openstack-ansible/playbooks/roles/os_swift/handlers/main.yml
Steve Lewis f32a31d585 Ensure rsync restarts fully during swift setup
Existing rsync stop/start handlers were relying on the pattern
parameter to the Ansible service module which relies on the results
of ps to determine if the service is running. This is unnecessary
because the rsync service script is well-behaved and responds
appropriately to start stop and restart commands. Removal of the
pattern param ensures that the response from the service command is
used instead.

Root cause of the bug is that when Keystone was changed to share
fernet secrets via rsync over ssh tunnel, an rsync process was
introduced in AIOs, Swift stand-alones, and other deployment
configurations that contain Keystone containers on the storage hosts.

The resulting rsync processes within Keystone containers pollute the
results of ps commands on the host, fooling Ansible into thinking
that an rsync service is running on the standard port when it is not.

Secondly, the handler responsible for stopping rsync was not causing
the notice for "Ensure rsync service running" to trigger cleanly in
my testing, so the tasks were changed to trigger both notices in an
ordered list.

Change-Id: I5ed47f7c1974d6b22eeb2ff5816ee6fa30ee9309
Closes-Bug: 1481121
2015-09-03 05:45:50 +00:00

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---
# 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: Restart swift account services
service:
name: "{{ item }}"
state: "restarted"
pattern: "{{ item }}"
register: service_restart
with_items: swift_account_program_names
failed_when: false
- name: Restart swift container services
service:
name: "{{ item }}"
state: "restarted"
pattern: "{{ item }}"
register: service_restart
with_items: swift_container_program_names
failed_when: false
- name: Restart swift object services
service:
name: "{{ item }}"
state: "restarted"
pattern: "{{ item }}"
register: service_restart
with_items: swift_object_program_names
failed_when: false
- name: Restart swift proxy services
service:
name: "{{ item }}"
state: "restarted"
pattern: "{{ item }}"
register: service_restart
with_items: swift_proxy_program_names
failed_when: false
- name: Restart service
service:
name: "{{ item }}"
state: "restarted"
pattern: "{{ item }}"
enabled: "yes"
when: item is defined
- name: Restart rsyslog
service:
name: "rsyslog"
state: "restarted"
- name: Ensure rsync service stopped
service:
name: "rsync"
state: "stopped"
register: service_restart
failed_when: "'msg' in service_restart and 'FAIL' in service_restart.msg|upper"
register: service_restart
until: add_service|success
retries: 3
delay: 2
- name: Ensure rsync service running
service:
name: "rsync"
state: "started"