initial commit

Author: vthanhtai

.env.example

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+MYSQL_DATABASE=test_db
+MYSQL_ROOT_PASSWORD=123456
+MYSQL_USER=test_user
+MYSQL_PASSWORD=123456
+
+SUBNET=172.30.0.0/16
+
+MASTER_PORT=3311
+MASTER_IP=172.30.0.2
+
+SLAVE_PORT=3309
+SLAVE_IP=172.30.0.3

.gitignore

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+.env
+
+.idea/*

app/.gitignore

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+[mysqld]
+bind-address = 172.30.0.2
+server-id = 1
+
+log-bin
+binlog-format=row

config/master/cus.cnf

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+[mysqld]
+bind-address = 172.30.0.3
+server-id = 2
+
+log-bin
+binlog-format=row
+transaction-isolation=read-committed

config/slave/cus.cnf

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+version: '3'
+services:
+
+  # MySQL Service
+  mysql_master:
+    image: mysql:5.7.22
+    restart: unless-stopped
+    tty: true
+    ports:
+      - "${MASTER_PORT}:3306"
+    volumes:
+      - masterData:/var/lib/mysql
+      - ./config/master/cus.cnf:/etc/mysql/conf.d/mysql.conf.cnf
+      - ./app:/var/www
+    environment:
+      MYSQL_DATABASE: ${MYSQL_DATABASE}
+      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
+      MYSQL_USER: ${MYSQL_USER}
+      MYSQL_PASSWORD: ${MYSQL_PASSWORD}
+    networks:
+      database-network:
+        ipv4_address: ${MASTER_IP}
+    deploy:
+      resources:
+        limits:
+          cpus: '1'
+          memory: 1024M
+        reservations:
+          memory: 256M
+
+  mysql_slave:
+    image: mysql:5.7.22
+    restart: unless-stopped
+    tty: true
+    ports:
+      - "${SLAVE_PORT}:3306"
+    volumes:
+      - slaveData:/var/lib/mysql
+      - ./config/slave/cus.cnf:/etc/mysql/conf.d/cus.cnf
+      - ./app:/var/www
+    environment:
+      MYSQL_DATABASE: ${MYSQL_DATABASE}
+      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
+      MYSQL_USER: ${MYSQL_USER}
+      MYSQL_PASSWORD: ${MYSQL_PASSWORD}
+    depends_on:
+      - mysql_master
+    networks:
+      database-network:
+        ipv4_address: ${SLAVE_IP}
+    deploy:
+      resources:
+        limits:
+          cpus: '1'
+          memory: 1024M
+        reservations:
+          memory: 256M
+
+networks:
+  database-network:
+    driver: bridge
+    ipam:
+      config:
+        - subnet: ${SUBNET}
+#Volumes
+volumes:
+  masterData:
+    driver: local
+  slaveData:
+      driver: local

docker-compose.yml

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+#Docker MySql Master Slave
+
+### Install
+
+Create `.env` file with keys or move `.env.example` to `.env` and edit it. 
+ 
+ ```
+MYSQL_DATABASE=
+MYSQL_ROOT_PASSWORD=
+MYSQL_USER=
+MYSQL_PASSWORD=
+
+SUBNET=172.30.0.0/16
+MASTER_PORT=
+MASTER_IP=
+
+SLAVE_PORT=
+SLAVE_IP=
+
+
+```
+
+Change `bind-address` on `config/master/cus.cnf` to your master IP and change `bind-address` on `config/slave/cus.cnf` to your slave IP.
+
+> If you want more configuration, you can add these 2 files
+
+Run command:
+
+```
+docker-compose up -d mysql_master mysql-salve
+```
+
+### Config MySql.
+
+You need login to mysql container then login to mysql console.
+
+#### On MySql Master
+
+On MySql console run below command:
+
+```
+HOW MASTER STATUS;
+```
+
+The result should look like below:
+
+```
+mysql> show master status;
++-------------------------+----------+--------------+------------------+-------------------+
+| File                    | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
++-------------------------+----------+--------------+------------------+-------------------+
+| 55ee2c9739f6-bin.000003 |      816 |              |                  |                   |
++-------------------------+----------+--------------+------------------+-------------------+
+1 row in set (0.00 sec)
+
+```
+
+You need to pay attention to the following parameters:
+
+```
+55ee2c9739f6-bin.000003
+
+816
+```
+
+#### On MySql Slave
+
+On MySql console run below command:
+
+```
+CHANGE MASTER TO MASTER_HOST='172.30.0.2',MASTER_USER='slave_user', MASTER_PASSWORD='123456', MASTER_LOG_FILE='55ee2c9739f6-bin.000003', MASTER_LOG_POS=816;
+```
+
+With `55ee2c9739f6-bin.000003` and `816` is output of the mysql master command.
+
+Continue to run the following command.
+
+```
+START SLAVE;
+```
+
+Finish. You can check status by command:
+
+```
+SHOW SLAVE STATUS;
+```