systemd 219.
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# While the security enhancements are helpful on bare metal hosts with
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# multiple services running, they are not as helpful when MemcacheD is running
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# in a container with its own isolated namespaces.
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#
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# Related bugs:
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# https://bugs.launchpad.net/openstack-ansible/+bug/1697531
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# https://github.com/lxc/lxc/issues/1623
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# https://github.com/systemd/systemd/issues/6121
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#
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# Setting the following variable to 'yes' will disable the PrivateDevices
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# setting in the systemd unit file for MemcacheD on CentOS 7 hosts.
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memcached_disable_privatedevices: no
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# The default memcache memory setting is to use .25 of the available system ram
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# as long as that value is < 8192. However you can set the `memcached_memory`
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# value to whatever you like as an override.
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base_memcached_memory: "{{ ansible_memtotal_mb | default(4096) }}"
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memcached_memory: "{{ base_memcached_memory | int // 4 if base_memcached_memory | int // 4 < 8192 else 8192 }}"
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memcached_port: 11211
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memcached_listen: "127.0.0.1"
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memcached_log: /var/log/memcached/memcached.log
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memcached_connections: 1024
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memcached_threads: 4
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memcached_file_limits: "{{ memcached_connections | int + 1024 }}"
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install_test_packages: False
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