提交各组件部署Ansible剧本初版

MariaDB/10.5.3/mariadb/hosts

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+[mariadb]
+192.168.45.102

MariaDB/10.5.3/mariadb/install.yml

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+- hosts: mariadb
+  remote_user: root
+  roles:
+   - role
+  vars_files:
+   - role/vars/main.yml
+

MariaDB/10.5.3/mariadb/role/defaults/main.yml

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+#The default installation location
+deploy_dir: /data/olap
+
+#The default data storage location,use storing application data,logs and configuration files
+data_dir: /data/olap
+
+mariadb:
+  #Used to cache data and index data from tables in the InnoDB storage engine.
+  innodb_buffer_pool_size: 2048

MariaDB/10.5.3/mariadb/role/handlers/main.yml

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+- name: Loading Image
+  docker_image:
+    name: '{{ image_name }}'
+    tag: '{{ image_tag }}'
+    load_path: '{{ deploy_dir }}/{{ container_name }}/{{ image_name }}-{{ image_tag }}.tar'
+    source: load
+    force_tag: yes
+    force_source: yes
+    timeout: 300
+
+- name: Start Container
+  docker_compose:
+    project_src: '{{ deploy_dir }}/{{ container_name }}/'
+
+- name: Loading Exporter Image
+  docker_image:
+    name: 'mysqld_exporter'
+    tag: 'v1.0'
+    load_path: '{{ deploy_dir }}/{{ container_name }}/monitor/mysqld_exporter-v1.0.tar'
+    source: load
+    force_tag: yes
+    force_source: yes
+    timeout: 300
+
+- name: Start Exporter Container
+  docker_compose:
+    project_src: '{{ deploy_dir }}/{{ container_name }}/monitor/'
+
+

