$ sudo apt install mysql-server

$ sudo mysql
mysql> SELECT user,authentication_string,plugin,host FROM mysql.user;
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';
mysql> FLUSH PRIVILEGES;
mysql> SELECT user,authentication_string,plugin,host FROM mysql.user;
mysql> exit

$ mysql -u root -p
mysql> CREATE USER 'admin'@'localhost' IDENTIFIED BY '123456';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost' WITH GRANT OPTION;
mysql> exit

$ mysql -u root -p
mysql> show databases;
mysql> use mysql
Database changed
mysql> show tables;
mysql> describe servers;
mysql> exit

$ mysql -u root -p
mysql> create database gofly;
Query OK, 1 row affected (0.04 sec)
mysql> CREATE USER 'gofly'@'localhost' IDENTIFIED BY '123456';
mysql> GRANT ALL PRIVILEGES ON gofly.* TO 'gofly'@'localhost' IDENTIFIED BY '123456';
mysql> exit

$ mysql -u root -p gofly < deploy/gmanager.sql
$ mysql -u root -p
mysql> use gofly
mysql> show tables;

$ mysqldump -u root -p gofly > dump.sql