openstack-ansible/playbooks/rabbitmq-install.yml
Darren Birkett 21c2478901 install rabbitmq-server in serial
In order to prevent race conditions with nodes joining the cluster
simultaneously when the cluster is first formed, we move the rabbitmq
installation play to be 'serial: 1'. However, when the nodes are being
upgraded, it cannot be done in serial so in this case we set 'serial: 0'

There are some tasks/roles called in this playbook that can still be
run in parallel, so we split out the rabbitmq-server install into a
separate play so that we only serialise the parts that are necessary
to ensure maximum efficiency.

Change-Id: I97cdae27fdce4f400492c2134b6589b55fbc5a61
Fixes-Bug: #1573030
2016-05-06 15:12:45 +01:00

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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: Create and configure rabbitmq container
hosts: rabbitmq_all
max_fail_percentage: 0
user: root
pre_tasks:
- name: Use the lxc-openstack aa profile
lxc_container:
name: "{{ container_name }}"
container_config:
- "lxc.aa_profile=lxc-openstack"
delegate_to: "{{ physical_host }}"
when: not is_metal | bool
register: container_config
tags:
- lxc-aa-profile
- name: Wait for container ssh
wait_for:
port: "22"
delay: "{{ ssh_delay }}"
search_regex: "OpenSSH"
host: "{{ ansible_ssh_host }}"
delegate_to: "{{ physical_host }}"
when: container_config is defined and container_config | changed
register: ssh_wait_check
until: ssh_wait_check | success
retries: 3
tags:
- ssh-wait
roles:
- role: "pip_lock_down"
when: "(groups['repo_all'] | length) >= 1"
- role: "system_crontab_coordination"
tags:
- "system-crontab-coordination"
vars:
is_metal: "{{ properties.is_metal|default(false) }}"
# NOTE(mancdaz): rabbitmq cannot be upgraded in serial, so when
# rabbitmq_upgrade=True, serial is set to 0, else it is 1 for installs
- name: Install rabbitmq server
hosts: rabbitmq_all
serial: "{{ rabbitmq_upgrade|default(false) | bool | ternary(0, 1)}}"
max_fail_percentage: 20
user: root
roles:
- role: "rabbitmq_server"
tags:
- "rabbitmq-server"
- "upgrade-rabbitmq-server"
- role: "rsyslog_client"
rsyslog_client_log_rotate_file: rabbitmq_log_rotate
rsyslog_client_log_dir: "/var/log/rabbitmq"
rsyslog_client_config_name: "99-rabbitmq-rsyslog-client.conf"
tags:
- "rabbitmq-rsyslog-client"
- "rsyslog-client"