MariaDB/10.5.3/mariadb/role/tasks/deploy-cluster.yml

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+- name: Setting node_nums variable
+  set_fact: node_nums={{ groups.mariadb|length }}
+
+- name: To terminate execution
+  fail:
+    msg: "MariaDB in master-master mode. The value must have 2 nodes,please checking configurations/hosts -> mariadb"
+  when: node_nums != '2'
+
+- name: Creating directory
+  file:
+    state: directory
+    owner: ods
+    group: root    
+    path: '{{ deploy_dir }}/{{ container_name }}/{{ item.dir }}'
+  with_items:
+    - { dir: 'config' }
+    - { dir: 'logs' }  
+    - { dir: 'monitor' }  
+    
+- name: Copying image to {{ deploy_dir }}/{{ container_name }}/
+  copy:
+    src: 'files/{{ image_name }}-{{ image_tag }}.tar'
+    dest: '{{ deploy_dir }}/{{ container_name }}/'
+    force: true
+  notify:
+    - Loading Image
+
+- name: Copying image to {{ deploy_dir }}/{{ container_name }}/monitor
+  copy:
+    src: 'files/mysqld_exporter-v1.0.tar'
+    dest: '{{ deploy_dir }}/{{ container_name }}/monitor/'
+    force: true
+  notify:
+    - Loading Exporter Image
+
+- name: Copying Mariadb config files
+  template:
+    src: '{{ item.src }}'
+    dest: '{{ item.dest }}'
+    mode: 0644
+  with_items:
+    - { src: 'my.cnf.j2', dest: '{{ deploy_dir }}/{{ container_name }}/config/my.cnf' }
+    - { src: 'docker-compose.yml.j2', dest: '{{ deploy_dir }}/{{ container_name }}/docker-compose.yml' }
+  notify:
+    - Start Container
+
+- meta: flush_handlers    
+    
+- name: Waitting for MariaDB running,20s
+  shell: sleep 20
+
+- name: Creating mariadb readonly user
+  shell: mysql -uroot -h{{ inventory_hostname }} -p{{ mariadb_default_pin }} -e "CREATE USER IF NOT EXISTS '{{ mariadb_query_username}}'@'%' IDENTIFIED BY '{{ mariadb_query_pin }}' WITH MAX_USER_CONNECTIONS 3;GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO '{{ mariadb_query_username}}'@'%';FLUSH PRIVILEGES;"
+  
+- name: change mariadb remote authority
+  shell: mysql -uroot -h{{ inventory_hostname }} -p{{ mariadb_default_pin }} -e"use mysql;grant all privileges on *.* to 'root'@'%' identified by '{{ mariadb_default_pin }}' with grant option;FLUSH PRIVILEGES;"
+
+- name: copy pyMysql.zip
+  unarchive: 
+    src: files/pyMysql.zip 
+    dest: /tmp/
+  register: copy_info
+
+- name: pip install pyMysql
+  shell: cd /tmp/pyMysql && pip install --ignore-installed *
+  when: copy_info.changed
+
+- name: Get mariadb slave_status
+  mysql_info:
+    login_host: '{{ groups.mariadb[0] }}'
+    login_user: root
+    login_password: '{{ mariadb_default_pin }}'
+    filter: slave_status
+  register: mariadb_info
+
+- name: change_slave_to_master1
+  mysql_replication:
+    login_unix_socket: "{{ deploy_dir }}/{{ container_name }}/data/mysql.sock"
+    login_host: "{{ groups.mariadb[1] }}"
+    login_port: "3306"
+    login_user: root
+    login_password: "{{ mariadb_default_pin }}"
+    master_host: "{{ groups.mariadb[0] }}"
+    master_user: root
+    master_password: "{{ mariadb_default_pin }}"
+    master_port: "3306"
+    mode: changemaster
+  run_once: true
+  delegate_to: '{{ groups.mariadb[1] }}'
+  tags:
+    - change_slave_to_master1
+
+- name: start_slave1
+  mysql_replication:
+    login_unix_socket: "{{ deploy_dir }}/{{ container_name }}/data/mysql.sock"
+    login_user: root
+    login_host: "{{ inventory_hostname }}"
+    login_port: "3306"
+    login_password: "{{ mariadb_default_pin }}"
+    mode: startslave
+  tags:
+    - start_slave1
+  run_once: true
+  delegate_to: '{{ groups.mariadb[1] }}'
+
+- name: change_slave_to_master2
+  mysql_replication:
+    login_unix_socket: "{{ deploy_dir }}/{{ container_name }}/data/mysql.sock"
+    login_host: "{{ groups.mariadb[0] }}"
+    login_port: "3306"
+    login_user: root
+    login_password: "{{ mariadb_default_pin }}"
+    master_host: "{{ groups.mariadb[1] }}"
+    master_user: root
+    master_password: "{{ mariadb_default_pin }}"
+    master_port: "3306"
+    mode: changemaster
+  run_once: true
+  delegate_to: '{{ groups.mariadb[0] }}'
+  tags:
+    - change_slave_to_master2
+
+- name: start_slave2
+  mysql_replication:
+    login_unix_socket: "{{ deploy_dir }}/{{ container_name }}/data/mysql.sock"
+    login_user: root
+    login_host: "{{ inventory_hostname }}"
+    login_port: "3306"
+    login_password: "{{ mariadb_default_pin }}"
+    mode: startslave
+  tags:
+    - start_slave2
+  run_once: true
+  delegate_to: '{{ groups.mariadb[0] }}'
+ 
+- name: get_slave_info
+  mysql_replication:
+    login_host: 127.0.0.1
+    login_user: root
+    login_port: "3306"
+    login_password: "{{ mariadb_default_pin }}"
+    mode: getslave
+  register: info
+  tags:
+    - get_slave_info
+
+- name: Copying Mariadb config files
+  template:
+    src: 'exporter_docker-compose.yml.j2'
+    dest: '{{ deploy_dir }}/{{ container_name }}/monitor/docker-compose.yml'
+    mode: 0644
+  notify:
+    - Start Exporter Container    

