Заработало

Makefile

@@ -1,14 +1,18 @@
 cdir = $(shell pwd)
 
 up:
-	sudo -S docker-compose -f ./cicd/docker-compose.yml up -d --build
+	docker-compose -f ./cicd/docker-compose.yml up -d --build
-
+	./cicd/init.sh
 down: shutdown clean
 
 shutdown:
-	sudo -S docker-compose -f ./cicd/docker-compose.yml down
+	docker-compose -f ./cicd/docker-compose.yml down
+	sudo docker rmi $$(sudo docker images -a | grep '<none>' | awk '{print $$3}')
 
 clean:
-	sudo docker rmi $(sudo docker images | grep '<none>' | awk '{print $3}')
+	rm -rf /opt/mysql_master/* ; \
+	rm -rf /opt/mysql_slave1/* ; \
+	rm -rf /opt/mysql_slave2/* ; \
+	sudo docker rmi $$(sudo docker images -a | grep '<none>' | awk '{print $$3}')
 
 .PHONY: up down

cicd/dbinit/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';

cicd/docker-compose.yml

@@ -8,38 +8,41 @@ services:
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: root
-      MYSQL_USER: app
-      MYSQL_PASSWORD: app
-      MYSQL_DATABASE: app
       MYSQL_PORT: 3306
       MYSQL_LOWER_CASE_TABLE_NAMES: 0
-    ports:
-      - 13306:3306
     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:
+  mysql_slave1:
     image: mysql:5.7
-    hostname: "mysql_slave"
+    hostname: "mysql_slave1"
-    container_name: mysql_slave
+    container_name: mysql_slave1
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: root
-      MYSQL_USER: app
-      MYSQL_PASSWORD: app
-      MYSQL_DATABASE: app
       MYSQL_PORT: 3306
       MYSQL_LOWER_CASE_TABLE_NAMES: 0
-    ports:
-      - 23306:3306
     depends_on:
       - mysql_master
     volumes:
-      - ./mysql/mysql_slave.conf:/etc/mysql/conf.d/mysql.conf.cnf
+      - ./mysql/mysql_slave1.conf:/etc/mysql/conf.d/mysql.conf.cnf
-      - /opt/mysql_slave:/var/lib/mysql
+      - /opt/mysql_slave1:/var/lib/mysql
-      - ./mysql/slave_init:/docker-entrypoint-initdb.d
+
+  mysql_slave2:
+    image: mysql:5.7
+    hostname: "mysql_slave2"
+    container_name: mysql_slave2
+    restart: always
+    environment:
+      MYSQL_ROOT_PASSWORD: root
+      MYSQL_PORT: 3306
+      MYSQL_LOWER_CASE_TABLE_NAMES: 0
+    depends_on:
+      - mysql_master
+    volumes:
+      - ./mysql/mysql_slave2.conf:/etc/mysql/conf.d/mysql.conf.cnf
+      - /opt/mysql_slave2:/var/lib/mysql
 
   app:
     build:
@@ -50,7 +53,7 @@ services:
       APP_SERVER_ADDRESS: 0.0.0.0
       APP_SERVER_PORT: 8080
       APP_DSN_HOST: mysql_master
-      APP_DSN_PORT: 13306
+      APP_DSN_PORT: 3306
       APP_DSN_USER: app
       APP_DSN_PASS: app
       APP_DSN_BASE: app

cicd/init.sh

@@ -1,59 +1,45 @@
 #!/bin/bash
 
-  mysql:
+until docker exec mysql_master sh -c 'export MYSQL_PWD=root; mysql -u root -e ";"'
-    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;'
+priv_stmt='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 "mydb_slave_user"@"%" IDENTIFIED BY "mydb_slave_pwd"; FLUSH PRIVILEGES;'
-docker exec mysql_master sh -c "export MYSQL_PWD=111; mysql -u root -e '$priv_stmt'"
+docker exec mysql_master sh -c "export MYSQL_PWD=root; mysql -u root -e '$priv_stmt'"
 
-until docker-compose exec mysql_slave sh -c 'export MYSQL_PWD=111; mysql -u root -e ";"'
+until docker exec mysql_slave1 sh -c 'export MYSQL_PWD=root; mysql -u root -e ";"'
 do
-    echo "Waiting for mysql_slave database connection..."
+    echo "Waiting for mysql_slave1 database connection..."
     sleep 4
 done
 
