tripleo-ansible/playbooks/preserve_ssh_host_keys.yml
Julia Kreger 81e53343b9 CORE-1338 Sync and Wait for SSH host key preservation
In order to mitigate the effects of unsafe disk caching which is
often used in virtualization, this commit adds a sync command and
a short pause to the ssh key preservation step in order to help
ensure that the files are written out to disk prior to the rebuild
process being triggered.

Change-Id: I75c014feca5d70aec589fee7cdd1d0f1dcaea01b
2014-09-15 17:21:31 -04:00

31 lines
1.1 KiB
YAML

# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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 ssh host key backup directory"
sudo: yes
file:
path=/mnt/state/_ssh_host_keys
state=directory
owner=root
group=root
mode=0700
- name: "Preserve ssh host keys"
sudo: yes
action: shell cp -a /etc/ssh/ssh_host_* /mnt/state/_ssh_host_keys/
- name: "Issue Sync to OS in order to help mitigate unsafe disk caching in virtualized environments."
command: sync
- name: "Pausing for 15 seconds to allow for any delayed IO in unsafe disk caches to be written to disk."
pause: seconds=15