MariaDB/10.5.3/mariadb/role/tasks/deploy-standalone.yml

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+- name: Setting node_nums variable
+  set_fact: node_nums={{ groups.mariadb|length }}
+
+- name: To terminate execution
+  fail:
+    msg: "MariaDB standalone mode. The value must have 1 nodes,please checking configurations/hosts -> mariadb"
+  when: node_nums != '1'
+
+- name: Creating directory
+  file:
+    state: directory
+    owner: ods
+    group: root    
+    path: '{{ deploy_dir }}/{{ container_name }}/{{ item.dir }}'
+  with_items:
+    - { dir: 'config' }
+    - { dir: 'logs' }  
+    - { dir: 'monitor' }  
+    
+- name: Copying image to {{ deploy_dir }}/{{ container_name }}/
+  copy:
+    src: 'files/{{ image_name }}-{{ image_tag }}.tar'
+    dest: '{{ deploy_dir }}/{{ container_name }}/'
+    force: true
+  notify:
+    - Loading Image
+
+- name: Copying image to {{ deploy_dir }}/{{ container_name }}/monitor
+  copy:
+    src: 'files/mysqld_exporter-v1.0.tar'
+    dest: '{{ deploy_dir }}/{{ container_name }}/monitor/'
+    force: true
+  notify:
+    - Loading Exporter Image
+    
+- name: Copying Mariadb config files
+  template:
+    src: '{{ item.src }}'
+    dest: '{{ item.dest }}'
+    mode: 0644
+  with_items:
+    - { src: 'my.cnf.j2', dest: '{{ deploy_dir }}/{{ container_name }}/config/my.cnf' }
+    - { src: 'docker-compose.yml.j2', dest: '{{ deploy_dir }}/{{ container_name }}/docker-compose.yml' }
+  notify:
+    - Start Container
+
+- meta: flush_handlers    
+    
+- name: Waitting for MariaDB running,20s
+  shell: sleep 20
+
+- name: Creating mariadb readonly user
+  shell: mysql -uroot -h{{ inventory_hostname }} -p{{ mariadb_default_pin }} -e "CREATE USER IF NOT EXISTS '{{ mariadb_query_username}}'@'%' IDENTIFIED BY '{{ mariadb_query_pin }}' WITH MAX_USER_CONNECTIONS 3;GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO '{{ mariadb_query_username}}'@'%';FLUSH PRIVILEGES;"
+  
+- name: change mariadb remote authority
+  shell: mysql -uroot -h{{ inventory_hostname }} -p{{ mariadb_default_pin }} -e"use mysql;grant all privileges on *.* to 'root'@'%' identified by '{{ mariadb_default_pin }}' with grant option;FLUSH PRIVILEGES;"
+
+- name: Copying Mariadb config files
+  template:
+    src: 'exporter_docker-compose.yml.j2'
+    dest: '{{ deploy_dir }}/{{ container_name }}/monitor/docker-compose.yml'
+    mode: 0644
+  notify:
+    - Start Exporter Container
+
+- meta: flush_handlers

MariaDB/10.5.3/mariadb/role/tasks/main.yml

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+- block: 
+    - include: uninstall.yml
+    - include: "{{ playbook_name }}"
+      vars:
+        playbook_name: "{{ 'deploy-cluster.yml' if groups.mariadb | length > 1 else 'deploy-standalone.yml' }}"
+    - include: status-check.yml
+  when: (operation) == "install"
+
+- block:
+    - include: uninstall.yml
+  when: (operation) == "uninstall"

MariaDB/10.5.3/mariadb/role/tasks/status-check.yml

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+- name: Check if the MariaDB already exists
+  shell: ps -ef | grep -v mysqld_exporter | grep -v grep | grep mysqld | wc -l
+  register: process_out
+  
+- name: Check if the MariaDB already exists
+  shell: netstat -anlp | egrep "3306" | grep LISTEN | wc -l
+  register: port_out
+
+- name: To terminate execution
+  fail:
+   msg: "MariaDB on node {{ inventory_hostname }} is not started. Please check"
+  run_once: true
+  delegate_to: 127.0.0.1 
+  when: process_out.stdout != '1' or port_out.stdout != '1'

MariaDB/10.5.3/mariadb/role/tasks/uninstall.yml

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+- block: 
+    - name: Stopping and removing {{ container_name }} container
+      docker_container:
+        name: '{{ container_name }}'
+        state: absent
+    
+    - name: Removing old {{ image_name }} image
+      docker_image:
+        name: '{{ image_name }}'
+        tag: '{{ image_tag }}'
+        state: absent
+
+    - name: Stopping and removing exporter container
+      docker_container:
+        name: 'mysqld_exporter'
+        state: absent
+
+    - name: Removing old exporter image
+      docker_image:
+        name: 'mysqld_exporter'
+        tag: 'v1.0'
+        state: absent
+
+    - name: Ansible delete old {{ deploy_dir }}/{{ container_name }}
+      file:
+        path: '{{ deploy_dir }}/{{ container_name }}'
+        state: absent

