Вариант настройки групповой реплиации на основе образа actency/docker-mysql-replication

cicd/docker-compose.yml

@@ -2,7 +2,7 @@ version: '3'
 services:
 
   mysql_master:
-    image: mysql:5.7
+    image: actency/docker-mysql-replication:5.7
     hostname: "mysql_master"
     container_name: mysql_master
     restart: always
@@ -11,17 +11,14 @@ services:
       MYSQL_USER: app
       MYSQL_PASSWORD: app
       MYSQL_DATABASE: app
-      MYSQL_PORT: 3306
-      MYSQL_LOWER_CASE_TABLE_NAMES: 0
-    ports:
-      - 13306:3306
+      REPLICATION_USER: replication_user
+      REPLICATION_PASSWORD: myreplpassword
     volumes:
-      - ./mysql/mysql_master.conf:/etc/mysql/conf.d/mysql.conf.cnf
       - /opt/mysql_master:/var/lib/mysql
       - ./mysql/master_init:/docker-entrypoint-initdb.d
 
   mysql_slave:
-    image: mysql:5.7
+    image: actency/docker-mysql-replication:5.7
     hostname: "mysql_slave"
     container_name: mysql_slave
     restart: always
@@ -30,16 +27,13 @@ services:
       MYSQL_USER: app
       MYSQL_PASSWORD: app
       MYSQL_DATABASE: app
-      MYSQL_PORT: 3306
-      MYSQL_LOWER_CASE_TABLE_NAMES: 0
-    ports:
-      - 23306:3306
+      REPLICATION_USER: replication_user
+      REPLICATION_PASSWORD: myreplpassword
+      MASTER_HOST: mysql_master
     depends_on:
       - mysql_master
     volumes:
-      - ./mysql/mysql_slave.conf:/etc/mysql/conf.d/mysql.conf.cnf
       - /opt/mysql_slave:/var/lib/mysql
-      - ./mysql/slave_init:/docker-entrypoint-initdb.d
 
   app:
     build:

cicd/init.sh

@@ -1,59 +0,0 @@
-#!/bin/bash
-
-  mysql:
-    image: mysql:5.6
-    hostname: "mysql"
-    container_name: mysql
-    command: --default-authentication-plugin=mysql_native_password
-    restart: always
-    environment:
-      MYSQL_ROOT_PASSWORD: root
-      MYSQL_DATABASE: app
-      MYSQL_USER: app
-      MYSQL_PASSWORD: app
-    volumes:
-      - /opt/mysql:/var/lib/mysql
-      - ./dbinit:/docker-entrypoint-initdb.d
-    ports:
-      - "3306:3306"
-
-
-
-
-
-docker-compose down
-rm -rf ./master/data/*
-rm -rf ./slave/data/*
-docker-compose build
-docker-compose up -d
-
-until docker exec mysql_master sh -c 'export MYSQL_PWD=111; mysql -u root -e ";"'
-do
-    echo "Waiting for mysql_master database connection..."
-    sleep 4
-done
-
-priv_stmt='GRANT REPLICATION SLAVE ON *.* TO "mydb_slave_user"@"%" IDENTIFIED BY "mydb_slave_pwd"; FLUSH PRIVILEGES;'
-docker exec mysql_master sh -c "export MYSQL_PWD=111; mysql -u root -e '$priv_stmt'"
-
-until docker-compose exec mysql_slave sh -c 'export MYSQL_PWD=111; mysql -u root -e ";"'
-do
-    echo "Waiting for mysql_slave database connection..."
-    sleep 4
-done
-
-docker-ip() {
-    docker inspect --format '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$@"
-}
-
-MS_STATUS=`docker exec mysql_master sh -c 'export MYSQL_PWD=111; mysql -u root -e "SHOW MASTER STATUS"'`
-CURRENT_LOG=`echo $MS_STATUS | awk '{print $6}'`
-CURRENT_POS=`echo $MS_STATUS | awk '{print $7}'`
-
-start_slave_stmt="CHANGE MASTER TO MASTER_HOST='$(docker-ip mysql_master)',MASTER_USER='mydb_slave_user',MASTER_PASSWORD='mydb_slave_pwd',MASTER_LOG_FILE='$CURRENT_LOG',MASTER_LOG_POS=$CURRENT_POS; START SLAVE;"
-start_slave_cmd='export MYSQL_PWD=111; mysql -u root -e "'
-start_slave_cmd+="$start_slave_stmt"
-start_slave_cmd+='"'
-docker exec mysql_slave sh -c "$start_slave_cmd"
-
-docker exec mysql_slave sh -c "export MYSQL_PWD=111; mysql -u root -e 'SHOW SLAVE STATUS \G'"

cicd/mysql/master_init/init.sql

@@ -1,3 +0,0 @@
-CREATE DATABASE IF NOT EXISTS `app` CHARACTER SET utf8 COLLATE utf8_general_ci;
-GRANT ALL ON `app`.* TO 'app'@'%' identified by 'app';
-GRANT REPLICATION SLAVE ON *.* TO 'app'@'%' identified by 'app';

cicd/mysql/mysql_master.conf

@@ -1,9 +0,0 @@
-[mysqld]
-
-skip-host-cache
-skip-name-resolve
-
-server-id = 1
-log_bin = /var/log/mysql/mysql-bin.log
-binlog_format = ROW
-binlog_do_db = mydb

cicd/mysql/mysql_slave.conf

@@ -1,9 +0,0 @@
-[mysqld]
-
-skip-host-cache
-skip-name-resolve
-
-server-id=2
-relay-log = /var/log/mysql/mysql-relay-bin.log
-log_bin = /var/log/mysql/mysql-bin.log
-binlog_do_db = mydb

cicd/mysql/slave_init/init.sql

@@ -1,2 +0,0 @@
-CREATE DATABASE IF NOT EXISTS `app` CHARACTER SET utf8 COLLATE utf8_general_ci;
-GRANT ALL ON `app`.* TO 'app'@'%' identified by 'app';