Initial files -docker-compose setup for MySQL InnoDB Cluster

Author: bkandasa

docker-compose.yml

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+version: '3'
+services:
+  mysql-server-1:
+    env_file:
+      - mysql-server.env
+    image: mysql/mysql-server:8.0.13
+    ports:
+      - "3301:3306"
+    command: ["mysqld","--server_id=1","--binlog_checksum=NONE","--gtid_mode=ON","--enforce_gtid_consistency=ON","--log_bin","--log_slave_updates=ON","--master_info_repository=TABLE","--relay_log_info_repository=TABLE","--transaction_write_set_extraction=XXHASH64","--user=mysql","--skip-host-cache","--skip-name-resolve", "--default_authentication_plugin=mysql_native_password"]
+  mysql-server-2:
+    env_file:
+      - mysql-server.env
+    image: mysql/mysql-server:8.0.13
+    command: ["mysqld","--server_id=2","--binlog_checksum=NONE","--gtid_mode=ON","--enforce_gtid_consistency=ON","--log_bin","--log_slave_updates=ON","--master_info_repository=TABLE","--relay_log_info_repository=TABLE","--transaction_write_set_extraction=XXHASH64","--user=mysql","--skip-host-cache","--skip-name-resolve", "--default_authentication_plugin=mysql_native_password"]
+    ports:
+      - "3302:3306"
+  mysql-server-3:
+    env_file:
+      - mysql-server.env
+    image: mysql/mysql-server:8.0.13
+    command: ["mysqld","--server_id=3","--binlog_checksum=NONE","--gtid_mode=ON","--enforce_gtid_consistency=ON","--log_bin","--log_slave_updates=ON","--master_info_repository=TABLE","--relay_log_info_repository=TABLE","--transaction_write_set_extraction=XXHASH64","--user=mysql","--skip-host-cache","--skip-name-resolve", "--default_authentication_plugin=mysql_native_password"]
+    ports:
+      - "3303:3306"
+  mysql-shell:
+    env_file:
+      - mysql-shell.env
+    image: bkandasa/mysql-shell-batch
+    volumes:
+        - ./scripts/:/scripts/
+    depends_on:
+      - mysql-server-1
+      - mysql-server-2
+      - mysql-server-3
+  mysql-router:
+    env_file:
+      - mysql-router.env
+    image: mysql/mysql-router:8.0.13
+    ports:
+      - "6446:6446"
+    depends_on:
+      - mysql-server-1
+      - mysql-server-2
+      - mysql-server-3
+      - mysql-shell
+    restart: on-failure
+  wordpress:
+    env_file:
+      - wordpress.env
+    image: wordpress:latest 
+    ports:
+      - "8080:80"
+    depends_on:
+      - mysql-router

mysql-router.env

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+MYSQL_USER=root
+MYSQL_HOST=mysql-server-1
+MYSQL_PORT=3306
+MYSQL_PASSWORD=mysql
+MYSQL_INNODB_NUM_MEMBERS=3

mysql-server.env

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+MYSQL_ROOT_PASSWORD=mysql
+MYSQL_ROOT_HOST=%

mysql-shell.env

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+MYSQL_USER=root
+MYSQL_HOST=mysql-server-1
+MYSQL_PORT=3306
+MYSQL_PASSWORD=mysql
+MYSQLSH_SCRIPT=/scripts/setupCluster.js
+MYSQL_SCRIPT=/scripts/db.sql

scripts/db.sql

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+CREATE DATABASE fossasiadb;
+CREATE USER 'fossasia'@'%' IDENTIFIED BY 'fossasia';
+GRANT ALL PRIVILEGES ON fossasiadb.* TO 'fossasia'@'%';

scripts/setupCluster.js

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+var dbPass = "mysql"
+var clusterName = "devCluster"
+
+try {
+  print('Setting up InnoDB cluster...\n');
+  shell.connect('root@mysql-server-1:3306', dbPass)
+  var cluster = dba.createCluster(clusterName);
+  print('Adding instances to the cluster.');
+  cluster.addInstance({user: "root", host: "mysql-server-2", password: dbPass})
+  print('.');
+  cluster.addInstance({user: "root", host: "mysql-server-3", password: dbPass})
+  print('.\nInstances successfully added to the cluster.');
+  print('\nInnoDB cluster deployed successfully.\n');
+} catch(e) {
+  print('\nThe InnoDB cluster could not be created.\n\nError: ' + e.message + '\n');
+}

wordpress.env

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+WORDPRESS_DB_HOST: mysql-router:6446
+WORDPRESS_DB_USER: fossasia
+WORDPRESS_DB_PASSWORD: fossasia
+WORDPRESS_DB_NAME: fossasiadb