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Issue geerlingguy#6: Add replication configuration.
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+106
-16
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6 files changed

+106
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lines changed

‎defaults/main.yml

Lines changed: 19 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -40,13 +40,29 @@ mysql_innodb_log_buffer_size: "8M"
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mysql_innodb_flush_log_at_trx_commit: "1"
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mysql_innodb_lock_wait_timeout: 50
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# mysqldump settings
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# mysqldump settings.
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mysql_mysqldump_max_allowed_packet: "64M"
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# mysqld_safe setting
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# Logging settings.
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mysql_log_error: /var/log/mysqld.log
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mysql_syslog_tag: mysqld
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# databases and users settings
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# Databases.
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mysql_databases: []
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# Full example:
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# mysql_databases:
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# - { name: example, collation: utf8_general_ci, encoding: utf8, replicate: 1 }
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# Users
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mysql_users: []
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# Full Example:
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# mysql_users:
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# - { name: example, host: 127.0.0.1, password: secret, priv: *.*:USAGE }
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# Replication settings (replication is only enabled if master/user have values).
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mysql_server_id: "1"
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mysql_max_binlog_size: "100M"
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mysql_replication_role: master
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mysql_replication_master: ''
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# Same keys as `mysql_users` above.
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mysql_replication_user: []

‎tasks/databases.yml

Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,8 @@
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---
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- name: Ensure MySQL databases are present.
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mysql_db:
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name: "{{ item.name }}"
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collation: "{{ item.collation | default('utf8_general_ci') }}"
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encoding: "{{ item.encoding | default('utf8') }}"
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state: present
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with_items: mysql_databases

‎tasks/main.yml

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -10,4 +10,6 @@
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- include: configure.yml
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- include: secure-installation.yml
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- include: databases-users.yml
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- include: databases.yml
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- include: users.yml
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- include: replication.yml

‎tasks/replication.yml

Lines changed: 51 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,51 @@
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---
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- name: Ensure replication user exists on master.
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mysql_user:
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name: "{{ mysql_replication_user.name }}"
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host: "{{ mysql_replication_user.host | default('%') }}"
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password: "{{ mysql_replication_user.password }}"
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priv: "{{ mysql_replication_user.priv | default('*.*:REPLICATION SLAVE') }}"
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state: present
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when: >
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(mysql_replication_role == 'master')
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and mysql_replication_user
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and (mysql_replication_master != '')
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- name: Check slave replication status.
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mysql_replication: mode=getslave
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ignore_errors: true
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register: slave
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when: >
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mysql_replication_role == 'slave'
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and (mysql_replication_master != '')
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- name: Check master replication status.
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mysql_replication: mode=getmaster
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delegate_to: "{{ mysql_replication_master }}"
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register: master
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when: >
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slave|failed
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and (mysql_replication_role == 'slave')
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and (mysql_replication_master != '')
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- name: Configure replication on the slave.
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mysql_replication:
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mode: changemaster
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master_host: "{{ mysql_replication_master }}"
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master_user: "{{ mysql_replication_user.name }}"
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master_password: "{{ mysql_replication_user.password }}"
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master_log_file: "{{ master.File }}"
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master_log_pos: "{{ master.Position }}"
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ignore_errors: True
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when: >
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slave|failed
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and (mysql_replication_role == 'slave')
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and (mysql_replication_master != '')
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and mysql_replication_user
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- name: Start replication.
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mysql_replication: mode=startslave
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when: >
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slave|failed
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and (mysql_replication_role == 'slave')
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and (mysql_replication_master != '')

‎tasks/databases-users.yml renamed to ‎tasks/users.yml

Lines changed: 0 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -1,12 +1,4 @@
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---
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- name: Ensure MySQL databases are present.
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mysql_db:
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name: "{{ item.name }}"
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collation: "{{ item.collation | default('utf8_general_ci') }}"
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encoding: "{{ item.encoding | default('utf8') }}"
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state: present
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with_items: mysql_databases
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- name: Ensure MySQL users are present.
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mysql_user:
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name: "{{ item.name }}"

‎templates/my.cnf.j2

Lines changed: 25 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -8,13 +8,34 @@ port = {{ mysql_port }}
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datadir = {{ mysql_datadir }}
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socket = {{ mysql_socket }}
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# Replication
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server-id = {{ mysql_server_id }}
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{% if mysql_replication_role == 'master' %}
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log_bin = mysql-bin
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log-bin-index = mysql-bin.index
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expire_logs_days = 10
18+
max_binlog_size = {{ mysql_max_binlog_size }}
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20+
{% for db in mysql_databases %}
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{% if db.replicate|default(1) %}
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binlog_do_db = {{ db.name }}
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{% else %}
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binlog_ignore_db = {{ db.name }}
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{% endif %}
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{% endfor %}
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{% endif %}
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29+
{% if mysql_replication_role == 'slave' %}
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read_only
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relay-log = relay-bin
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relay-log-index = relay-bin.index
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{% endif %}
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# Disabling symbolic-links is recommended to prevent assorted security risks
1236
symbolic-links = 0
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14-
# Settings user and group are ignored when systemd is used (fedora >= 15).
15-
# If you need to run mysqld under a different user or group,
16-
# customize your systemd unit file for mysqld according to the
17-
# instructions in http://fedoraproject.org/wiki/Systemd
38+
# User is ignored when systemd is used (fedora <= 15).
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user = mysql
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# http://dev.mysql.com/doc/refman/5.5/en/performance-schema.html

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