Setup with mysql 8.0

README.md

@@ -1,7 +1,9 @@
 Docker MySQL master-slave replication 
 ========================
 
-MySQL master-slave replication with using Docker. 
+MySQL 8.0 master-slave replication with using Docker. 
+
+Previous version based on MySQL 5.7 is available in [mysql5.7](https://github.com/vbabak/docker-mysql-master-slave/tree/mysql5.7) branch.
 
 ## Run
 
@@ -10,19 +12,19 @@ and after starting setup replication. See commands inside ./build.sh.
 
 #### Create 2 MySQL containers with master-slave row-based replication 
 
-```
+```bash
 ./build.sh
 ```
 
 #### Make changes to master
 
-```
+```bash
 docker exec mysql_master sh -c "export MYSQL_PWD=111; mysql -u root mydb -e 'create table code(code int); insert into code values (100), (200)'"
 ```
 
 #### Read changes from slave
 
-```
+```bash
 docker exec mysql_slave sh -c "export MYSQL_PWD=111; mysql -u root mydb -e 'select * from code \G'"
 ```
 
@@ -30,7 +32,7 @@ docker exec mysql_slave sh -c "export MYSQL_PWD=111; mysql -u root mydb -e 'sele
 
 #### Check Logs
 
-```
+```bash
 docker-compose logs
 ```
 
@@ -40,37 +42,37 @@ docker-compose logs
 
 #### Check running containers
 
-```
+```bash
 docker-compose ps
 ```
 
 #### Clean data dir
 
-```
+```bash
 rm -rf ./master/data/*
 rm -rf ./slave/data/*
 ```
 
 #### Run command inside "mysql_master"
 
-```
+```bash
 docker exec mysql_master sh -c 'mysql -u root -p111 -e "SHOW MASTER STATUS \G"'
 ```
 
 #### Run command inside "mysql_slave"
 
-```
+```bash
 docker exec mysql_slave sh -c 'mysql -u root -p111 -e "SHOW SLAVE STATUS \G"'
 ```
 
 #### Enter into "mysql_master"
 
-```
+```bash
 docker exec -it mysql_master bash
 ```
 
 #### Enter into "mysql_slave"
 
-```
+```bash
 docker exec -it mysql_slave bash
 ```

build.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-docker-compose down
+docker-compose down -v
 rm -rf ./master/data/*
 rm -rf ./slave/data/*
 docker-compose build
@@ -12,7 +12,7 @@ do
     sleep 4
 done
 
-priv_stmt='GRANT REPLICATION SLAVE ON *.* TO "mydb_slave_user"@"%" IDENTIFIED BY "mydb_slave_pwd"; FLUSH PRIVILEGES;'
+priv_stmt='CREATE USER "mydb_slave_user"@"%" IDENTIFIED BY "mydb_slave_pwd"; GRANT REPLICATION SLAVE ON *.* TO "mydb_slave_user"@"%"; 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 ";"'
@@ -21,15 +21,11 @@ do
     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=$CURRENT_POS; START SLAVE;"
+start_slave_stmt="CHANGE MASTER TO MASTER_HOST='mysql_master',MASTER_USER='mydb_slave_user',MASTER_PASSWORD='mydb_slave_pwd',MASTER_LOG_FILE='$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-compose.yml

@@ -1,7 +1,7 @@
 version: '3'
 services:
   mysql_master:
-    image: mysql:5.7
+    image: mysql:8.0
     env_file:
       - ./master/mysql_master.env
     container_name: "mysql_master"
@@ -15,7 +15,7 @@ services:
       - overlay
 
   mysql_slave:
-    image: mysql:5.7
+    image: mysql:8.0
     env_file:
       - ./slave/mysql_slave.env
     container_name: "mysql_slave"

master/conf/mysql.conf.cnf

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

slave/conf/mysql.conf.cnf

@@ -1,9 +1,8 @@
 [mysqld]
 
-skip-host-cache
 skip-name-resolve
+default_authentication_plugin = mysql_native_password
 
 server-id = 2
-relay-log = /var/log/mysql/mysql-relay-bin.log
-log_bin = /var/log/mysql/mysql-bin.log
+log_bin = 1
 binlog_do_db = mydb