text: # This file is executed immediately after mysql_install_db,
  # to initialize a fresh data directory.
  
  ##########################################
  # Equivalent of mysql_secure_installation
  ##########################################
  
  # Changes during the init db should not make it to the binlog.
  # They could potentially create errant transactions on replicas.
  SET sql_log_bin = 0;
  # Remove anonymous users.
  DELETE FROM mysql.user WHERE User = '';
  
  # Disable remote root access (only allow UNIX socket).
  DELETE FROM mysql.user WHERE User = 'root' AND Host != 'localhost';
  
  # Remove test database.
  DROP DATABASE IF EXISTS test;
  
  ##########################################
  # Vitess defaults
  ##########################################
  
  # Vitess-internal database.
  CREATE DATABASE IF NOT EXISTS _vt;
  # Note that definitions of local_metadata and shard_metadata should be the same
  # as in production which is defined in go/vt/mysqlctl/metadata_tables.go.
  CREATE TABLE IF NOT EXISTS _vt.local_metadata (
    name VARCHAR(255) NOT NULL,
    value VARCHAR(255) NOT NULL,
    PRIMARY KEY (name)
    ) ENGINE=InnoDB;
  CREATE TABLE IF NOT EXISTS _vt.shard_metadata (
    name VARCHAR(255) NOT NULL,
    value MEDIUMBLOB NOT NULL,
    PRIMARY KEY (name)
    ) ENGINE=InnoDB;
  
  # Admin user with all privileges.
  CREATE USER 'vt_dba'@'localhost';
  GRANT ALL ON *.* TO 'vt_dba'@'localhost';
  GRANT GRANT OPTION ON *.* TO 'vt_dba'@'localhost';
  
  # User for app traffic, with global read-write access.
  CREATE USER 'vt_app'@'localhost';
  GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, RELOAD, PROCESS, FILE,
    REFERENCES, INDEX, ALTER, SHOW DATABASES, CREATE TEMPORARY TABLES,
    LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT, CREATE VIEW,
    SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, CREATE USER, EVENT, TRIGGER
    ON *.* TO 'vt_app'@'localhost';
  
  # User for app debug traffic, with global read access.
  CREATE USER 'vt_appdebug'@'localhost';
  GRANT SELECT, SHOW DATABASES, PROCESS ON *.* TO 'vt_appdebug'@'localhost';
  
  # User for administrative operations that need to be executed as non-SUPER.
  # Same permissions as vt_app here.
  CREATE USER 'vt_allprivs'@'localhost';
  GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, RELOAD, PROCESS, FILE,
    REFERENCES, INDEX, ALTER, SHOW DATABASES, CREATE TEMPORARY TABLES,
    LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT, CREATE VIEW,
    SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, CREATE USER, EVENT, TRIGGER
    ON *.* TO 'vt_allprivs'@'localhost';
  
  # User for slave replication connections.
  CREATE USER 'vt_repl'@'%';
  GRANT REPLICATION SLAVE ON *.* TO 'vt_repl'@'%';
  
  # User for Vitess filtered replication (binlog player).
  # Same permissions as vt_app.
  CREATE USER 'vt_filtered'@'localhost';
  GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, RELOAD, PROCESS, FILE,
    REFERENCES, INDEX, ALTER, SHOW DATABASES, CREATE TEMPORARY TABLES,
    LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT, CREATE VIEW,
    SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, CREATE USER, EVENT, TRIGGER
    ON *.* TO 'vt_filtered'@'localhost';
  
  # User for Orchestrator (https://github.com/github/orchestrator).
  CREATE USER 'orc_client_user'@'%' IDENTIFIED BY 'orc_client_user_password';
  GRANT SUPER, PROCESS, REPLICATION SLAVE, RELOAD
    ON *.* TO 'orc_client_user'@'%';
  GRANT SELECT
    ON _vt.* TO 'orc_client_user'@'%';
  
  FLUSH PRIVILEGES;
  
  