--- issues: - | OpenStack-Ansible sets a new variable, `memcached_disable_privatedevices`, that controls whether the `PrivateDevices` configuration in MemcacheD's systemd unit file is enabled. If the `memcached_server` role is deployed on a bare metal host, the default is maintained (`PrivateDevices=true`). If the role is deployed within a container, the `PrivateDevices` configuration is set to `true` to work around a systemd bug with a bind mounted `/dev/ptmx`. See `Launchpad Bug 1697531 `_ for more details.