openstack-ansible-openstack.../tasks/openstack_update_hosts_file.yml
Olivier Bourdon d5d516ee7c Fix error when /etc/hosts does not exist
Even though this might seem very rare/unusual/non-acceptable
there are cases where the /etc/hosts file does not exist
(or has been moved temporarily). This fix prevents error
from being raised. This furthermore ensure idem-potency
as without the fix, using the role after failure just
works because /etc/hosts has now been created.

Change-Id: Ied4875d4fc6754bb262496e69b231b192166b23c
2018-03-15 16:17:47 +01:00

41 lines
1.3 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: Drop hosts file entries script locally
template:
src: "openstack-host-hostfile-setup.sh.j2"
dest: "/var/tmp/openstack-host-hostfile-setup.sh"
mode: "0755"
delegate_to: localhost
run_once: true
vars:
ansible_python_interpreter: "/usr/bin/python"
- name: Copy templated hosts file entries script
template:
src: "/var/tmp/openstack-host-hostfile-setup.sh"
dest: "/usr/local/bin/openstack-host-hostfile-setup.sh"
mode: "0755"
- name: Stat host file
stat:
path: /etc/hosts
register: stat_hosts
- name: Update hosts file
command: "/usr/local/bin/openstack-host-hostfile-setup.sh"
register: update_hosts
changed_when: not stat_hosts.stat.exists or stat_hosts.stat.checksum | string != update_hosts.stdout | string