openstack-ansible-galera_server/tasks/galera_install_yum.yml

---
# Copyright 2016, 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: Update the local file system CRUD
  file:
    src: "{{ item.src|default(omit) }}"
    path: "{{ item.path }}"
    state: "{{ item.state }}"
    force: "{{ item.force|default(omit) }}"
  with_items:
    - { path: "/etc/mysql", state: "directory" }
    - { path: "/etc/mysql/conf.d", state: "directory" }
    - { src: "/usr/lib64/galera", path: "/usr/lib/galera", state: "link", force: true }
    - { src: "/etc/mysql/conf.d", path: "/etc/my.cnf.d", state: "link", force: true }
    - { src: "/etc/mysql/my.cnf", path: "/etc/my.cnf", state: "link", force: true }

- name: Add galera gpg-keys
  rpm_key:
    state: present
    key: "{{ item.keyserver }}/{{ item.key_name }}"
  register: add_keys
  until: add_keys|success
  failed_when: false
  retries: 5
  delay: 2
  with_items: "{{ galera_gpg_keys }}"
  tags:
    - galera-gpg-keys

- name: Add galera gpg-keys using fallback keyserver
  rpm_key:
    state: present
    key: "{{ item.fallback_keyserver }}/{{ item.key_name }}"
  register: add_keys
  until: add_keys|success
  retries: 5
  delay: 2
  with_items: "{{ galera_gpg_keys }}"
  when: add_keys|failed and (item.fallback_keyserver is defined)
  tags:
    - galera-gpg-keys

- name: Add galera repo
  yum_repository:
    name: "{{ galera_repo.name }}"
    description: "{{ galera_repo.description }}"
    baseurl: "{{ galera_repo.baseurl }}"
    gpgkey: "{{ galera_repo.gpgkey }}"
    gpgcheck: yes
    enabled: yes
  register: add_repos
  until: add_repos | success
  retries: 5
  delay: 2
  tags:
    - galera-repos

# When changing the repo URL, the metadata does
# not reliably update, resulting in the right
# URL being used, but the wrong package list.
# This is why we force the metadata to be
# cleaned out whenever the repo config changes.
- name: Force the expiry of the repo metadata
  command: "yum clean metadata"
  when: add_repos | changed
  tags:
    - galera-repos
    - skip_ansible_lint

- name: Install percona repo
  yum:
    pkg: "{{ galera_percona_xtrabackup_repo.repo }}"
    state: "{{ galera_percona_xtrabackup_repo.state }}"
  register: install_packages
  until: install_packages|success
  retries: 5
  delay: 2
  when: use_percona_upstream | bool
  tags:
    - galera-pre-yum-packages

- name: Install galera_server role remote packages (yum)
  yum:
    name: "{{ item }}"
    state: "{{ galera_server_package_state }}"
  with_items:
    - "{{ galera_packages_list | selectattr('enabled') | sum(attribute='packages', start=[]) }}"

- name: Enable mysql to start at boot
  service:
    name: "mysql"
    enabled: "yes"
  tags:
    - galera_server-config
    - galera-enable

# This glue to make the upgrade works. when testing the galera_server role we install version 10.0
# of mariadb and so the path doesn't exist, let's clean it up when we do upgrade testing the way
# we do for other roles.
# TODO: cleanup when we change upgrade test.
- name: Check if we are on systemd service
  stat:
    path: "/etc/systemd/system/mariadb.service.d/"
  register: systemd_mysql_service

# See comments above 'galera_disable_privatedevices' in defaults/main.yml for
# links to relevant bugs and discussion.
- name: Remove PrivateDevices systemd options when in container
  template:
    src: without-privatedevices.conf.j2
    dest: "/etc/systemd/system/mariadb.service.d/without-privatedevices.conf"
  when:
    - ansible_pkg_mgr == 'yum'
    - systemd_mysql_service.stat.exists
  notify:
    - Reload the systemd daemon
    - Restart mysql
  tags:
    - galera-config

# TODO: remove name argument when we upgrade to ansible 2.4
- name: Reload the systemd daemon
  systemd:
    daemon_reload: yes
    name: mysql
  when:
    - systemd_mysql_service.stat.exists

# NOTE(cloudnull): This is an idempotent shell task is it will only run once
#  provided the "/etc/mysql/rhel_configured" exists. This tasks automates the
#  MySQL secure setup which is done automatically in Ubuntu deployments.
- name: "Update root user, connections, and grant options"
  shell: |
    service mysql start || true
    # Reset the root password, at this time there is no password set
    mysqladmin --no-defaults --port=3306 --socket=/var/run/mysqld/mysqld.sock --host=127.0.0.1 --user=root password "{{ galera_root_password }}"
    # Setup the root user for MySQL
    mysql -u root -h localhost -e "UPDATE mysql.user SET Password=PASSWORD('$rootpass') WHERE User='root';"
    mysql -u root -h localhost -e "DELETE FROM mysql.user WHERE user='';"
    mysql -u root -h localhost -e "DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('%', 'localhost', '127.0.0.1', '::1');"
    mysql -u root -h localhost -e "DELETE FROM mysql.db WHERE Db='test' OR Db='test\_%';"
    mysql -u root -h localhost -e "GRANT ALL PRIVILEGES ON *.* TO '{{ galera_root_user }}'@'localhost' IDENTIFIED BY '{{ galera_root_password }}' WITH GRANT OPTION;"
    mysql -u root -h localhost -e "GRANT ALL PRIVILEGES ON *.* TO '{{ galera_root_user }}'@'127.0.0.1' IDENTIFIED BY '{{ galera_root_password }}' WITH GRANT OPTION;"
    mysql -u root -h localhost -e "GRANT ALL PRIVILEGES ON *.* TO '{{ galera_root_user }}'@'::1' IDENTIFIED BY '{{ galera_root_password }}' WITH GRANT OPTION;"
    mysql -u root -h localhost -e "GRANT ALL PRIVILEGES ON *.* TO '{{ galera_root_user }}'@'%' IDENTIFIED BY '{{ galera_root_password }}' WITH GRANT OPTION;"
    mysql -u root -h localhost -e "FLUSH PRIVILEGES;"
    # Create a marker file to ensure this script is not run again
    touch /etc/mysql/rhel_configured
    service mysql stop    
  args:
    creates: /etc/mysql/rhel_configured
  tags:
    - galera_server-config
    - galera-rhel-config
    - skip_ansible_lint