---
# 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
# limitations under the License.

- name: Check node status
  command: >
    mysql --silent --skip-column-names --connect-timeout=10 -e 'SHOW STATUS LIKE "wsrep_local_state";'
  failed_when: false
  changed_when: false
  register: _node_status

- name: Fail if cluster is out of sync
  fail:
    msg: >
      The cluster may be broken, the cluster state is not known to be good.
      Fix the cluster state before re-running the playbooks. To ignore the
      cluster state set '-e galera_ignore_cluster_state=true'.
  when:
    - _node_status.rc != 0
    - (_node_status.stdout.split()[-1] | default(false)) in ["2", "4"]

- name: Check cluster name
  command: >
    mysql --silent --skip-column-names --connect-timeout=10 -e 'SHOW VARIABLES LIKE "wsrep_cluster_name";'
  failed_when: false
  changed_when: false
  register: _cluster_name

- name: Fail if galera_cluster_name doesnt match provided 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. To ignore the
      cluster state set '-e galera_ignore_cluster_state=true'.
  when:
    - _cluster_name.rc != 0
    - (_cluster_name.stdout.split()[-1] | default(false)) != galera_cluster_name