+until docker exec mysql_slave2 sh -c 'export MYSQL_PWD=root; mysql -u root -e ";"'
+do
+    echo "Waiting for mysql_slave2 database connection..."
+    sleep 4
+done
+
+priv_stmt='CREATE DATABASE IF NOT EXISTS app CHARACTER SET utf8 COLLATE utf8_general_ci; GRANT ALL ON app.* TO "app"@"%" IDENTIFIED BY "app"; FLUSH PRIVILEGES;'
+docker exec mysql_slave1 sh -c "export MYSQL_PWD=root; mysql -u root -e '$priv_stmt'"
+docker exec mysql_slave2 sh -c "export MYSQL_PWD=root; mysql -u root -e '$priv_stmt'"
+
 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"'`
+MS_STATUS=`docker exec mysql_master sh -c 'export MYSQL_PWD=root; mysql -u root -e "SHOW MASTER STATUS"' | grep mysq`
-CURRENT_LOG=`echo $MS_STATUS | awk '{print $6}'`
+CURRENT_LOG=`echo $MS_STATUS | awk '{print $1}'`
-CURRENT_POS=`echo $MS_STATUS | awk '{print $7}'`
+CURRENT_POS=`echo $MS_STATUS | awk '{print $2}'`
 
 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=$CURRENT_POS; START SLAVE;"
-start_slave_cmd='export MYSQL_PWD=111; mysql -u root -e "'
+start_slave_cmd='export MYSQL_PWD=root; mysql -u root -e "'
 start_slave_cmd+="$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'"
+docker exec mysql_slave1 sh -c "$start_slave_cmd"
+docker exec mysql_slave1 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW SLAVE STATUS \G' | grep Slave_"
+
+docker exec mysql_slave2 sh -c "$start_slave_cmd"
+docker exec mysql_slave2 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW SLAVE STATUS \G' | grep Slave_"

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

@@ -5,5 +5,5 @@ skip-name-resolve
 
 server-id = 1
 log_bin = /var/log/mysql/mysql-bin.log
-binlog_format = ROW
+# binlog_format = ROW
-binlog_do_db = mydb
+binlog_do_db = app

cicd/mysql/mysql_slave1.conf

@@ -3,7 +3,7 @@
 skip-host-cache
 skip-name-resolve
 
-server-id=2
+server-id = 2
-relay-log = /var/log/mysql/mysql-relay-bin.log
 log_bin = /var/log/mysql/mysql-bin.log
-binlog_do_db = mydb
+relay-log = /var/log/mysql/mysql-relay-bin.log
+binlog_do_db = app

cicd/mysql/mysql_slave2.conf

@@ -0,0 +1,9 @@
+[mysqld]
+
+skip-host-cache
+skip-name-resolve
+
+server-id = 3
+log_bin = /var/log/mysql/mysql-bin.log
+relay-log = /var/log/mysql/mysql-relay-bin.log
+binlog_do_db = app

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';

internal/application/application.go

@@ -19,7 +19,7 @@ func New(configFile, envPrefix string) (App, error) {
 		return App{}, fmt.Errorf("can't apply config: %w\n", err)
 	}
 
-	db, err := sql.Open("mysql", conf.DSN.User+":"+conf.DSN.Pass+"@tcp("+conf.DSN.Host+":"+conf.DSN.Port+")/"+conf.DSN.Base)
+	db, err := sql.Open("mysql", conf.DSN.User+":"+conf.DSN.Pass+"@tcp("+conf.DSN.Host+":"+conf.DSN.Port+")/"+conf.DSN.Base+"?charset=utf8&collation=utf8_unicode_ci")
 	if err != nil {
 		return App{}, err
 	}
@@ -60,7 +60,7 @@ func dbInit(db *sql.DB) error {
 			City varchar(255) DEFAULT NULL,
 			Interests varchar(255) DEFAULT NULL,
 			PRIMARY KEY (Id)
-		) ENGINE=InnoDB DEFAULT CHARSET=utf8`); err != nil {
+		) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE utf8_unicode_ci`); err != nil {
 		return err
 	}
 	if _, err := db.Exec(`CREATE TABLE IF NOT EXISTS relations (

pkg/dataset/generator.go

@@ -30,9 +30,13 @@ func NewPerson() (p Person) {
 		p.FirstName = womanNames[rand.Intn(len(womanNames))]
 		p.SecondName = secondNames[rand.Intn(len(secondNames))] + "а"
 	}
-	t := make([]byte, 16)
+	charSet := "abcdedfghijklmnopqrstABCDEFGHIJKLMNOP0123456789"
-	rand.Read(t)
+	var output strings.Builder
-	p.Password = string(t)
+	for i := 0; i < 16; i++ {
+		random := rand.Intn(len(charSet))
+		output.WriteString(string(charSet[random]))
+	}
+	p.Password = output.String()
 	p.City = cities[rand.Intn(len(cities))]
 	for i := 0; i < (rand.Intn(4) + 3); i++ {
 		p.Interests = append(p.Interests, interests[rand.Intn(len(interests))])