MariaDB/10.5.3/mariadb/role/templates/docker-compose.yml.j2

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+version: "3.7"
+
+services:
+  mariadb:
+    image: {{ image_name }}:{{ image_tag }}
+    container_name: {{ container_name }}
+    restart: always
+    environment:
+      - MYSQL_ROOT_PASSWORD={{ mariadb_default_pin }}
+    volumes:
+      - {{ deploy_dir }}/{{ container_name }}/data:/opt/mariadb/data
+      - {{ deploy_dir }}/{{ container_name }}/logs:/opt/mariadb/logs
+      - {{ deploy_dir }}/{{ container_name }}/config/my.cnf:/etc/mysql/my.cnf
+    network_mode: "host"
+

MariaDB/10.5.3/mariadb/role/templates/exporter_docker-compose.yml.j2

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+version: '3'
+services:
+   mysql_exporter:
+    image: mysqld_exporter:v1.0
+    container_name: mysqld_exporter
+    restart: always
+    ports:
+      - 9911:9104
+    hostname: mysqld_exporter
+    environment:
+      - DATA_SOURCE_NAME=tsg_query:{{ mariadb_query_pin }}@({{ inventory_hostname }}:3306)/
+    networks:
+      olap:
+        ipv4_address: 172.20.88.6
+networks:
+  olap:
+    external: true

MariaDB/10.5.3/mariadb/role/templates/keepalived/check_mariadb.sh.j2

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+#!/bin/bash
+
+PORT_CHECK=$(netstat -anlp | grep 3306 | grep LISTEN | grep mysqld | grep -v grep | wc -l)
+
+if [[ $PORT_CHECK -eq 0 ]];then
+  echo "`date "+%Y-%m-%d %H:%M:%S"` - Mariadb 端口未监听，服务异常" >> /etc/keepalived/keepalived_check.log
+  exit 1
+fi
+
+SQL_CHECK=`mysql -h{{inventory_hostname}} -utsg_query -p{{mariadb_query_pin}} -e "SELECT 'ok' AS OK;"`
+
+if [[ $? -ne '0' ]];then
+  echo "`date "+%Y-%m-%d %H:%M:%S"` - Mariadb SQL执行失败，服务状态异常" >> /etc/keepalived/keepalived_check.log
+  exit 1
+fi

MariaDB/10.5.3/mariadb/role/templates/keepalived/keepalived-mariadb.conf.j2

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+#mariadb Load balancing start
+vrrp_script chk_mariadb {
+    script "/etc/keepalived/check_mariadb.sh"
+    #每2s检查一次
+    interval 2
+    #每次检查-20
+    weight -20
+}
+
+#VRRP实例定义块
+vrrp_instance VI_MARIADB {
+{% if inventory_hostname == groups.mariadb[0] %}
+#状态只有MASTER和BACKUP两种，并且要大写，MASTER为工作状态，BACKUP是备用状态。
+state MASTER
+#优先级，同一个vrrp_instance的MASTER优先级必须比BACKUP高。
+priority 150
+{% elif inventory_hostname == groups.mariadb[1] %}
+#状态只有MASTER和BACKUP两种，并且要大写，MASTER为工作状态，BACKUP是备用状态。
+state BACKUP
+#优先级，同一个vrrp_instance的MASTER优先级必须比BACKUP高。
+priority 100
+{% endif %}
+#网卡名称
+interface {{ ansible_default_ipv4.interface }}
+#虚拟路由标识，同一个vrrp_instance的MASTER和BACKUP的vitrual_router_id 是一致的。
+virtual_router_id 66
+#MASTER 与BACKUP 负载均衡器之间同步检查的时间间隔，单位为秒。
+advert_int 1
+authentication {
+#验证authentication。包含验证类型和验证密码。类型主要有PASS、AH 两种，通常使用的类型为PASS
+auth_type PASS
+#据说AH 使用时有问题。验证密码为明文，同一vrrp 实例MASTER 与BACKUP 使用相同的密码才能正常通信
+auth_pass 1111
+}
+#触发的脚本
+track_script {
+#检测脚本，上面配置的
+    chk_mariadb
+}
+virtual_ipaddress {
+#虚拟ip地址,可以有多个地址，每个地址占一行，不需要子网掩码
+    {{ mariadb_virtual_ipaddress }}
+}
+}
+#mariadb Load balancing end
+
+
+

