---
# Copyright 2015, 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
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- include: galera_running_check.yml
  vars:
    num_retries: 1
    wait_delay: 3

- name: Check for cluster state failure
  fail:
    msg: |
      The cluster may be broken, mysql is not running but appears to be
      installed. Fix it before re-running the playbook or override with
      'openstack-ansible -e galera_ignore_cluster_state=true galera-install.yml'.
  when:
    - not galera_ignore_cluster_state | bool
    - mysql_running.rc == 1
    - mysql_running.stderr | search("Check that mysqld is running and that the socket")
  tags:
    - galera-cluster-state-check

- name: Gather mysql facts
  mysql_status_facts:
  failed_when: false
  tags:
    - galera-cluster-state-check

- name: Check for cluster state failure
  fail:
    msg: |
      The cluster may be broken, mysql is running but unable to gather mysql facts.
      Fix it before re-running the playbook or override with
      'openstack-ansible -e galera_ignore_cluster_state=true galera-install.yml'.
  when:
    - not galera_ignore_cluster_state | bool
    - mysql_running.rc == 0
    - mysql_status is not defined
  tags:
    - galera-cluster-state-check

- name: Check for cluster state failure
  fail:
    msg: |
      wsrep_incoming_addresses does not match across the cluster. Please fix before
      re-running the playbooks or override with
      'openstack-ansible -e galera_ignore_cluster_state=true galera-install.yml'.
  with_items: "{{ play_hosts }}"
  when:
    - not galera_ignore_cluster_state | bool
    - mysql_running.rc == 0
    - mysql_status['wsrep_incoming_addresses'] != hostvars[item]['mysql_status']['wsrep_incoming_addresses']
  tags:
    - galera-cluster-state-check

- name: Fail if galera_cluster_name doesnt match file value
  fail:
    msg: >
      "The galera_cluster_name variable does not match what is set in mysql.
       Check your galera_cluster_name setting in your user_*.yml files in /etc/openstack_deploy
       and compare to the current value in /etc/mysql/conf.d/cluster.cnf on the host, and
       the wsrep_cluster_name value set in your running galera cluster.
       If you are sure you want to change this variable you can force change your
       galera_cluster_name variable by setting 'galera_force_change_cluster_name: True'"
  when:
    - mysql_running.rc == 0
    - mysql_status['wsrep_cluster_name'] != galera_cluster_name
    - not galera_force_change_cluster_name | bool
  tags:
    - galera-cluster-state-check

- set_fact:
    galera_existing_cluster: true
  when: mysql_running.rc == 0
  tags:
    - galera-cluster-state-check