Initial commit

tests/integration/targets/setup_mysql_replication/defaults/main.yml

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+# There is no MySQL 5.7 for RHEL 8. This will need to be retooled to use 8.0 for RHEL 8 or use the setup_mysql8 role for everything
+repo_link: https://repo.mysql.com/mysql57-community-release-el{{ ansible_facts.distribution_major_version }}.rpm
+repo_name: mysql-community
+mysql_package_name: mysql-community-server
+
+master_port: 3306
+standby_port: 3307
+master_datadir: /var/lib/mysql_master
+master_cnf: /etc/my-1.cnf
+standby_cnf: /etc/my-2.cnf
+standby_datadir: /var/lib/mysql_standby
+standby_logdir: /var/log/mysql_standby
+default_logdir: /var/log/mysql
+mysqld_err_log: '{{ default_logdir }}/mysql-err.log'

tests/integration/targets/setup_mysql_replication/tasks/main.yml

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+# Copyright: (c) 2019, Andrew Klychkov (@Andersson007) <aaklychkov@mail.ru>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# Setup MySQL master-standby replication into one container:
+- import_tasks: setup_mysql_cluster.yml
+  when:
+    - ansible_facts.distribution == 'CentOS'
+    - ansible_facts.distribution_major_version is version('7', '==')

tests/integration/targets/setup_mysql_replication/tasks/setup_mysql_cluster.yml

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+# We run two servers listening different ports
+# to be able to check replication (one server for master, another for standby).
+
+- name: Install Repo
+  yum:
+    name: '{{ repo_link }}'
+
+- name: Install MySQL community server
+  yum:
+    name: '{{ mysql_package_name }}'
+
+- name: Create directories
+  file:
+    state: directory
+    path: "{{ item }}"
+    owner: mysql
+    group: mysql
+  loop:
+  - "{{ master_datadir }}"
+  - "{{ standby_datadir }}"
+  - "{{ standby_logdir }}"
+  - "{{ default_logdir }}"
+
+- name: Copy cnf templates
+  template:
+    src: '{{ item.conf_templ }}'
+    dest: '{{ item.conf_dest }}'
+    owner: mysql
+    group: mysql
+    force: yes
+  loop:
+  - { conf_templ: my-1.cnf.j2, conf_dest: '{{ master_cnf }}' }
+  - { conf_templ: my-2.cnf.j2, conf_dest: '{{ standby_cnf }}' }
+
+- name: Initialize DBs
+  shell: 'mysqld --user=mysql --initialize-insecure --datadir={{ item }}'
+  loop:
+  - '{{ master_datadir }}'
+  - '{{ standby_datadir }}'
+
+- name: Start master services
+  shell: 'mysqld --defaults-file={{ master_cnf }} --user=mysql --datadir={{ master_datadir }} --log-error={{ mysqld_err_log }} &'
+
+- name: Start standby services
+  shell: 'mysqld --defaults-file={{ standby_cnf }} --user=mysql --datadir={{ standby_datadir }} --log-error={{ mysqld_err_log }} &'
+
+- name: Pause
+  pause: seconds=3
+
+########### For painful debug uncomment the lines below ##
+#- name: DEBUG Check  log
+#  shell: 'cat {{ mysqld_err_log }}'
+#  ignore_errors: yes
+##########################################################
+
+- name: Check connection to the master
+  shell: 'echo "SHOW DATABASES;" | mysql -P {{ master_port }} -h 127.0.0.1'
+
+- name: Check connection to the standby
+  shell: "echo \"SHOW VARIABLES LIKE '%version%';\" | mysql -P {{ standby_port }} -h 127.0.0.1"

tests/integration/targets/setup_mysql_replication/templates/my-1.cnf.j2

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+[mysqld]
+server_id           = 1
+port                = {{ master_port }}
+datadir             = {{ master_datadir }}
+socket              = {{ master_datadir }}/mysql.sock
+pid-file            = {{ master_datadir }}/mysql.pid
+#mysqladmin          = /usr/bin/mysqladmin
+log_bin             = /var/log/mysql/mysql-bin.log
+sync_binlog         = 1
+binlog-format       = ROW
+innodb_flush_log_at_trx_commit  = 1

tests/integration/targets/setup_mysql_replication/templates/my-2.cnf.j2

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+[mysqld]
+server_id           = 2
+port                = {{ standby_port }}
+socket              = /var/run/mysqld/mysqld_slave.sock
+pid-file            = /var/run/mysqld/mysqld_slave.pid
+datadir             = {{ standby_datadir }}
+log_bin             = {{ standby_logdir }}/mysql-bin.log
+relay-log           = {{ standby_logdir }}/relay-bin
+relay-log-index     = {{ standby_logdir }}/relay-bin.index
+master-info-file    = {{ standby_logdir }}/master.info
+relay-log-info-file = {{ standby_logdir }}/relay-log.info
+master-info-repository = TABLE
+relay-log-info-repository = TABLE