MariaDB/10.5.3/mariadb/role/templates/keepalived/unload_balancer.sh.j2

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+#!/bin/bash
+
+function del_ipaddr(){
+keepHostCheck=`ip address show {{ vrrp_instance.default.interface  }} | grep "{{ vrrp_instance.default.virtual_ipaddress }}" | wc -l`
+if [ $keepHostCheck -eq "1" ];then
+  ip address del {{ vrrp_instance.default.virtual_ipaddress }} dev {{ vrrp_instance.default.interface }}
+fi
+}
+
+
+if [ -f "/etc/keepalived/conf.d/keepalived-mariadb.conf" ];then
+  rm -rf /etc/keepalived/check_mariadb.sh
+  rm -rf /etc/keepalived/conf.d/keepalived-mariadb.conf
+  service keepalived stop && systemctl daemon-reload && sleep 3 && service keepalived start
+  del_ipaddr
+else
+  del_ipaddr
+fi

MariaDB/10.5.3/mariadb/role/templates/my.cnf.j2

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+# Example MariaDB config file for very large systems.
+#
+# This is for a large system with memory of 1G-2G where the system runs mainly
+# MariaDB.
+#
+# MariaDB programs look for option files in a set of
+# locations which depend on the deployment platform.
+# You can copy this option file to one of those
+# locations. For information about these locations, do:
+# 'my_print_defaults --help' and see what is printed under
+# Default options are read from the following files in the given order:
+# More information at: http://dev.mysql.com/doc/mysql/en/option-files.html
+#
+# In this file, you can use all long options that a program supports.
+# If you want to know which options a program supports, run the program
+# with the "--help" option.
+
+# The following options will be passed to all MySQL clients
+[client]
+#password	= your_password
+port		= 3306
+socket		= /opt/mariadb/data/mysql.sock
+
+# Here follows entries for some specific programs
+
+# The MySQL server
+[mysqld]
+default-time_zone='+0:00'
+port = 3306
+datadir = /opt/mariadb/data
+socket = /opt/mariadb/data/mysql.sock
+skip-external-locking
+key_buffer_size = 384M
+max_allowed_packet = 1M
+table_open_cache = 512
+sort_buffer_size = 2M
+read_buffer_size = 2M
+read_rnd_buffer_size = 8M
+myisam_sort_buffer_size = 64M
+thread_cache_size = 8
+query_cache_size = 32M
+# Try number of CPU's*2 for thread_concurrency
+thread_concurrency = 8
+
+innodb_file_per_table = on	#为每个表都创建分区
+skip_name_resolve = on	#跳过域名解析
+lower_case_table_names = 1	#忽略表名大小写
+character-set-server = utf8mb4	#数据库编码
+character-set-client = utf8mb4	
+slow_query_log
+long_query_time = 0.1
+#mysql连接数设置
+max_connections=5000
+log_error=/opt/mariadb/logs/log_error.log
+slow_query_log_file = /opt/mariadb/logs/slow_query.log
+innodb_log_file_size = 512M
+innodb_flush_method = O_DIRECT
+innodb_log_files_in_group = 3
+innodb_buffer_pool_size = {{ mariadb.innodb_buffer_pool_size }}
+innodb_buffer_pool_instances = 4
+socket = /opt/mariadb/data/mysql.sock
+skip-external-locking
+key_buffer_size = 384M
+max_allowed_packet = 128M
+table_open_cache = 1024
+sort_buffer_size = 2M
+read_buffer_size = 2M
+read_rnd_buffer_size = 8M
+myisam_sort_buffer_size = 64M
+thread_cache_size = 8
+query_cache_size = 32M
+thread_concurrency = 16 #线程数量，推荐为cpu和核数的2倍
+bulk_insert_buffer_size=100M
+
+slave_skip_errors = 1062
+
+# Point the following paths to a dedicated disk
+#tmpdir		= /tmp/
+
+# Don't listen on a TCP/IP port at all. This can be a security enhancement,
+# if all processes that need to connect to mysqld run on the same host.
+# All interaction with mysqld must be made via Unix sockets or named pipes.
+# Note that using this option without enabling named pipes on Windows
+# (via the "enable-named-pipe" option) will render mysqld useless!
+# 
+#skip-networking
+
+# Replication Master Server (default)
+# binary logging is required for replication
