add mysql5.7 setup

.gitignore

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+persistent_data

razer-sql-uat/etc/conf.d/my-custom.cnf

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-[mysqld]
-innodb_buffer_pool_size = 2G

razer-sql/etc/conf.d/my-custom.cnf

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-[mysqld]
-innodb_buffer_pool_size = 2G

razer-sql5-uat/docker-compose.yml

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+# Use root/example as user/password credentials
+version: "3.1"
+
+services:
+    db:
+        image: mysql:5.7
+        command: --default-authentication-plugin=mysql_native_password
+        # restart: always
+        ports:
+            - "3306:3306"
+        environment:
+            MYSQL_ROOT_PASSWORD: root
+        volumes:
+            - ./persistent_data:/var/lib/mysql
+        #    - ./etc/conf.d:/etc/mysql/conf.d
+
+    #adminer:
+    #  image: adminer
+    #  restart: always
+    #  ports:
+    #    - 8080:8080

razer-sql5/docker-compose.yml

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+# Use root/example as user/password credentials
+version: "3.1"
+
+services:
+    db:
+        image: mysql:5.7
+        command: --default-authentication-plugin=mysql_native_password
+        # restart: always
+        ports:
+            - "3306:3306"
+        environment:
+            MYSQL_ROOT_PASSWORD: root
+        volumes:
+            - ./persistent_data:/var/lib/mysql
+        #    - ./etc/conf.d:/etc/mysql/conf.d
+
+    #adminer:
+    #  image: adminer
+    #  restart: always
+    #  ports:
+    #    - 8080:8080

razer-sql8-uat/README.md

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+# Setup docker for mySql
+
+1. Start docker
+
+```
+$ docker-composer up -d
+```
+
+2. to enter CLI
+
+```
+$ docker exec -it razer-sql_db_1 bash
+```
+
+3. mysql
+
+```
+$ mysql -p
+
+// password : root
+
+mysql> show databases;
+mysql> use db1;
+mysql> create database test2;
+
+// dump schema
+$ mysqldump -p -u [user] db_name > backup-file.sql
+
+// import schema
+$ mysql -p
+
+mysql> create database test2;
+mysql> exit
+
+$ mysql -p -u [user] [database] < backup-file.sql
+```
+
+4. Alternatively, import schema into sql db. Using GUI tool like [HeidiSQL](https://www.heidisql.com/) to simplify task
+5. Stop docker
+
+```
+$ docker-compose down
+```

razer-sql8/README.md

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+# Setup docker for mySql
+
+1. Start docker
+
+```
+$ docker-composer up -d
+```
+
+2. to enter CLI
+
+```
+$ docker exec -it razer-sql_db_1 bash
+```
+
+3. mysql
+
+```
+$ mysql -p
+
+// password : root
+
+mysql> show databases;
+mysql> use db1;
+mysql> create database test2;
+
+// dump schema
+$ mysqldump -p -u [user] db_name > backup-file.sql
+
+// import schema
+$ mysql -p
+
+mysql> create database test2;
+mysql> exit
+
+$ mysql -p -u [user] [database] < backup-file.sql
+```
+
+4. Alternatively, import schema into sql db. Using GUI tool like [HeidiSQL](https://www.heidisql.com/) to simplify task
+5. Stop docker
+
+```
+$ docker-compose down
+```