+log-bin=mysql-bin
+
+# required unique id between 1 and 2^32 - 1
+# defaults to 1 if master-host is not set
+# but will not function as a master if omitted
+
+server-id = {{ groups['mariadb'].index(inventory_hostname) +1 }}
+auto_increment_increment = {{ groups.mariadb|length }}   #步进值auto_imcrement。一般有n台主MySQL就填n
+auto_increment_offset = {{ groups['mariadb'].index(inventory_hostname) +1 }}   #起始值。一般填第n台主MySQL。此时为第一台主MySQL
+
+log_slave_updates=on
+
+binlog-ignore-db = mysql
+binlog-ignore-db = performance_schema
+binlog-ignore-db = information_schema
+
+# Replication Slave (comment out master section to use this)
+#
+# To configure this host as a replication slave, you can choose between
+# two methods :
+#
+# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
+#    the syntax is:
+#
+#    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
+#    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
+#
+#    where you replace <host>, <user>, <password> by quoted strings and
+#    <port> by the master's port number (3306 by default).
+#
+#    Example:
+#
+#    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
+#    MASTER_USER='joe', MASTER_PASSWORD='secret';
+#
+# OR
+#
+# 2) Set the variables below. However, in case you choose this method, then
+#    start replication for the first time (even unsuccessfully, for example
+#    if you mistyped the password in master-password and the slave fails to
+#    connect), the slave will create a master.info file, and any later
+#    change in this file to the variables' values below will be ignored and
+#    overridden by the content of the master.info file, unless you shutdown
+#    the slave server, delete master.info and restart the slaver server.
+#    For that reason, you may want to leave the lines below untouched
+#    (commented) and instead use CHANGE MASTER TO (see above)
+#
+# required unique id between 2 and 2^32 - 1
+# (and different from the master)
+# defaults to 2 if master-host is set
+# but will not function as a slave if omitted
+#server-id       = 2
+#
+# The replication master for this slave - required
+#master-host     =   <hostname>
+#
+# The username the slave will use for authentication when connecting
+# to the master - required
+#master-user     =   <username>
+#
+# The password the slave will authenticate with when connecting to
+#master-password =   <password>
+#
+# The port the master is listening on.
+# optional - defaults to 3306
+#master-port     =  <port>
+#
+# binary logging - not required for slaves, but recommended
+#log-bin=mysql-bin
+#
+# binary logging format - mixed recommended 
+#binlog_format=mixed
+
+# Uncomment the following if you are using InnoDB tables
+#innodb_data_home_dir = /usr/local/mysql/data
+#innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend
+#innodb_log_group_home_dir = /usr/local/mysql/data
+# You can set .._buffer_pool_size up to 50 - 80 %
+# of RAM but beware of setting memory usage too high
+#innodb_buffer_pool_size = 384M
+# Set .._log_file_size to 25 % of buffer pool size
+#innodb_log_file_size = 100M
+#innodb_log_buffer_size = 8M
+innodb_flush_log_at_trx_commit = 1
+innodb_lock_wait_timeout = 300
+sync_binlog=1
+
+relay-log=relay-bin
+relay-log-index=relay-bin-index
+slave-skip-errors=all
+
+[mysqldump]
+quick
+max_allowed_packet = 256M
+
+[mysql]
+no-auto-rehash
+# Remove the next comment character if you are not familiar with SQL
+#safe-updates
+
+[myisamchk]
+key_buffer_size = 256M
+sort_buffer_size = 256M
+read_buffer = 2M
+write_buffer = 2M
+
+[mysqlhotcopy]
+interactive-timeout
+

MariaDB/10.5.3/mariadb/role/vars/main.yml

@@ -0,0 +1,9 @@
+#镜像名称
+image_name: mariadb
+
+#镜像版本号
+image_tag: 10.5.3
+
+#容器名称
+container_name: mariadb
+